profile_Jahar Sarkar

 

Dr. Jahar Sarkar

Assistant Professor, Mechanical Engineering

Email:            js_iitkgp@yahoo.co.in, jsarkar.mec@itbhu.ac.in

Phone:           09919787557 (Mob)

Qualification: Ph.D. (IIT Kharagpur), M.Tech. (IIT Khragpur), B.E. (BESU, Shibpur)

Area of Interests

Heat Transfer, Refrigeration, Heat pump, Air-conditioning, Irreversible Thermodynamics, Nanofluids

M.Tech./M.Tech.(IDD) Project Guided: 11

Achievements : Recognitions:

Ø  Editorial Board Member of the Journal ‘Energy Science and Technology’.

Ø  Three papers were selected as one of the 'ScienceDirect TOP 25 Hottest Articles' and two papers as Top-10 cited articles published during last 5 years.

Ø  Reviewed more than 15 manuscripts for International Journals.

Ø  Biography included in Marquis Who’s Who in the World, 2010.

Ø  Written 5 invited articles in Indian magazine.

Research Papers: 37 Journal papers & 20 Conference papers

Journal Papers published with last five years:

  1. 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.
  2. Sarkar J, Bhattacharyya S, Ramgopal M. CO2 heat pump dryer: Part 1. Mathematical model and simulation, Drying Technology, 2006; 24(12): 1583-1591.
  3. Sarkar J, Bhattacharyya S, Ramgopal M. CO2 heat pump dryer: Part 2. Validation and simulation results, Drying Technology, 2006; 24(12): 1593-1600.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. Sarkar J. Optimization of ejector-expansion transcritical CO2 heat pump cycle, Energy, 2008; 33(9): 1399-1406.
  10. Sarkar J, Bhattacharyya S, Ramgopal M. Thermodynamic optimization of irreversible heat pumps, Archives of Thermodynamics, 2008; 29(3): 59-68.
  11. 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.
  12. Sarkar J, Bhattacharyya S, Ramgopal M. Irreversibility minimization of heat exchangers for transcritical CO2 systems, Int J Thermal Sc, 2009; 48(1): 146-153.
  13. 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.
  14. Sarkar J. DI Diesel engine cycle simulation and validation, IE (India) Journal-MC, 2009; 89(MC/4): 13-17.
  15. 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.
  16. 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.
  17. Sarkar J, Bhattacharyya S. Optimization of recompression S-CO2 power cycle with reheating, Energy Conv Magmt, 2009; 50(8): 1939-1945.
  18. Sarkar J. Performance characteristics of natural refrigerants based ejector expansion refrigeration cycles, Proc IMechE; Pt. A: J Power Energy, 2009; 223(5): 543-550.
  19. Sarkar J. Cycle parameter optimization of vortex tube expansion transcritical CO2 system, Int J Thermal Sc, 2009; 48(9): 1823-1828.
  20. 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.
  21. Sarkar J. Second law analysis of supercritical CO2 recompression Brayton cycle, Energy, 2009; 34(9): 1172-1178.
  22. Sarkar J, Bhattacharyya S. Thermodynamic analyses and optimization of a transcritical N2O cycle, Int Journal Refrigeration, 2010; 33(1): 33-40.
  23. Sarkar J. Geometric parameter optimization of ejector expansion refrigeration cycle with natural refrigerants, Int J Energy Research, 2010; 34(1): 84-94.
  24. Sarkar J. Review on cycle modifications of transcritical CO2 refrigeration and heat pump systems, J Adv Research Mechanical Engg, 2010; 1(1): 22-29.
  25. 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.
  26. 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.
  27. Sarkar J, Agrawal N. Performance optimization of transcritical CO2 cycle with parallel compression economization, Int J Thermal Sc, 2010; 49(5): 838-843.
  28. 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.
  29. Sarkar J. Thermodynamic analyses and optimization of a recompression N2O Brayton power cycle, Energy, 2010; 35(8): 3422-3428.
  30. Sarkar J. Performance characteristics of refrigeration cycle with parallel compression economization, Int J Energy Research, 2010; 34(13): 1205-1214.
  31. 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.
  32. Sarkar J, A critical review on convective heat transfer correlations of nanofluids, Renewable & Sustainable Energy Reviews, 2011; 15(6): 3271-3277.

 

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