Exergoeconomic Analysis of Steam Turbine Driving Vapor Compression Refrigeration System in an Existing Coal-Fired Power Plant

  • Mehmet TontuEmail author
  • Besir Sahin
  • Mehmet Bilgili
Research Article - Mechanical Engineering


The exergoeconomic analysis was conducted theoretically for a steam turbine driving vapor compression refrigeration system using R134a, R410a, R407c and R717 in this study. Dual-purpose system was designed by eliminating the expansion valve to fulfill the demand for the cooling load of the steam power plant. Primarily steam turbine was investigated by changing turbine inlet parameters. Afterward, the effect of input parameters of the steam turbine on the cooling load, the coefficient of performance (COP), the exergy efficiency of vapor compression cycle (VCC) and equipment, both the exergy destruction ratio and the exergy efficiency was determined. Among all examined working fluids, R134a was the best candidate from thermodynamic and thermoeconomic viewpoints. The COP values were determined to be 2.73, 2.29, 1.8 and 1.15 for R134a, R410a, R407c and R717, respectively. Also, the exergy efficiencies of the vapor compression refrigeration (VCR) system were found to be 18.61%, 13.93%, 14.97% and 10.01% for R134a, R410a, R407c and R717, respectively. Conversely, the general exergy efficiency of the whole coal-fired plant was 39.1%. As a consequence of integrating VCC, overall exergy efficiencies of the complete system were 39.36%, 39.32%, 39.27% and 39.21% for four different working fluids, respectively.


Efficiency Exergy Exergoeconomic Steam turbine Vapor compression 

List of symbols

\( \dot{C} \)

Cost rate ($/h)

\( \dot{Z} \)

Component cost rate ($/h)

\( \dot{m} \)

Mass flow rate (kg/s)


Area (m2)


Unit cost rate ($/kJ)


Energy (kJ)


High pressure


Intermediate pressure


Exergy efficiency (%)


Pressure (bar)


Vapor compression refrigeration


Work (kW)


Exergy (kW)


Exergy destruction ratio (%)


Component procurement cost ($/h)


Pressure differences (bar)

















Exergy-related stream


kth component










Steam power plant




Expansion valve


Vapor compression refrigeration




Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.



The authors would like to thank the office of Scientific Research Projects of Cukurova. University for funding this Project under Contract No: FDK-2016-7207.


