jsarkar.mec | Indian Institute of Technology (BHU)

Dr. Jahar Sarkar

Professor

Department of Mechanical Engineering, IIT(BHU)

Phone No(s): 9919787557

Email: jsarkar.mec@itbhu.ac.in

Area of Interest: Heat Transfer, Thermodynamics, Refrigeration, Air-conditioning, Nanofluids, Radiative cooling, Solar energy

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DOB: 25.01.1977; Received Ph.D. in Mechanical Engineering from I.I.T. Kharagpur, 2006.

Achievements: Recognitions: Recognized in Top 2% World Scientists, 2024 (Rank = 4529 (world), 42 (Indian); 1st rank from the Institute); Ranked 17 among top scientists of Mechanical Engineering in India, 2024 (Research.com); Recognized in Top 2% World Scientists, 2023 (Rank: 4231 (world), 29 (Indian); 1st Indian in Mechanical Engineering); Ranked 21 among top scientists of Mechanical Engineering in India, 2023 (Research.com); Recognized in Top 2% World Scientists, 2022 (Rank = 5559 (world), 28 (Indian); 1st Indian in Mechanical Engineering); Ranked 20 among top scientists of Mechanical Engineering in India, 2022 (Research.com); Recognized in Top 2% World Scientists, 2021 (Rank = 5120 (world), 24 (Indian); 1st Indian in Mechanical Engineering); Biography included in Marquis Who’s Who in the World, 2010.

Credential: Granted/filed 7 patents/codes; Published 176 Journal papers (25 publications in Applied Energy, Renewable & Sustainable Energy Reviews, Energy Conversion & Management, Journal of Cleaner Production, Desalination, Journal of Power Sources and International Journal of Heat & Mass Transfer); Google Scholar - h-index = 54 and Citations: 10400.

Google scholar link: https://scholar.google.co.in/citations?user=Tv8978gAAAAJ&hl=en

Scopus link: https://www.scopus.com/authid/detail.uri?authrId=9846899800

Academic Qualification

Ph.D. in Mechanical Engineering (Topic: Heat Pump), 2006, Indian Institute of Technology Kharagpur, India.

M.Tech. in Mechanical Engineering (Thermal Engineering), 2001, Indian Institute of Technology Kharagpur, India.

B.E. in Mechanical Engineering, 1999, Indian Institute of Engineering Science & Technology, Shibpur, India.

Professional Experiences

Teaching & research: Department of Mechanical Engineering, IIT (BHU), Varanasi, India; Professor: 2022 - date.

Teaching & research: Department of Mechanical Engineering, IIT (BHU), Varanasi, India; Associate Professor: 2016 - 2022.

Teaching & research: Department of Mechanical Engineering, IIT (BHU), Varanasi, India; Assistant Professor: 2005 - 2016.

Research & Development: Research & Developement Centre, Mahindra & Mahindra Limited, Nasik, India; 2001 – 2002.

Ph.D. Thesis Guided

1. Arun Kr. Tiwari, 'Performance analysis of plate heat exchanger using nanofluids', 2010-2013 (Completed)
2. Rashmi Rekha Sahoo, 'Performance improvements in automotive cooling system', 2013-2017 (Completed)
3. Atul Bhattad, 'Use of hybrid nanofluids in plate heat exchanger for low temperature applications', 2015-2019 (Completed)
4. Sumit Kr. Singh, 'Performance analysis of tubular heat exchanger using enhancer and nanofluids', 2015-2020 (Completed)
5. Vivek Kumar, 'Hydrothermal characteristics of hybrid nanofluids in minichannel heat sink', 2015-2021 (Completed)
6. Prasant Saini, 'Thermodynamic, economic and environmental analyses of novel solar driven various poly generation systems', 2017-2021 (Completed)
7. Akhilesh Kr. Singh, 'Studies of Multi-purpose Heat Pump dryer', 2017-2021 (Completed)
8. Sarvesh Kashyap, 'Numerical and experimental studies on evaporative cooler'', 2017-2021 (Completed)
9. Mayaram Sahu, 'Numerical and experimental studies on single-phase natural circulation loop using water and oil based hybrid nanofluids', 2017-2022 (Completed)
10. Satish Upadhyay, 'On the Assessment of Nano-oils for Medium-temperature Solar Thermal Systems” 2018-2023 (Completed).
11. Jay Prakash Bijarniya, 'Experimental and Numerical Investigations on Daytime Radiative Cooling' 2019-2023 (completed)
12. Vinay Kumar Yadav, 2021-ongoing
13. Harendra Kumar Yadav, 2021-ongoing
14. Mayank Srivastava, 2021-ongoing
15. Mohan Narayan Gupta, 2021-ongoing
16. Kartik Kumar, 2021-ongoing

17. Sunil Kumar Gaur, 2023-ongoing

18. Kumar Gautam, 2023-ongoing

19. Aakash Mani, 2023-ongoing

20. Vishal Chaudhary, 2024-ongoing

21. Ujjwal Singh, 2024-ongoing

MTech thesis: 53

Co-investigator of consultancy project ‘Feasibility study of co-firing in pulverized coal boiler with agrofuels‘, Hindalco Industries Limited (Power division), 2013-2014 (5 Lacs).
Co-investigator of sprouting grant project ‘Facilities to measure liquid thermo-physical properties’, IIT (BHU) Varanasi, 2015-2016 (25 Lacs).
Principal Investigator of Institute Research Project ‘Heat Transfer and Flow Characteristics of Hybrid Nanofluids in Mini-Micro-channels’, IIT (BHU) Varanasi, 2016-2019 (15 Lacs).
Principal Investigator of project ‘Development of Eco-friendly Heat Pump Dryer for Bio Applications’, Design Innovation Centre - BHU & IIT(BHU) Varanasi, 2017-2019 (3 Lacs).
Co-investigator of Lab Grant project ‘Use of flow visualization and thermographic tools for thermal and biomedical applications’, IIT (BHU) Varanasi, 2018-2021 (Funding = 40 lacs).
Principal Investigator of project ‘Development of an intelligent evaporative cooler for composite climate’, Department of Science & Technology, New Delhi, 2018-2021 (Funding = 9 lacs).
Principal Investigator of project ‘Photonic radiative cooler for passive sub-ambient cooling’, IMPRINT-2, Science and Engineering Research Board, New Delhi, 2019-2022 (Funding = 45 lacs).
Co-investigator of project 'Assessment of structural vulnerability through characterization of tornado for a NPP site'. Board of Research in Nuclear Sciences, Mumbai, 2019-2023 (Funding = 33 lacs).
Principal Investigator of project ‘Development of ORC technology for waste heat utilization for the generation of electricity’, Board of Research in Nuclear Sciences, Mumbai, 2020-2024 (Funding = 29 lacs).
Co Investigator of project ‘Assessment of vulnerability of structures in regard to cyclonic wind loads’, Bureau of Indian standards, New Delhi, 2021-2024 (Funding = 16 lacs).
Co-Investigator of project 'Hybrid solar wind driven combined heat and power system using organic Rankine cycle', Council of Science and Technology, UP, 2022-ongoing (Funding = 10 lacs).
Principal Investigator of project ‘Transparent thermal regulating radiative coating development for smart windows’. CRG SERB, New Delhi, 2024-ongoing (Funding = 47 Lacs).

