jsarkar.mec's picture
Dr. Jahar Sarkar
Associate Professor
Department of Mechanical Engineering, IIT(BHU)
jsarkar.mec@iitbhu.ac.in
9919787557
Area of Interest: 
Heat Transfer, Thermodynamics, Refrigeration, Heat pump, Air-conditioning, Nanofluids

Ph.D. in Mechanical Engineering (I.I.T. Kharagpur, 2006)
Achievements : Recognitions
    Editorial Board Member of  ‘Energy Science and Technology’,
                                           ‘American Journal of Engineering and Applied Sciences’
                                           ‘International Journal of Applied Engineering Research’
    Various research papers are as Top downloaded and Top cited articles.
    Biography included in Marquis Who’s Who in the World, 2010.

Total Journal Paper Published: 90
Total Conference Paper Published: 40
Google Scholar Citations: 2810

Selected research papers with Citations:
1. 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. [256]
2. Sarkar J, A critical review on convective heat transfer correlations of nanofluids, Renewable and Sustainable Energy Reviews, 2011; 15(6): 3271-3277. [192]
3. Sarkar J, Ghosh P, Adil A. A Review on hybrid nanofluids: Recent research, development and applications, Renewable and Sustainable Energy Reviews, 2015; 43: 164-177. [151]
4. 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. [133]
5. 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. [
127]
6. Sarkar J. Ejector Enhanced Vapor Compression Refrigeration and Heat Pump Systems - A Review, Renewable and Sustainable Energy Reviews, 2012; 16(9): 6647-6659. [123]
7. Sarkar J. Optimization of ejector-expansion transcritical CO2 heat pump cycle, Energy, 2008; 33(9): 1399-1406. [112]

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

Upcoming STC: Efficient Energy Conversion in Harmony with Environment, 29 Oct – 02 Nov, 2018.

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; Associate Professor: 2016 - date.

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.

  • Advanced Thermodynamics (M Tech)
  • Advanced Fluid Mechanics (M Tech)
  • Advanced Heat & Mass Transfer (M Tech)
  • Conduction and Radiation (M Tech)
  • Gas Dynamics (M Tech)
  • Design of Thermal Systems (M Tech)
  • Refrigeration & Air-conditioning (B Tech)
  • Heat & Mass Transfer (B Tech)
  • Engineering Thermodynamics (B Tech)
  • Energy Management (B Tech)

Course developed:
ME-533: Conduction & Radiation;
ME-543: Design of Thermal System; ME-537: Advanced Refrigeration Systems                                                                                      

Ph.D. Thesis Guided

1. Arun Kr. Tewari, 'Performance analysis of plate heat exchanger using nanofluids', 2010-13 (Completed)
2. Rashmi Rekha Sahoo, 'Performance improvements in automotive cooling system', 2013-17 (Completed)
3. Vivek Kumar, 2015-ongoing.
4. Atul Bhattad, 2015-ongoing.
5. Sumit Kr. Singh, 2015-ongoing.
6. Akhilesh Kr. Singh, 2017-ongoing
7. Sarvesh Kashyap, 2017-ongoing
8. Prashant Saini, 2017-ongoing
9. Mayaram Sahu, 2018-ongoing
 
 

MTech thesis: 32

  • Co-investigator of consultancy project ‘Feasibility study of co-firing in pulverized coal boiler with agrofuels‘, Hindalco Industries Limited (Power division), 2013.
  • Co-investigator of sprouting grant project ‘Facilities to measure liquid thermo-physical properties’, IIT (BHU) Varanasi, 2015.
  • Principal Investigator of Institute Research Project ‘Heat Transfer and Flow Characteristics of Hybrid Nanofluids in Mini-Micro-channels’, IIT (BHU) Varanasi, 2016-ongoing.
  • Principal Investigator of project ‘Development of Eco-friendly Heat Pump Dryer for Bio Applications’, Design Innovation Centre - BHU & IIT(BHU) Varanasi, 2017-ongoing.