  1. 1.
    Wang, H.; Peterson, R.; Harada, K.; Miller, E.; Ingram-Goble, R.; Fisher, L.; Yih, J.; Ward, C.: Performance of a combined organic rankine cycle and vapor compression cycle for heat activated cooling. Energy 36, 447–458 (2011)CrossRefGoogle Scholar
  2. 2.
    Wang, H.; Peterson, R.; Herron, T.: Design study of configurations on system COP for a combined ORC (organic Rankine cycle) and VCC (vapor compression cycle). Energy 36, 4809–4820 (2011)CrossRefGoogle Scholar
  3. 3.
    Saleh, B.: Parametric and working fluid analysis of a combined organic Rankine-vapor compression refrigeration system activated by low-grade thermal energy. J. Adv. Res. 7, 651–660 (2016)CrossRefGoogle Scholar
  4. 4.
    Kim, K.H.; Perez-Blanco, H.: Performance analysis of a combined organic Rankine cycle and vapor compression cycle for power and refrigeration cogeneration. Appl. Therm. Eng. 91, 964–974 (2015)CrossRefGoogle Scholar
  5. 5.
    Aphornratana, S.; Sriveerakul, T.: Analysis of a combined Rankine-vapour-compression refrigeration cycle. Energy Convers. Manag. 51, 2557–2564 (2010)CrossRefGoogle Scholar
  6. 6.
    Deng, N.; Zhou, M.; Zhang, Y.; Zhang, Z.; Zhang, Y.; Wang, H.; Li, X.: Experimental research of a new steam heat pump system for recovering industrial waste heat. J. Energy Eng. 143, 04017035 (2017)CrossRefGoogle Scholar
  7. 7.
    Lu, Y.; Wang, Y.; Dong, C.; Wang, L.; Roskilly, A.P.: Design and assessment on a novel integrated system for power and refrigeration using waste heat from diesel engine. Appl. Therm. Eng. 91, 591–599 (2015)CrossRefGoogle Scholar
  8. 8.
    Demirkaya, G.; Padilla, R.V.; Goswami, D.Y.: A review of combined power and cooling cycles. WIREs Energy Environ. 2, 534–547 (2013)CrossRefGoogle Scholar
  9. 9.
    Esfahani, I.J.; Kang, Y.T.; Yoo, C.: A high efficient combined multi-effect evaporation–absorption heat pump and vapor-compression refrigeration part 1: energy and economic modeling and analysis. Energy 75, 312–326 (2014)CrossRefGoogle Scholar
  10. 10.
    Esfahani, I.J.; Yoo, C.: A highly efficient combined multi-effect evaporation–absorption heat pump and vapor-compression refrigeration part 2: thermoeconomic and flexibility analysis. Energy 75, 327–337 (2014)CrossRefGoogle Scholar
  11. 11.
    Saleh, S.B.; Orfi, J.; Alabdulkarem, A.: Optimization of a multistage vapor-compression refrigeration system for various refrigerants. Appl. Therm. Eng. 136, 84–96 (2018)CrossRefGoogle Scholar
  12. 12.
    Maurya, S.; Patel, D.: Combined refrigeration cycle for thermal power plant using low grade waste steam. Int. J. Eng. Res. Appl. 4, 60–63 (2014)Google Scholar
  13. 13.
    Yılmaz, A.: Transcritical organic Rankine vapor compression refrigeration system for intercity bus air-conditioning using engine exhaust heat. Energy 82, 1047–1056 (2015)CrossRefGoogle Scholar
  14. 14.
    Bounefour, O.; Ouadha, A.: Thermodynamic analysis and working fluid optimization of a combined ORC–VCC system using waste heat from a marine diesel engine. In: Proceedings of the ASME 2014 International Mechanical Engineering Congress and Exposition IMECE2014 November 14–20, 2014, Montreal, Quebec, CanadaGoogle Scholar
  15. 15.
    Zheng, D.; Chen, B.; Qi, Y.; Jin, H.: Thermodynamic analysis of a novel absorption power/cooling combined-cycle. Appl. Energy 83, 311–323 (2006)CrossRefGoogle Scholar
  16. 16.
    Frimodt, C.; Mygind, K.F.: Integration of solid oxide fuel cells and absorption cooling units. Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark. Master’s thesis (2010)Google Scholar
  17. 17.
    Al-Sulaiman, F.A.; Dincer, I.; Hamdullahpur, F.: Exergy analysis of an integrated solid oxide fuel cell and organic Rankine cycle for cooling, heating and power production. J. Power Sources 195, 2346–2354 (2010)CrossRefGoogle Scholar
  18. 18.
    Elakhdar, M.; Tashtoush, B.M.; Mehdi, M.; Kairouani, L.: Thermodynamic analysis of a novel ejector enhanced vapor compression refrigeration (EEVCR) cycle. Energy 163, 1217–1230 (2018)CrossRefGoogle Scholar
  19. 19.
    Zamfirescu, C.; Dincer, I.: Thermodynamic analysis of a novel ammonia–water trilateral Rankine cycle. Thermochim. Acta 477, 7–15 (2008)CrossRefGoogle Scholar
  20. 20.
    Moles, F.; Navarro-Esbrí, J.; Peris, B.; Mota-Babiloni, A.; Kontomaris, K.K.: Thermodynamic analysis of a combined organic Rankine cycle and vapor compression cycle system activated with low temperature heat sources using low GWP fluids. Appl. Therm. Eng. 87, 444–453 (2015)CrossRefGoogle Scholar
  21. 21.