A. Patents/Codes filled/granted:

Sarkar J, Kashyap S. A dual-mode evaporator for composite climate. Ref. P.2366.IN, Application no. 202111057640, Filling date: 10.12.2021, Publication no. 53/2021 (31.12.2021), Patent No. 456357, Grant date: 03/10/2023.
Bijarniya JP, Sarkar J, Tiwari S, Maiti P. Polymer-particle composite radiative cooling coating, Ref. P.2627.IN, Application no. 202311000699, Filling date: 04.01.2023, Publication no. 41/2023 (13.10.2023).
Bijarniya JP, Sarkar J, Tiwari S, Maiti P. Polymer-ceramic composite coated daytime radiative water cooler system, Ref. P.2689.IN, Application no. 202311020582, Filling date: 23.03.2023; Publication no. 42/2023 (20.10.2023).
Sarkar A, Sarkar J. Estimation of Cyclonic Factor (k₄) - Guidelines [Doc. CED 57 (21667), IS 18315: Aug 2023], Bureau of Indian Standards, New Delhi.
Bijarniya JP, Bauri S, Tripathi S, Sarkar J, Maiti P. A film for daylight radiative cooling and a method of preparation thereof, Ref. P.2898.IN, Application no. 202311079464, Filling date: 22.11.2023, Publication no. 37/2024 (13.09.2024).
Sarkar J, Sahoo RR, Singh A. A Portable food dehydrator device, Ref. P.3087.IN, Application no. 202411060761, Filing date: 12.08.2024.

B. Journal Papers

Sarkar J, Bhattacharyya S, Ramgopal M. Optimization of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications. International Journal of Refrigeration 2004; 27(8): 830-838.

Sarkar J, Bhattacharyya S, Ramgopal M. Transcritical CO₂ heat pump systems: Exergy analysis including heat transfer and fluid flow effects, Energy Conversion and Management, 2005; 46(13-14): 2053-2067.

Bhattacharyya S, Mukhopadyay S, Kumar A, Khurana, Sarkar J. Optimization of a CO₂-C₃H₈ cascade system for refrigeration and heating, International Journal of Refrigeration, 2005; 28(8): 1284-1292.

Sarkar J, Bhattacharyya S, Ramgopal M. Simulation of a transcritical CO₂ heat pump cycle for simultaneous cooling and heating applications, International Journal of Refrigeration, 2006; 29(5): 735-743.

Sarkar J, Bhattacharyya S, Ramgopal M. CO₂ heat pump dryer: Part 1. Mathematical model and simulation, Drying Technology, 2006; 24(12): 1583-1591.

Sarkar J, Bhattacharyya S, Ramgopal M. CO₂ heat pump dryer: Part 2. Validation and simulation results, Drying Technology, 2006; 24(12): 1593-1600.

Sarkar J, Bhattacharyya S, Ramgopal M. Natural refrigerant-based subcritical and transcritical cycles for high temperature heating, International Journal of Refrigeration, 2007; 30(1): 3-10.

Agrawal N, Bhattacharyya S, Sarkar J. Optimization of two-stage transcritical carbon dioxide heat pump cycles, International Journal of Thermal Sciences, 2007; 46(2): 180-187.

Sarkar J, Bhattacharyya S. Overall conductance and heat transfer area minimization of refrigerators and heat pumps with finite heat reservoirs, Energy Conversion and Management, 2007; 48(3): 803-808.

10.

Sarkar J, Bhattacharyya S, Ramgopal M. Analytical minimization of overall conductance and heat transfer area in refrigeration and heat pump systems and its numerical confirmation, Energy Conversion and Management, 2007; 48(4): 1245-1250.

11.

Bhattacharyya S, Bose S, Sarkar J. Exergy maximization of cascade refrigeration cycles and its numerical verification for a transcritical CO₂-C₃H₈ system, International Journal of Refrigeration, 2007; 30(4): 624-632.

12.

Sarkar J. Optimization of ejector-expansion transcritical CO₂heat pump cycle, Energy, 2008; 33(9): 1399-1406.

13.

Sarkar J, Bhattacharyya S, Ramgopal M. Thermodynamic optimization of irreversible heat pumps, Archives of Thermodynamics, 2008; 29(3): 59-68.

14.

Bhattacharyya S, Mukhopadyay S, Sarkar J. CO₂-C₃H₈ cascade refrigeration – heat pump system: Heat exchanger inventory optimization and its numerical verification, International Journal of Refrigeration, 2008 31(7): 1207-1213.

15.

Sarkar J, Bhattacharyya S, Ramgopal M. Irreversibility minimization of heat exchangers for transcritical CO₂ systems, International Journal of Thermal Sciences, 2009; 48(1): 146-153.

16.

Sarkar J, Bhattacharyya S, Ramgopal M. A transcritical CO₂ heat pump for simultaneous water cooling and heating: Test results and model validation, International Journal of Energy Research, 2009; 33(1): 100-109.

17.

Sarkar J. DI Diesel engine cycle simulation and validation, IE (India) Journal-MC, 2009; 89(MC/4): 13-17.

18.

Sarkar J, Bhattacharyya S. Assessment of blends of CO₂ with butane and isobutane as working fluids for heat pump applications, International Journal of Thermal Sciences, 2009; 48(7): 1460-1465.

19.

Bhattacharyya S, Garai A, Sarkar J. Thermodynamic analysis and optimization of a novel N₂O-CO₂ cascade system for refrigeration and heating, International Journal of Refrigeration, 2009; 32(5): 1077-1084.

20.

Sarkar J, Bhattacharyya S. Optimization of recompression S-CO₂ power cycle with reheating, Energy Conversion and Management, 2009; 50(8): 1939-1945.

21.

Sarkar J. Performance characteristics of natural refrigerants based ejector expansion refrigeration cycles, Proc IMechE; Pt. A: Journal of Power and Energy, 2009; 223(5): 543-550.

22.

Sarkar J. Cycle parameter optimization of vortex tube expansion transcritical CO₂ system, International Journal of Thermal Sciences, 2009; 48(9): 1823-1828.

23.

Sarkar J. Transcritical CO₂ heat pump simulation model and validation for simultaneous cooling and heating, International Journal of Mathematical, Physical and Engineering Sciences, 2009; 3(4): 199-204.

24.

Sarkar J. Second law analysis of supercritical CO₂ recompression Brayton cycle, Energy, 2009; 34(9): 1172-1178.

25.

Sarkar J, Bhattacharyya S. Thermodynamic analyses and optimization of a transcritical N₂O cycle, International Journal of Refrigeration, 2010; 33(1): 33-40.

26.

Sarkar J. Geometric parameter optimization of ejector expansion refrigeration cycle with natural refrigerants, International Journal of Energy Research, 2010; 34(1): 84-94.

27.

Sarkar J. Review on cycle modifications of transcritical CO₂ refrigeration and heat pump systems, J Adv Research Mechanical Engg, 2010; 1(1): 22-29.

28.

Sarkar J, Bhattacharyya S, Ramgopal M. Performance of a transcritical CO₂ heat pump for simultaneous water cooling and heating, International J Applied Science, Engg and Technology, 2010; 6(1): 57-63.

29.

Sarkar J, Bhattacharyya S, Ramgopal M. Experimental investigation of transcritical CO₂ heat pump for simultaneous water cooling and heating, Thermal Science, 2010; 14(1): 57-64.

30.

Sarkar J, Agrawal N. Performance optimization of transcritical CO₂ cycle with parallel compression economization, International Journal of Thermal Sciences, 2010; 49(5): 838-843.

31.

Sarkar J. Performance characteristics of multi-evaporator transcritical CO₂ refrigeration cycles with hybrid compression/ejection, IMechE, Part A: Journal of Power and Energy, 2010; 224(6): 773-780.

32.

Sarkar J. Thermodynamic analyses and optimization of a recompression N₂O Brayton power cycle, Energy, 2010; 35(8): 3422-3428.

33.

Sarkar J. Performance characteristics of refrigeration cycle with parallel compression economization, International Journal of Energy Research, 2010; 34(13): 1205-1214.

34.

Agrawal N, Sarkar J, Bhattacharyya S. Thermodynamic analysis and optimization of a novel two-stage transcritical N₂O cycle, International Journal of Refrigeration, 2011; 34(4): 991-999.

35.

Sarkar J, A critical review on convective heat transfer correlations of nanofluids, Renewable & Sustainable Energy Reviews, 2011; 15(6): 3271-3277.

36.

Sarkar J, Performance of nanofluid-cooled shell and tube gas cooler in transcritical CO₂ refrigeration systems, Applied Thermal Engineering, 2011; 31(14-15): 2541-2548.

37.