Journal Papers Published in 2018

  1. Sarkar J. Generalized pinch point design method of subcritical-supercritical organic Rankine cycle for maximum heat recovery, Energy, 2018; 143: 141-150.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. Sarkar J. Improving thermal performance of microchannel electronic heat sink using supercritical CO2 as coolant, Thermal Science, 2017; press.

Journal Papers published upto 2017

  1. Sarkar J, Bhattacharyya S, Ramgopal M. Optimization of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications. Int J Refrigeration 2004; 27(8): 830-838.
  2. Sarkar J, Bhattacharyya S, Ramgopal M. Transcritical CO2 heat pump systems: Exergy analysis including heat transfer and fluid flow effects, Energy Conv Magmt, 2005; 46(13-14): 2053-2067.
  3. Bhattacharyya S, Mukhopadyay S, Kumar A, Khurana, Sarkar J. Optimization of a CO2-C3H8 cascade system for refrigeration and heating, Int J Refrigeration, 2005; 28(8): 1284-1292.
  4. Sarkar J, Bhattacharyya S, Ramgopal M. Simulation of a transcritical CO2 heat pump cycle for simultaneous cooling and heating applications, Int J Refrigeration, 2006; 29(5): 735-743.
  5. Sarkar J, Bhattacharyya S, Ramgopal M. CO2 heat pump dryer: Part 1. Mathematical model and simulation, Drying Technology, 2006; 24(12): 1583-1591.
  6. Sarkar J, Bhattacharyya S, Ramgopal M. CO2 heat pump dryer: Part 2. Validation and simulation results, Drying Technology, 2006; 24(12): 1593-1600.
  7. Sarkar J, Bhattacharyya S, Ramgopal M. Natural refrigerant-based subcritical and transcritical cycles for high temperature heating, Int J Refrigeration, 2007; 30(1): 3-10.
  8. Agrawal N, Bhattacharyya S, Sarkar J. Optimization of two-stage transcritical carbon dioxide heat pump cycles, Int J Thermal Sc, 2007; 46(2): 180-187.
  9. Sarkar J, Bhattacharyya S. Overall conductance and heat transfer area minimization of refrigerators and heat pumps with finite heat reservoirs, Energy Conv Magmt, 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 Conv Magmt, 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, Int J 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, Int J Refrigeration, 2008 31(7): 1207-1213.
  15. Sarkar J, Bhattacharyya S, Ramgopal M. Irreversibility minimization of heat exchangers for transcritical CO2 systems, Int J Thermal Sc, 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, Int J 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, Int J Thermal Sc, 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, Int Journal Refrigeration, 2009; 32(5): 1077-1084.
  20. Sarkar J, Bhattacharyya S. Optimization of recompression S-CO2 power cycle with reheating, Energy Conv Magmt, 2009; 50(8): 1939-1945.
  21. Sarkar J. Performance characteristics of natural refrigerants based ejector expansion refrigeration cycles, Proc IMechE; Pt. A: J Power Energy, 2009; 223(5): 543-550.
  22. Sarkar J. Cycle parameter optimization of vortex tube expansion transcritical CO2 system, Int J Thermal Sc, 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, Int Journal Refrigeration, 2010; 33(1): 33-40.
  26. Sarkar J. Geometric parameter optimization of ejector expansion refrigeration cycle with natural refrigerants, Int J 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, Int J Thermal Sc, 2010; 49(5): 838-843.
  31. Sarkar J. Performance characteristics of multi-evaporator transcritical CO2 refrigeration cycles with hybrid compression/ejection, IMechE, Part A: J Power 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, Int J 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 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 CO2 heat 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.