    Gill, J.; Singh, J.: Energy analysis of vapor compression refrigeration system using mixture of R134a and LPG as refrigerant. Int. J. Refrig. 84, 287–299 (2017)CrossRefGoogle Scholar
  22. 22.
    Chang, H.; Wana, Z.; Zheng, Y.; Chen, X.; Shu, S.; Tu, Z.; Chan, S.H.: Energy analysis of a hybrid PEMFC-solar energy residential micro-CCHP system combined with an organic Rankine cycle and vapor compression cycle. Energy Convers. Manag. 142, 374–384 (2017)CrossRefGoogle Scholar
  23. 23.
    Peris, B.; Navarro-Esbrí, J.; Moles, F.; Collado, R.; Mota-Babiloni, A.: Performance evaluation of an organic rankine cycle (ORC) for power applications from low grade heat sources. Appl. Therm. Eng. 75, 763–769 (2015)CrossRefGoogle Scholar
  24. 24.
    Hegazy, A.; Rothan, Y.; Engeda, A.: Feasibility of using vapor compression refrigeration system for cooling steam plant condenser. Appl. Therm. Eng. 106, 570–578 (2016)CrossRefGoogle Scholar
  25. 25.
    Bounefour, O.; Ouadha, A.: Performance improvement of combined organic Rankine-vapor compression cycle using serial cascade evaporation in the organic cycle. Energy Proc. 139, 248–253 (2017)CrossRefGoogle Scholar
  26. 26.
    Tiwari, A.; Gautam, M.; Chauhan, K.; Fartyal, G.; Singh, S.; Chahar, V.K.: Effect of various operating conditions on the cooling performance of transcritical organic Rankine refrigeration system. Int. J. Curr. Res. 9, 51642–51645 (2017)Google Scholar
  27. 27.
    Zhang, X.R.; Zhang, Y.: Experimental investigation on heat recovery from condensation of thermal power plant exhaust steam by a CO2 vapor compression cycle. Int. J. Energy Res. 37, 1908–1916 (2013)CrossRefGoogle Scholar
  28. 28.
    Dubey, M.; Rajput, S.P.S.; Nag, P.K.; Misra, R.D.: Energy analysis of a coupled power-refrigeration cycle. J. Power Energy Part A 224, 749–759 (2016)CrossRefGoogle Scholar
  29. 29.
    Su, Y.F.; Chen, C.K.: Application of exergy method to a two-stage irreversible combined refrigeration system. Proc. Inst. Mech. Eng. C J. Mech. Eng. Sci. 221, 807–813 (2007)CrossRefGoogle Scholar
  30. 30.
    Tiedeman, J.S.; Sherif, S.A.: Optimum coefficient of performance and exergetic efficiency of a two-stage vapor compression refrigeration system. Proc. Inst. Mech. Eng. C J. Mech. Eng. Sci. 217, 1027–1037 (2003)CrossRefGoogle Scholar
  31. 31.
    Dincer, I.; Kanoglu, M.: Refrigerations System and Analysis. Wiley, The Atrium (2010)Google Scholar
  32. 32.
    Bejan, A.; Tsatsaronis, G.; Moran, M.: Thermal Design and Optimization. Wiley, Canada (1996)zbMATHGoogle Scholar
  33. 33.
    Dincer, I.; Rosen, M.A.; Pouria, A.: Optimization of Energy Systems. Wiley, The Atrium (2017)CrossRefGoogle Scholar
  34. 34.
    Mbarek, W.F.; Thar, K.; Ammar, B.B.: Energy efficiencies of three configurations of two-stage vapor compression refrigeration systems. Arab. J. Sci. Eng. 41, 2465–2477 (2016)CrossRefGoogle Scholar
  35. 35.
    Bilgili, M.; Ozbek, A.; Yasar, A.; Simsek, E.; Sahin, B.: Effect of atmospheric temperature on exergy efficiency and destruction of a typical residential split air-conditioning system. Int. J. Exergy 20, 66–84 (2016)CrossRefGoogle Scholar
  36. 36.
    Tosun, E.; Bilgili, M.; Tuccar, G.; Yasar, A.; Aydin, K.: Exergy analysis of an inter-city bus air-conditioning system. Int. J. Exergy 20(4), 445–464 (2016)CrossRefGoogle Scholar
  37. 37.
    Ozbek, A.: Exergy characteristics of a ceiling-type residential air conditioning system operating under different climatic conditions. J. Mech. Sci. Technol. 30(11), 5247–5255 (2016)CrossRefGoogle Scholar
  38. 38.
    Ozbek, A.: Energy and exergy analysis of a ceiling-type air conditioning system operating with different refrigerants. J. Eng. Res. 4(3), 36–54 (2016)Google Scholar
  39. 39.
    Yataganbaba, A.; Kilicarslan, A.; Kurtbas, I.: Exergy analysis of R1234yf and R1234ze as R134a replacements in a two evaporator vapor compression refrigeration system. Int. J. Refrig. 60, 26–37 (2015)CrossRefGoogle Scholar
  40. 40.
    Reddy, V.S.; Panwar, N.L.; Kaushik, S.C.: Exergetic analysis of a vapor compression refrigeration system with R134a, R143a, R152a, R404A, R407C, R410A, R502 and R507A. Clean Technol. Environ. Policy 14, 47–53 (2012)CrossRefGoogle Scholar

Copyright information

© King Fahd University of Petroleum & Minerals 2019

Authors and Affiliations

  1. 1.Mechanical Engineering Department, Engineering FacultyCukurova UniversityAdanaTurkey
  2. 2.Mechanical Engineering Department, Ceyhan Engineering FacultyCukurova UniversityAdanaTurkey

Personalised recommendations