Sarkar J. Ejector Enhanced Vapor Compression Refrigeration and Heat Pump Systems - A Review, Renewable & Sustainable Energy Reviews, 2012; 16(9): 6647-6659.

38.

Tiwari AK, Ghosh P, Sarkar J. Investigation of thermal conductivity and viscosity of nanofluids, Journal of Environmental Research and Development, 2012; 7(2): 768-777.

39.

Sarkar J. Transcritical CO₂ Refrigeration systems: comparison with convensional solutions and applications, International Journal of Air-Conditioning & Refrigeration, 2012; 20(4): no. 1250017.

40.

Sarkar J, Bhattacharyya S. Operating characteristics of transcritical CO₂ heat pump for simultaneous water cooling and heating, Archives of Thermodynamics, 2012; 33(4): 23–40.

41.

Sarkar J. Performance optimization of transcritical CO₂ refrigeration cycle with thermoelectric subcooler, International Journal of Energy Research, 2013; 37(2): 121-128.

42.

Tiwari AK, Ghosh P, Sarkar J. Solar water heating using nanofluids - A comprehensive overview and environmental impact analysis, International Journal of Emerging Technology and Advanced Engineering, 2013; 3(3): 221-224.

43.

Sarkar J, Tarodiya R. Performance analysis of louvered fin tube automotive radiator using nanofluids as coolants, International Journal of Nanomanufacturing, 2013; 9(1): 51-65.

44.

Tiwari AK, Ghosh P, Sarkar J. Heat transfer and pressure drop characteristics of CeO₂/water nanofluid in plate heat exchanger, Applied Thermal Engineering, 2013; 57(1-2): 24-32.

45.

Tiwari AK, Ghosh P, Sarkar J. Performance comparison of the plate heat exchanger using different nanofluids, Experimental Thermal and Fluid Science, 2013; 49: 141-151.

46.

Sarkar J. Performance analysis of natural-refrigerants-based vortex tube expansion refrigeration cycles, International Journal of Thermal & Environmental Engineering, 2013; 6(2): 61-68.

47.

Sarkar J, Bhattacharyya S, Lal A. Selection of suitable natural refrigerants pairs for cascade refrigeration system, IMechE, Part A: Journal Power Energy, 2013; 227(5): 612-622.

48.

Sarkar J, Bhattacharyya S, Lal A. Performance comparison of natural refrigerants based cascade systems for ultra low temperature applications. International Journal of Sustainable Energy, 2013; 32(5): 406-420.

49.

Sarkar J. Exergy analysis of vortex tube expansion vapor compression refrigeration system, International Journal of Exergy, 2013; 13(4): 431-446.

50.

Sarkar J. Performance of a flat plate solar thermal collector using supercritical carbon dioxide as heat transfer fluid, International Journal of Sustainable Energy, 2013; 32(6): 531-543.

51.

Sarkar J. Performance evaluation of using water-based nanofluids as coolants in the gas cooler of a transcritical CO₂ refrigerant system, Journal of Enhanced Heat Transfer, 2013; 20(5): 389-397.

52.

Sarkar J. Cascade refrigeration system with internal heat exchanger: Suitable natural refrigerant pair selection, Journal of Refrigeration, Air conditioning, Heating and ventilation, 2014; 1(1): 1-8.

53.

Sarkar J. Thermodynamic optimization of irreversible refrigerator and verification with CO₂ system, International Journal of Thermodynamics, 2014; 17(2): 71-79.

54.

Tiwari AK, Ghosh P, Sarkar J, Dahiya H, Parekh J. Numerical investigation of heat transfer and fluid flow in plate heat exchanger using nanofluids, International Journal Thermal Sciences, 2014; 85: 93-103.

55.

Sarkar J. On suitability of supercritical carbon dioxide as heat transfer fluid in flat plate solar collector, Journal of Thermal Engineering & Applications, 2014; 1(3): 1-9.

56.

Tiwari AK, Ghosh P, Sarkar J. Combined energy and exergy analysis of a corrugated plate heat exchanger and experimental investigation, International Journal of Exergy, 2014; 15(4): 395-411.

57.

Sarkar J, Ghosh P, Adil A. A Review on hybrid nanofluids: Recent research, development and applications, Renewable & Sustainable Energy Reviews, 2015; 43: 164-177.

58.

Sarkar J. Performance improvement of double-tube gas cooler in CO₂ refrigeration system using nanofluids. Thermal Science, 2015; 19(1): 109-118.

59.

Upadhyay S, Sarkar J, Sahoo RR. Combined energy, exergy and optical analyses of flat plate solar thermal collector using nanofluids, Journal of Material Science & Mechanical Engineering, 2015; 2(2): 134-139.

60.

Sahoo RR, Ghosh P, Sarkar J. Coolant performance in louvered fin tube automotive radiator, Journal of Material Science & Mechanical Engineering, 2015; 2(2): 143-148.

61.

Sarkar J. Analyses and optimization of a supercritical N₂O Rankine cycle for low-grade heat conversion, Energy 2015; 81: 344-351.

62.

Sarkar J. Review and future trends of supercritical CO₂ Rankine cycle for low-grade heat conversion, Renewable & Sustainable Energy Reviews, 2015; 48: 434-451.

63.

Tiwari AK, Ghosh P, Sarkar J. Particle concentration levels of various nanofluids in plate heat exchanger for best performance, International Journal of Heat and Mass Transfer, 2015; 89: 1110-1118.

64.

Sarkar J, Bhattacharyya S. Potential of organic Rankine cycle technology in India: Working fluid selection and feasibility study, Energy 2015; 90(2): 1618-1625.

65.

Sarkar J. Power generation options of next generation gas-cooled fast nuclear reactor (GFR): an overview, International Journal of Thermal Energy and Applications, 2015; 1(1): 21-30.

66.

Sarkar J, Joshi D. Extended exergy analysis based comparison of subcritical and transcritical refrigeration systems, International Journal of Air-Conditioning and Refrigeration, 2016; 24(2): No. 1650009.

67.

Sarkar J, Joshi M. Advanced exergy analysis of transcritical CO₂heat pump system based on experimental data, Sadhana (Indian Academy of Sciences), 2016; 41(11): 1359-1356.

68.

Mishra S, Sarkar J. Performance analysis of refrigerants based on ejector expansion technology, International Journal of Mechanical And Production Engineering, 2016; 4(3): 40-43.

69.

Sarkar J. Comprehensive study on the role of eco-friendly working fluid properties on ORC performances, International Journal of Thermodynamics, 2016; 19(4): 198-204.

70.

Mishra S, Sarkar J. Performance characteristic of low-GWP R134a alternative refrigerants in ejector expansion refrigeration system, Archives of Thermodynamics, 2016; 37(4): 55-72.

71.

Sarkar J. Performance analyses of novel two-phase ejector enhanced multi-evaporator refrigeration systems, Applied Thermal Engineering, 2017; 110: 1635-1642.

72.

Sahoo RR, Ghosh P, Sarkar J. Energy and exergy comparisons of water based optimum brines as coolants for rectangular fin automotive radiator, International Journal of Heat and Mass Transfer, 2017; 105: 690–696.

73.

Sarkar J. Property-based selection criteria of low GWP working fluids for organic Rankine cycle, Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2017; 39(4): 1419-1428.

74.

Sahoo RR, Sarkar J. Heat transfer performance characteristics of hybrid nanofluids as coolant in louvered fin automotive radiator, Heat and Mass Transfer, 2017; 53(6): 1923-1931.

75.

Prakash M, Sarkar A, Sarkar J, Mondal SS, Chakraborty JP. Proposal and design of a new biomass based syngas production system integrated with combined heat and power generation, Energy, 2017; 133: 986-997.

76.

Sahoo RR, Ghosh P, Sarkar J. Performance enhancement for wavy fin automotive radiator using optimum PG brine based nanofluids, Heat Transfer - Asian Research, 2017; 46(6): 585-597.

77.

Bhattad A, Sarkar J, Ghosh P. Exergetic analysis of plate evaporator using hybrid nanofluids as secondary refrigerant for low-temperature applications, International Journal of Exergy, 2017; 24(1): 1-20.