Conference Papers

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. Sarkar J, Bhattacharyya S, Ramgopal M, Gautam S. Comparison and validation of heat transfer correlations for in-tube cooling of supercritical CO2, 18th national & 7th ISHMT-ASME heat & mass transfer conf, IIT Guwahati, Jan 4-6, 2006.
  6. 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.
  7. Sarkar J, Bhattacharyya S, Ramgopal M. Transcritical CO2 heat pump prototype development for simultaneous water cooling and heating, 22nd IIR Int Congress of Refrigeration, Beijing, China, 2007; ICR07-E2-548.
  8. Sarkar J, Bhattacharyya S, Ramgopal M. Pressure drop for in-tube supercritical co2 cooling: comparison of correlations and validation, 19th national & 8th ISHMT-ASME heat & mass transfer conf, JNTU India, Jan 3-5, 2008.
  9. 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, 8th 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, 8th 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), 20th national & 9th 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, 4th International Congress of Environmental Research, Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat, India, 15th -17th December 2011, pp. 248.
  22. Sarkar J, Singh S. Performance analysis of nanofluid-cooled microchannel heat sinks (ISHMT_IND_14_006), 21st National & 10TH 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, 2nd 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, 22nd National & 11th 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, 22nd National & 11th 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), 4th 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), 4th 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), 4th 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), 1st Int & 18th 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), 1st Int & 18th 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), 1st Int & 18th 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.

 Invited Magazine Articles

  1. Status of transcritical CO2 refrigeration and heat pump technology, Cooling India, 2009; Vol. 4, No. 6, p. 120.
  2. Prospects of natural refrigerants in Air-conditioning applications, Cooling India, 2009; Vol. 5, No. 4, p. 48.
  3. Various performance improvement options for vapor compression refrigeration system, Cooling India, 2010; Vol. 6, No. 4, p. 42.
  4. Potential of nitrous oxide as a natural refrigerant, Cooling India, 2011; Vol. 7, No. 2, p. 56.
  5. Ejectors for refrigeration applications: An overview, Cooling India, 2011; Vol. 7, No. 5, p. 38.
  6. Nanofluids in Refrigeration Systems: Applications and Challenges, Cooling India, 2011; Vol. 7, No. 9, p. 64.
  7. Natural refrigerants and green refrigeration technology, Cooling India, 2012; Vol. 7, No. 12, p. 58.
  8. Perspectives for natural refrigerants in India, Cooling India, 2012; Vol. 8, No. 4, p. 54.
  9. Thermal insulation of air-conditioned building using phase change materials, Cooling India, 2012; Vol. 8, No. 6. p. 60.
  10. Environmental and personal safety considerations for refrigerant, Cooling India, 2013; Vol. 9, No. 3, p. 30.
  11. Carbon dioxide as Refrigerant in Air-Conditioning Systems: Present and Future, Cooling India, 2014; Vol. 10, No. 5, p. 52.
  12. Transcritical CO2 Refrigeration & Heat Pump Technologies, Cooling India, 2015; Vol. 10, No. 6, p. 24.
  13. Cooling Supermarkets Efficiently, Cooling India, 2015; Vol. 10, No. 10, p. 50.
  14. Selection of Suitable Refrigerant Pair for Cascade System, Cooling India, 2015; Vol. 11, No. 3, p. 42.
  15. Improving performance of cooling tower, Cooling India, 2016; Vol. 12, No. 1, p. 30.
  16. Next generation refrigerants, Cooling India, 2017; Vol. 12, No. 6, p. 90.
  17. Natural Ventilation and Clean Indoor Environment, Cooling India, 2017; Vol. 12, No. 10, p. 48.
  18. Wind Driven Ventilation: A Holistic Approach of Cooling, Cooling India, 2017; Vol. 13, No. 2, p. 40.
  19. Indirect Evaporative Air-Conditioner, Cooling India, 2018; Vol. 13, No. 6, p. 58.

Invited lectures in various Conferences, STCs and FDPs in India.

Organized Faculty Development Program on ‘Nanofluid and its Engineering Applications’ (NFEA-2017), TLC, IIT Varanasi, November 06-11, 2017.

Upcoming QIP SHORT TERM COURSE on Efficient Energy Conversion in Harmony with Environment, 29 Oct – 02 Nov, 2018.

Lab-incharge of Heat Transfer, Refrigeration & airconditioning

Incharge of Departmental Time Table

Member of DPGC