78.

Sahoo RR, Ghosh P, Sarkar J. Performance analysis of a louvered fin automotive radiator using hybrid nanofluid as coolant, Heat Transfer - Asian Research, 2017; 46(7): 978-995.

79.

Sahoo RR, Ghosh P, Sarkar J. Performance comparison of various coolants for louvered fin tube automotive radiator, Thermal Science, 2017; 21(6B): 2871-2881.

80.

Sarkar J. Generalized pinch point design method of subcritical-supercritical organic Rankine cycle for maximum heat recovery, Energy, 2018; 143: 141-150.

81.

Bhattad A, Sarkar J, Ghosh P. Improving the performance of refrigeration systems by using nanofluids: A comprehensive review, Renewable and Sustainable Energy Reviews, 2018; 82(3): 3656-3669.

82.

Bhattad A, Sarkar J, Ghosh P. Energy-economic analysis of plate evaporator using brine based hybrid nanofluids as secondary refrigerant, International Journal of Air-Conditioning and Refrigeration, 2018; 26(1): No. 1850003.

83.

Sarkar J. A novel pinch point design methodology based energy and economic analyses of organic Rankine cycle, ASME Journal of Energy Resources Technology, 2018; 140(5): No. 052004.

84.

Kumar V, Sarkar J. Two-phase numerical simulation of hybrid nanofluid heat transfer in minichannel heat sink and experimental validation, International Communications in Heat & Mass Transfer, 2018; 91: 239-247.

85.

Bhattad A, Sarkar J, Ghosh P. Discrete phase numerical model and experimental study of hybrid nanofluid heat transfer and pressure drop in plate heat exchanger, International Communications in Heat & Mass Transfer, 2018; 91: 262-273.

86.

Sarkar J. Novel pinch point method based exergetic optimization of subcritical organic Rankine cycle for waste heat recovery, International Journal of Exergy, 2018; 25(4): 281-299.

87.

Singh SK, Sarkar J. Energy, exergy and economic assessments of shell and tube condenser using hybrid nanofluid as coolant, International Communications in Heat & Mass Transfer, 2018; 98: 41-48.

88.

Prakash M, Sarkar A, Sarkar J, Chakraborty JP, Mondal SS, Sahoo RR. Performance assessment of novel biomass gasification based CCHP systems integrated with syngas production, Energy, 2019; 167: 379-390.

89.

Sarkar J. Improving thermal performance of micro-channel electronic heat sink using supercritical CO₂ as coolant, Thermal Science, 2019; 23(1): 243-253.

90.

Kumar V, Sarkar J. Numerical and experimental investigations on heat transfer and pressure drop characteristics of Al₂O₃-TiO₂ hybrid nanofluid in minichannel heat sink with different mixture ratio, Powder Technology, 2019; 345: 717–727.

91.

Sahu M, Sarkar J. Steady state energetic and exergetic performances of single phase natural circulation loop with hybrid nanofluids, ASME Journal of Heat Transfer, 2019; 141(8): No. 082401.

92.

Kumar V, Sarkar J. Research and development on composite nanofluids as next-generation heat transfer medium, Journal of Thermal Analysis and Calorimetry, 2019; 137(4): 1133-1154.

93.

Singh A, Sarkar J, Sahoo RR. Comparative analyses on a batch-type heat pump dryer using low GWP refrigerants, Food and Bioproducts Processing, 2019; 117: 1-13.

94.

Bhattad A, Sarkar J, Ghosh P. Experimentation on effect of particle ratio on hydrothermal performance of plate heat exchanger using hybrid nanofluid, Applied Thermal Engineering, 2019; 162: No. 114309.

95.

Kashyap S, Sarkar J, Kumar A. Proposal and month-wise performance evaluation of a novel dual-mode evaporative cooler, Heat and Mass Transfer, 2019; 55(12): 3523-3536.

96.

Kumar V, Sarkar J. Particle ratio optimization of Al₂O₃-MWCNT hybrid nanofluid in minichannel heat sink for best hydrothermal performance, Applied Thermal Engineering, 2020; 165: No. 114546.

97.

Kumar V, Sarkar J. Experimental hydrothermal behavior of hybrid nanofluid for various particle ratios and comparison with other fluids in minichannel heat sink, International Communications in Heat and Mass Transfer, 2020; 110: No. 104397.

98.

Sahu M, Sarkar J, Chandra L. Transient thermodydraulics and performance characteristics of single phase natural circulation loop using hybrid nanofluids, International Communications in Heat and Mass Transfer, 2020; 110: No. 104433.

99.

Saini P, Singh J, Sarkar J. Proposal and performance comparison of various solar-driven novel combined cooling, heating and power system topologies, Energy Conversion and Management, 2020; 205: No. 112342.

100.

Bhattad A, Sarkar J, Ghosh P. Energetic and exergetic performances of plate heat exchanger using brine based hybrid nanofluid for milk chilling application, Heat Transfer Engineering, 2020; 41(6-7): 522-535.

101.

Singh SK, Sarkar J. Improvement in energy performance of tubular heat exchangers using nanofluids: A review, Current Nanoscience, 2020; 16(2): 136-156.

102.

Bhattad A, Sarkar J, Ghosh P. Hydrothermal performance of different alumina hybrid nanofluid types in plate heat exchanger: Experimental study, Journal of Thermal Analysis and Calorimetry, 2020; 139(6): 3777-3787.

103.

Kumar V, Sarkar J. Experimental hydrothermal characteristics of minichannel heat sink using various types of hybrid nanofluids, Advanced Powder Technology, 2020; 31(2): 621-631.

104.

Singh A, Sarkar J, Sahoo RR. Energetic and exergetic performance simulation of open-type heat pump dryer with next generation refrigerants, Drying Technology, 2020; 38(8): 1011-1023.

105.

Singh A, Sarkar J, Sahoo RR. Experimental energy-exergy performance and kinetics analyses of compact dual-mode heat pump drying of food chips, Journal of Food Process Engineering, 2020; 43(6): e13404.

106.

Singh A, Sarkar J, Sahoo RR. Experimental energy, exergy, economic and exergoeconomic analyses of batch-type solar-assisted heat pump dryer, Renewable Energy, 2020; 156: 1107-1116.

107.

Kashyap S, Sarkar J, Kumar A. Comparative performance analysis of different novel regenerative evaporative cooling device topologies, Applied Thermal Engineering, 2020; 176: No. 115474.

108.

Singh SK, Sarkar J. Improving hydrothermal performance of hybrid nanofluid in double tube heat exchanger using tapered wire coil turbulator, Advanced Powder Technology, 2020; 31(5): 2092-2100.

109.

Kashyap S, Sarkar J, Kumar A. Exergy, economic, environmental and sustainability analyses of possible regenerative evaporative cooling device topologies, Building and Environment, 2020; 180: No. 107033.

110.

Bhattad A, Sarkar J. Hydrothermal performance of plate heat exchanger with an alumina–graphene hybrid nanofluid: experimental study. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2020; 42(7), No. 377.

111.

Singh A, Sarkar J, Sahoo RR. Experimental performance analysis of novel indirect-expansion solar-infrared assisted heat pump dryer for agricultural products, Solar Energy, 2020; 206: 907-917.

112.

Kumar V, Sarkar J. Effect of different nanoparticles dispersed nanofluids on hydrothermal-economic performance of minichannel heat sink, Journal of Thermal Analysis and Calorimetry, 2020; 141(4): 1477-1488.

113.

Bhattad A, Sarkar J, Ghosh P. Heat transfer characteristics of plate heat exchanger using hybrid nanofluids: Effect of nanoparticle mixture ratio, Heat and Mass Transfer, 2020; 56(8): 2457-2472.

114.

Bijarniya JP, Sarkar J, Maiti P. Environmental effect on the performance of passive daytime photonic radiative cooling and building energy-saving potential, Journal of Cleaner Production, 2020; 274: No. 123119.

115.

Singh A, Sarkar J, Sahoo RR. Experimentation on solar-assisted heat pump dryer: Thermodynamic, economic and exergoeconomic assessments, Solar Energy, 2020; 208: 150-159.

116.

Singh A, Sarkar J, Sahoo RR. Experiment on waste heat recovery-assisted heat pump drying of food chips: Performance, economic and exergoeconomic analyses, Journal of Food Processing and Preservation, 2020; 44(9): No. 14699.

117.

Bijarniya JP, Sarkar J, Maiti P. Review on passive daytime radiative cooling: Fundamentals, recent researches, challenges and opportunities, Renewable and Sustainable Energy Reviews, 2020; 133: No. 110263.

118.

Bijarniya JP, Sarkar J, Climate change effect on the cooling performance and assessment of passive daytime photonic radiative cooler in India, Renewable and Sustainable Energy Reviews, 2020; 134: No. 110303.

119.

Saini P, Singh J, Sarkar J. Thermodynamic, economic and environmental analyses of a novel solar energy driven small-scale combined cooling, heating and power system, Energy Conversion and Management, 2020; 226: No. 113542.

120.

Kashyap S, Sarkar J, Kumar A. Effect of surface modifications and using hybrid nanofluids on energy-exergy performance of regenerative evaporative cooler, Building and Environment, 2021; 189: No. 107507.

121.

Bhattad A, Sarkar J. Effects of nanoparticle shape and size on the thermohydraulic performance of plate evaporator using hybrid nanofluids, Journal of Thermal Analysis and Calorimetry, 2021; 143(1): 767-779.

122.

Bijarniya JP, Sarkar J, Maiti P. Performance simulation of polymer-based nanoparticle and void dispersed photonic structures for radiative cooling, Scientific Reports, 2021; 11: No. 893.

123.

Singh SK, Sarkar J. Thermohydraulic behavior of concentric tube heat exchanger inserted with conical wire coil using mono/hybrid nanofluids International Communications in Heat and Mass Transfer, 2021; 122: No. 105134.

124.

Sahu M, Sarkar J, Chandra L. Single-phase natural circulation loop using oils and ternary hybrid nanofluids: Steady-state and transient thermo-hydraulics, Journal of Thermal Science and Engineering Applications, 2021; 13(2): No. 021030.

125.

Singh SK, Sarkar J. Improving hydrothermal performance of double‑tube heat exchanger with modified twisted tape inserts using hybrid nanofuid, Journal of Thermal Analysis and Calorimetry, 2021; 143(6): 4287-4298.

126.

Kumar V, Sarkar J, Yan W-M. Thermal-hydraulic behavior of lotus like structured rGO-ZnO composite dispersed hybrid nanofluid in mini channel heat sink, International Journal of Thermal Sciences, 2021; 164: No. 106886.

127.

Upadhyay S, Chandra L, Sarkar J. A generalized Nusselt number correlation for nanofluids and look-up diagrams to select a heat transfer fluid for medium temperature solar thermal applications, Applied Thermal Engineering, 2021; 190: No. 116469.

128.

Kashyap S, Sarkar J, Kumar A. Performance enhancement of regenerative evaporative cooler by surface alterations and using ternary hybrid nanofluids, Energy, 2021; 225: No. 120199.

129.

Sahu M, Sarkar J, Chandra L.Effects of various modeling assumptions on steady-state and transient performances of single-phase natural circulation loop, International Communications in Heat and Mass Transfer, 2021; 124: No. 105247.

130.

Singh SK, Sarkar J. Hydrothermal performance comparison of modified twisted tapes and wire coils in tubular heat exchanger using hybrid nanofluid, International Journal of Thermal Sciences, 2021; 166: No. 106990.

131.

Singh SK, Sarkar J. Experimental hydrothermal characteristics of concentric tube heat exchanger with V-cut twisted tape turbulator using PCM dispersed mono/hybrid nanofluids, Experimental Heat Transfer, 2021; 34(5): 421-442.

132.

Sahu M, Sarkar J, Chandra L. Steady‐state and transient hydrothermal analyses of single‐phase natural circulation loop using water‐based tri‐hybrid nanofluids, AIChE Journal, 2021; 67(6): No. 17179.

133.

Kashyap S, Sarkar J, Kumar A. Development and experimental analysis of a novel dual-mode counter-ﬂow evaporative cooling device, Building and Environment, 2021; 205: No. 108176.

134.

Yadav VK, Sarkar J. Thermodynamic, economic, and environmental analyses of various novel ejector refrigeration subcooled transcritical CO₂ systems, International Journal of Energy Research, 2021; 45(11): 16115-16133.

135.

Kashyap S, Sarkar J, Kumar A. Performance assessment of dual-mode evaporative cooler for futuristic climatic scenarios considering climate change effect, Journal of Building Engineering, 2021; 42: No. 103043.

136.

Saini P, Singh J, Sarkar J. Novel combined desalination, heating and power system: Energy, exergy, economic and environmental assessments, Renewable and Sustainable Energy Reviews, 2021; 151: No. 111612.

137.

Ananthakrishnan K, Bijarniya JP, Sarkar J. Energy, exergy, economic and ecological analyses of a diurnal radiative water cooler, Renewable and Sustainable Energy Reviews, 2021; 152: No. 111676.

138.

Singh A, Sarkar J, Sahoo RR. Experimentation and performance analysis of solar-assisted heat pump dryer for intermittent drying of food chips, ASME Journal of Solar Energy Engineering, 2022; 144(2): No. 021004.

139.

Bijarniya JP, Sarkar J, Maiti P. Performance improvement of CO₂ air conditioner by integrating photonic radiative cooler as sub-cooler or/and roof envelope, Energy Conversion and Management, 2022; 251: No. 115019.

140.

Kashyap S, Sarkar J, Kumar A. Experimental exergy, economic and sustainability analyses of the dual-mode evaporative cooler, International Journal of Refrigeration, 2022; 135: 121-130.

141.

Kashyap S, Sarkar J, Kumar A. Energy, exergy and economic assessments of the dual-mode evaporative cooler for various international climate zones, Building Services Research and Technology, 2022; 43(2): 179-196.

142.

Gupta AK, Kashyap S, Sarkar J. Machine learning model of regenerative evaporative cooler for performance prediction based on experimental investigation, International Journal of Refrigeration, 2022; 137: 178-187.

143.

Upadhyay S, Savant PR, Chandra L, Sarkar J. Generalized Nusselt number correlation for binary hybrid nano-oils as heat transfer fluid in solar thermal systems, ASME Journal of Heat Transfer, 2022; 144(7): No. 072901.

144.

Kumar V, Sarkar J. Numerical analysis on hydrothermal behavior of various ribbed minichannel heat sinks with different hybrid nanofluids, Arabian Journal for Science and Engineering, 2022; 47(5): 6209-6221.

145.

Yadav VK, Sarkar J, Ghosh P. Thermodynamic, economic and environmental analyses of novel solar-powered ejector refrigeration systems, Energy Conversion and Management, 2022; 264: No. 115730.

146. Bijarniya JP, Sarkar J, Tiwari S, Maiti P. Experimentally optimized particle-polymer matrix structure for efficient daytime radiative cooling, AIP Journal of Renewable and Sustainable Energy, 2022; 14(5): No. 055101.

147. Singh A, Sarkar J, Sahoo RR. Experimental investigation on novel heat pump system for combined drying and air conditioning for arid climate, Drying Technology, 2022; 40(16): 3556-3567.

148. Sahu M, Sarkar J, Chandra L. Experimental thermal-hydraulic characteristics of single-phase natural circulation loop using water-based hybrid nanofluids, International Journal of Thermal Sciences, 2023; 187: No. 108198.

149. Yadav VK, Sarkar J, Ghosh P. Thermodynamic, economic and environmental assessments of a novel solar-driven combined cooling and power system, Journal of Cleaner Production, 2023; 402: No. 136791.

150. Srivastava M, Sarkar J, Sarkar A, Maheshwari NK, Antony A. 4E analysis and optimization of novel ejector-enhanced organic Rankine cycles by introducing new economic models, Thermal Science and Engineering Progress, 2023; 41: No. 101855.

151. Bijarniya JP, Sarkar J, Tiwari S, Maiti P. Development and experimental performance characteristics of composite coated daytime radiative water cooler, Science and Technology for the Built Environment, 2023; 29(6): 606-617.

152. Upadhyay S, Chandra L, Sarkar J. New insights in turbulent heat transfer with oil and hybrid nano-oils, subject to discrete heating, for parabolic trough absorbers, ASME Journal of Heat and Mass Transfer, 2023; 145(8): 083901.

153. Bijarniya JP, Sarkar J, Tiwari S, Maiti P. Development and degradation analysis of novel three-layered sustainable composite coating for daytime radiative cooling, Solar Energy materials and Solar Cells, 2023; 257: No. 112386.

154. Yadav VK, Sarkar J, Ghosh P. Thermodynamic, economic and environmental analyses of novel concentrated solar-PV-thermal integrated combined power, cooling and desalination system, Desalination, 2023; 563: No. 116721.

155. Srivastava M, Sarkar J, Sarkar A, Maheshwari NK, Antony A. Techno-economic and 4E comparisons of various thermodynamic power cycles for low-medium grade heat recovery, Process Safety and Environmental Protection, 2023; 178: 528-539.

156. Sahu M, Sarkar J, Chandra L.Experimental study on energy-exergy performance of single-phase natural circulation loop using mono/hybrid nano-oils, International Journal of Thermal Sciences, 2023; 194: No. 108554.

157. Gupta PR, Ghosh P, Sarkar J. Effects of probe parameters on radio-frequency ablation of localized liver cancer using a personalized patient treatment planning, Thermal Science and Engineering Progress, 12.2023; 46: No. 102236.

158. Kumar K, Sarkar J, Mondal SS. Assessment of Newly-Designed Hybrid Nanofluid-Cooled Micro-Channeled Thermal Management System for Li-Ion Battery, ASME Journal of Electrochemical Energy Conversion and Storage, 2024; 21(1): No. 011011.

159. Kumar K, Sarkar J, Mondal SS. Analysis of ternary hybrid nanofluid in microchannel-cooled cylindrical Li-ion battery pack using Multi-Scale Multi-Domain framework, Applied Energy, 02.2024; 355: No. 122241.

160. Yadav VK, Bijarniya JP, Sarkar J, Ghosh P. Techno-economic assessment of solar-driven ejector refrigeration system assisted with daytime radiative condenser, Energy Conversion and Management, 2024; 301: No. 118051.

161. Sahoo RR, Sarkar J. Experimental study on hydrothermal characteristics of shell and tube heat exchanger using phase change material‑based hybrid nanofluid, Heat and Mass Transfer, 2024; 60(3): 519-533.

162. Yadav VK, Sarkar J, Ghosh P. Performance optimization and multi-objective analysis of an innovative solar-driven combined power and cooling system, Energy and Buildings, 2024; 307: No. 113943.

163. Kumar K, Sarkar J, Mondal SS. Multi-scale-multi-domain simulation of novel microchannel-integrated cylindrical Li-ion battery thermal management: Nanoparticle shape effect, Journal of Energy Storage, 2024; 84(A): No. 110824.

164. Yadav HK, Yadav S, Gupta MN, Sarkar A, Sarkar J. Diurnal variations in wind power density analysis for optimal wind energy integration in different Indian sites, Sustainable Energy Technologies & Assessments, 2024; 64: No. 103744.

165. Gaur SK, Sahoo RR, Sarkar J. Numerical investigation on assessing the influence of diverse-shaped hybrid nanofluids on thermal performance of triple tube heat exchanger, Powder Technology, 2024; 439: No. 119690.

166. Sarkar J, Sahoo RR. Experiment on heat exchanger using innovative coils and Phase Change Material/MXene Nanofluids, Journal of Thermophysics and Heat Transfer, 2024; 38(2): 250-259.

167. Gaur SK, Sahoo RR, Sarkar J. Thermo-hydraulic performance investigation of triple-tube heat exchanger with MXene-based various shape hybrid nanofluids Journal of Thermal Analysis and Calorimetry, 2024; 149(7): 3071-3084.

168. Bijarniya JP, Tripathi S, Bauri S, Sarkar J, Maiti P. Progress on natural and sustainable materials for daytime radiative cooling, ACS Applied Optical Materials, 2024; 2(6): 945-962.

169. Srivastava M, Sarkar J, Sarkar A, Maheshwari NK, Antony A. Thermo-economic feasibility study to utilize ORC technology for waste heat recovery from Indian nuclear power plants, Energy, 2024; 298: No. 131338.

170. Bijarniya JP, Sarkar J, Maiti P. Experimental performance characteristics of the daytime radiative cooler at various surface orientations, Solar Energy Materials and Solar Cells, 2024; 272: No. 112906.

171. Yadav VK, Sarkar J, Ghosh P. Recent advances and future outlook on solar‑powered ejector refrigeration and associated multi‑generation systems, Journal of Thermal Analysis and Calorimetry, 2024; 149(15): 7869-7889.

172. Gaur SK, Sahoo RR, Sarkar J. Numerical investigation on energetic and exergetic performance of triplex concentric tube heat exchanger using MXene nanofluids, International Journal of Ambient Energy, 2024; 45(1): No. 2375610.

173. Hazra S, Dahiya S, Bijarniya JP, Pramanik S, Sarkar J, Pal BN. Cost-efficient Ag/Ag-TiO₂ coating-based flexible transparent heat reflector for energy-saving smart windows, ACS Applied Energy Materials, 2024; 7(17): 7316-7324.

174. Gupta MN, Yadav HK, Sarkar J, Rajak MK, Paul D, Sarkar A. Revisiting design wind speed and cyclonic factor for east coast of India, Structures, 2024; 69: No. 107330.

175. Gaur SK, Sahoo RR, Sarkar J. Performance optimization of triple tube heat exchanger using aluminum metal foam: A comprehensive numerical investigation, International Communications in Heat and Mass Transfer, 2024; 158: No. 107953.

176. Kumar K, Sarkar J, Mondal SS. Evaluating nanofluid-cooled hybrid Lithium-ion battery thermal management system under abnormal operating scenarios, Journal of Power Sources, 2024; 623: No. 235495.

C. Conference Papers

Sarkar J, Bhattacharyya S, Ramgopal M. Carbon dioxide heat pumps in food processing applications, National conference on State of the art of technologies in mechanical engineering, JNTU, June 29-30, 2004.

Sarkar J, Bhattacharyya S, Ramgopal M. Transcritical carbon dioxide based heat pumps: Process heat applications, Tenth International Refrigeration and Air Conditioning Conference at Purdue, July 12-15, 2004.

Sarkar J, Bhattacharyya S, Ramgopal M. Carbon dioxide based cascade systems for simultaneous refrigeration and heating applications, Sixth IIR Gustav Lorentzen Natural Working fluids Conference at Glasgow, August 29 – September 1, 2004.

Sarkar J, Bhattacharyya S, Ram Gopal M. Carbon dioxide based heat pump dryers in food industry, Int conf Emerging technologies in Agri food engg, IIT Kharagpur, Dec 14-17, 2004.

Sarkar J, Bhattacharyya S, Ramgopal M, Gautam S. Comparison and validation of heat transfer correlations for in-tube cooling of supercritical CO₂, 18^th national & 7^th ISHMT-ASME heat & mass transfer conf, IIT Guwahati, Jan 4-6, 2006.

Sarkar J, Sahoo RR, Bhattacharyya S, Ramgopal M. Trade-off between evaporator and gas cooler heat exchangers of a transcritical CO₂ based heat pumps (TS-13), National conference on Recent Trends in Mechanical Engineering, Sri Jayachamarajendra College of Engg Mysore, Nov 17-18, 2006.

Sarkar J, Bhattacharyya S, Ramgopal M. Transcritical CO₂ heat pump prototype development for simultaneous water cooling and heating, 22^nd IIR Int Congress of Refrigeration, Beijing, China, 2007; ICR07-E2-548.

Sarkar J, Bhattacharyya S, Ramgopal M. Pressure drop for in-tube supercritical co₂ cooling: comparison of correlations and validation, 19^th national & 8^th ISHMT-ASME heat & mass transfer conf, JNTU India, Jan 3-5, 2008.

Sarkar J. Use of vortex tube as expansion device in isobutane based refrigeration system (Paper no. 19), Int Conf Recent Developments in Mechanical Engineering, SUS College of Engg & Tech, Mohali, India, Jan 23-25, 2008.

10.

Sarkar J. Optimization of transcritical CO₂ refrigeration cycle with parallel compression economization (Paper 107), 15th ISME Int Conf Advances in Mechanical Engg, RG Technological University, Bhopal, India, Mar 18-20, 2008.

11.

Sarkar J, Roy S, Agrawal D. Cycle simulation of bio-diesel based direct injection diesel engine (Paper 106), 15th ISME Int Conf Advances in Mechanical Engg, RG Technological University, Bhopal, India, Mar 18-20, 2008.

12.

Sarkar J, Mandal S. CFD modeling and validation of temperature and flow distribution in air-conditioned space, Paper-2153, International Refrigeration and Air Conditioning Conference, Purdue Univ. USA, July 14-17, 2008.

13.

Sarkar J, Bhattacharyya S. Analysis and optimization of an ammonia based transcritical rankine cycle for power generation, POWER2008-60097, Proc of ASME Power 2008, Florida, USA, July 22-24, 2008.

14.

Sarkar J, Bhattacharyya S. Simulation of transcritical CO₂ heat pumps with expander for simultaneous cooling and heating, HPU-14-T2-14, 8^th IIR G Lorentzen Conference on Natural Working fluids, Copenhagen, Sep 7-10, 2008.

15.

Sarkar J, Bhattacharyya S. Optimization of a transcritical N₂O refrigeration/heat pump cycle, NIK-06-T1-14, 8^th IIR G Lorentzen Conference on Natural Working fluids, Copenhagen, Sep 7-10, 2008.

16.

Sarkar J. Performance analyses of novel transcritical CO₂ cycles for combined power and cooling, Proc. of IMECE 2008 (IMECE2008-67156).

17.

Sarkar J, Bhattacharyya S, Ramgopal M. Comparison and validation of in-tube CO₂ boiling heat transfer correlations (Paper 58), 20^th national & 9^th ISHMT-ASME heat & mass transfer conf, IIT Bombay, India, Jan 4-6, 2010.

18.

Sarkar J. Performance of a transcritical N₂O refrigeration system with internal heat exchangers (SP-41), International Conference on Advances in Mechanical Engineering - AME2010, Trivandrum, India, Dec 21-22, 2010.

19.

Tarodiya R, Sarkar J. Cooling of an internal combustion engine using nanofluids: a review (Paper code -2.2), National Conference on Advances in Thermal Engineering, Medi‐Caps Institute of Technology & Management, Indore, Oct 14, 2011, pp. 75-82.

20.

Tiwari AK, Ghosh P, Sarkar J. Modeling of thermal conductivity of Al₂O₃/water nanofluid using neural network, National Conference on Artificial Intelligence & Agents Theory & Applications (AIATA-2011), IT-BHU, Varanasi, Dec 9-11, 2011, pp. 427-430.

21.

Tiwari AK, Mangal S, Ghosh P, Sarkar J. A critical review on the investigations of thermal conductivity and viscosity of nanofluids, 4^th International Congress of Environmental Research, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat, India, 15^th -17^th December 2011, pp. 248.

22.

Sarkar J, Singh S. Performance analysis of nanofluid-cooled microchannel heat sinks (ISHMT_IND_14_006), 21^st National & 10^TH ISHMT-ASME Heat and Mass Transfer Conference, December 27-30, 2011, IIT Madras, India.

23.

Tiwari AK, Ghosh P, Sarkar J. Performance analysis of a flat plate solar collectors using alumina/water nanofluid (ST 39), International Conference on Energy Security, Global Warming and Sustainable Climate ‘SOLARIS-2012’, February 07-09, 2012, IT-BHU, Varanasi, India.

24.

Tiwari AK, Ghosh P, Sarkar J. A review on application of nanofluids in solar heating systems, National Conference on Advances in Mechanical Engineering & Emerging Technologies (AMEET -2012), Paper no. AMEET-054, April 7-8, 2012, KNIT Sultanpur, India.

25.

Tarodiya R, Sarkar J, Tirkey JV. Performance of flat fin tube automotive radiator using nanofluids as coolants, National Conference on Emerging Trends in Mechanical Engineering (ETME – 2012), June 01, 2012, ITM University, Gurgaon, India, p. 422-429.

26.

Sarkar J. Analysis of wavy fin tube automotive radiator using nanofluids as coolants, 2^nd International Conference on Recent Trends in Engineering & Technology, Feb 22-24, 2013, SKBJ College of Engineering, Nashik, India.

27.

Uttam A, Sarkar J. Performance analysis of phase change material based air-conditioning system, Int conf on Emerging trends in Engineering and Technology, April 12-13, 2013, College of Engg, TMU, Muradabad, India.

28.

Tiwari AK, Kumar V, Ghosh P, Sarkar J. Energetic and exergetic performances of Al₂O₃/water nanofluid in plate heat exchanger, 22^nd National & 11^th ISHMT-ASME Heat & Mass Transfer Conference, December 28-31, 2013, IIT Kharagpur, India.

29.

Adil A, Sarkar J, Ghosh P. Theoretical investigations of plate heat exchangers with various geometries using nanofluids, 22^nd National & 11^th ISHMT-ASME Heat & Mass Transfer Conference, Dec 28-31, 2013, IIT Kharagpur, India.

30.

Deo JP, Sarkar J. Heat transfer and entropy generation through internally finned tube (ME123), 4^th Int conf on Emerging trends in Engineering and Technology, April 24-25, 2015, College of Engg, TMU, Muradabad, India.

31.

Joshi D, Sarkar J. Prototype development and testing of air source heat pump water heater for indian climate (ME116), 4^th Int conf on Emerging trends in Engineering and Technology, April 24-25, 2015, College of Engg, TMU, Muradabad, India.

32.

Jakhar SK, Sarkar J. Simulation of plate heat exchanger using nanofluids for refrigeration applications (ME124), 4^th Int conf on Emerging trends in Engineering and Technology, April 24-25, 2015, College of Engg, TMU, Muradabad, India.

33.

Sarkar J, Lal A, Sahoo RR. Suitable natural refrigerants pairs for cascade refrigeration system based on minimum heat exchanger size (IHMTC291), Int ISHMT-ASTFE Heat Mass Transfer Conference, Dec 17-20, 2015, Thiruvananthapuram, India.

34.

Mishra S, Sarkar J. Performance analysis of refrigerants based on ejector expansion technology, International Conference on Research in Mechanical & Production Engineering, January 17, 2016, Chennai, India.

35.

Sahoo RR, Sarkar J. Performance analysis of radiator by using optimum PG brine based nanofluids as coolant (TE159), 1^st Int & 18^th ISME Conference, Feb 23-25, 2017, NIT Warangal, India.

36.

Bhattad A, Sarkar J, Ghosh P. Energetic and exergetic performances of plate heat exchanger using brine based hybrid nanofluid for milk chilling application (TE106), 1^st Int & 18^th ISME Conference, Feb 23-25, 2017, NIT Warangal, India.

37.

Singh SK, Sarkar J. Numerical Simulation of shell and tube type condenser for Rankine power cycle using hybrid nanofluids (TE162), 1^st Int & 18^th ISME Conference, Feb 23-25, 2017, NIT Warangal, India.

38.

Sarkar J. Heat transfer enhancement of microchannel electronic heat sink using supercritical N₂O as coolant (HMTC2017-06-0155), Int ISHMT-ASTFE Heat & Mass Transfer Conference, Dec 27-30, 2017, BITS Pilani, Hyderabad, India.

39.

Kumar V, Verma G, Sarkar J. Numerical analysis of mini/microchannel heat transfer characteristics using different nanofluids (HMTC2017-06-0569), Int ISHMT-ASTFE Heat and Mass Transfer Conference, December 27-30, 2017, BITS Pilani, Hyderabad, India.

40.

Bhattad A, Sarkar J, Ghosh P. Using hybrid nanofluid as secondary refrigerant in plate heat exchanger for milk chilling (HMTC2017-09-1067), International ISHMT-ASTFE Heat and Mass Transfer Conference, December 27-30, 2017, BITS Pilani, Hyderabad, India.

41.

Kashyap S, Sarkar J, Kumar A. Numerical analysis of a novel dual mode evaporative cooler (FMFP2018–700), 7th International & 45th National Conference on Fluid Mechanics & Fluid Power, December 10-12, 2018, IIT Bombay, Mumbai, India.

42.

Kumar V, Sarkar J. Experimental heat transfer and pressure drop of Al₂O₃-graphene hybrid nanofluid in minichannel heat sink, 1^st International Conference on Nanofluids (ICNf2019), 26-28 June 2019, Castelló, Spain.

43.

Saini P, Singh J, Sarkar J. Energy and exergy analysis of U-tube type evacuated tubular collector, International Conference on Energy, Environment & Material Sciences (ICE2M), 01-03 December, 2019, MMMUT, Gorakhpur, India.

44.

Singh A, Sarkar J, Sahoo RR. 1-D transient simulation model of batch type convective heat pump dryer for agricultural product drying and experimental validation (POS-114), 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference, December 28-31, 2019, IIT Roorkee, India.

45.

Sahu M, Sarkar J, Chandra L. Performance of single phase natural circulation loop using hybrid nanofluids for heating above 100^oC (THE-260), 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference, December 28-31, 2019, IIT Roorkee, India.

46.

Kumar V, Sarkar J. Effect of inlet temperature and heat flux on the performance of minichannel using various hybrid nanofluids: Experimental study (THE-311), 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference, December 28-31, 2019, IIT Roorkee, India.

47.

Upadhyay S, Chandra L, Sarkar J. A look-up diagram for selecting a heat transfer fluid in a concentrated solar thermal system (HTE-624), 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference, December 28-31, 2019, IIT Roorkee, India.

48.

Singh SK, Sarkar J. Thermal performance of double pipe heat exchanger with V-cut twisted Tape inserts (THE-625), 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference, December 28-31, 2019, IIT Roorkee, India.

49.

Kashyap S, Sarkar J, Kumar A. Numerical analysis of the combined parallel-counter flow regenerative evaporative cooler (RAC-570), 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference, December 28-31, 2019, IIT Roorkee, India.

50.

Yadav AS, Chandra L, Sarkar J. Development of a comprehensive, 1D steady state heat transfer model for the receiver in PTC, International Conference on Futuristic Technologies, January 22-24, 2021, Panipat, India.

51.

Singh A, Sarkar J, Sahoo RR. Heat and mass transfer characteristics of food chips in intermittent drying (No. 126), 26^th National and 4^th International ISHMT-ASTFE Heat and Mass Transfer Conference, December 17-20, 2021, IIT Madras, India.

52.

Sahu M, Kashyap S, Sarkar J, Chandra L. Evaluation of thermal performance of passive indirect solar water heating system using thermal oil-based hybrid nanofluids (No. 107), 26^th National and 4^th International ISHMT-ASTFE Heat and Mass Transfer Conference, December 17-20, 2021, IIT Madras, India.

53.

Bijarniya JP, Sarkar J. CFD simulation of inside room with rooftop enveloped radiative cooler (No. 56), 26^th National and 4^th International ISHMT-ASTFE Heat and Mass Transfer Conference, December 17-20, 2021, IIT Madras, India.

D. Book Chapters

Sarkar J. Applications of nanofluids in refrigeration and airconditioning (Chapter 3) in Advanced Materials-based Fluids for Thermal Systems (Book), Elsevier, 2024.
Bhattad A, Sarkar J. Refrigeration systems using nanorefrigerants and nanolubricants (Chapter 5) in Nano-refrigerants and Nano-lubricants (Book), Elsevier, 2024.
Sarkar J, Bhattad A. Correlations for predicting properties and theoretical evaluations for nanorefrigerants and nanolubricants (Chapter 12) in Nano-refrigerants and Nano-lubricants (Book), Elsevier, 2024.

E. Invited Magazine Articles

Status of transcritical CO₂ refrigeration and heat pump technology, Cooling India, 2009; Vol. 4, No. 6, p. 120.
Prospects of natural refrigerants in air-conditioning applications, Cooling India, 2009; Vol. 5, No. 4, p. 48.
Various performance improvement options for vapor compression refrigeration system, Cooling India, 2010; Vol. 6, No. 4, p. 42.
Potential of nitrous oxide as a natural refrigerant, Cooling India, 2011; Vol. 7, No. 2, p. 56.
Ejectors for refrigeration applications: An overview, Cooling India, 2011; Vol. 7, No. 5, p. 38.
Nanofluids in refrigeration systems: Applications and challenges, Cooling India, 2011; Vol. 7, No. 9, p. 64.
Natural refrigerants and green refrigeration technology, Cooling India, 2012; Vol. 7, No. 12, p. 58.
Perspectives for natural refrigerants in India, Cooling India, 2012; Vol. 8, No. 4, p. 54.
Thermal insulation of air-conditioned building using phase change materials, Cooling India, 2012; Vol. 8, No. 6. p. 60.
Environmental and personal safety considerations for refrigerant, Cooling India, 2013; Vol. 9, No. 3, p. 30.
Carbon dioxide as refrigerant in air-conditioning systems: Present and future, Cooling India, 2014; Vol. 10, No. 5, p. 52.
Transcritical CO₂ refrigeration & heat pump technologies, Cooling India, 2015; Vol. 10, No. 6, p. 24.
Cooling supermarkets efficiently, Cooling India, 2015; Vol. 10, No. 10, p. 50.
Selection of suitable refrigerant pair for cascade system, Cooling India, 2015; Vol. 11, No. 3, p. 42.
Improving performance of cooling tower, Cooling India, 2016; Vol. 12, No. 1, p. 30.
Next generation refrigerants, Cooling India, 2017; Vol. 12, No. 6, p. 90.
Natural ventilation and clean indoor environment, Cooling India, 2017; Vol. 12, No. 10, p. 48.
Wind driven ventilation: a holistic approach of cooling, Cooling India, 2017; Vol. 13, No. 2, p. 40.
Indirect evaporative air-conditioner, Cooling India, 2018; Vol. 13, No. 6, p. 58.
Phase change material based free cooling, Cooling India, 2018; Vol. 14, No. 3, p. 48.
Next generation secondary refrigerants, Cooling India, 2019; Vol. 14, No. 6, p. 44.
Evaporative cooling technologies for buildings, Cooling India, 2020; Vol. 15, No. 6, p. 32-36.
Passive radiative cooling technology for buildings, ISHRAE Journal, March-april 2021.
Development and performance analysis of a dual-mode evaporative cooler, ISHRAE Journal, 2022; Vol. 25, No. 2, p. 49-54.
Radiative cool coating: Development and testing for building cooling, ISHRAE Journal, 2023; Vol. 26, No. 2, p. 44-54.

1. Developed a transcritical CO₂ heat pump for simultaneous water cooling and heating.

2. Developed a portable dehydrator device for household applications.

3. Developed a polymer-particle composite radiative cooling coating.

4. Developed a polymer-ceramic composite-coated daytime radiative water cooler system.

5. Developed the Bureau of Indian Standards code for the estimation of Cyclonic factor (k₄).

6. Developed a film for daylight radiative cooling and a method of preparation thereof.

7. Developed an organic Rankine cycle for NPP waste heat recovery.