Thermodynamic Evaluation of PTC based Organic Rankine Cycle for Power & Cooling


  •   Devendra Kumar Gupta

  •   Rajesh Kumar

  •   Naveen Kumar


The paper focuses on thermodynamic evaluation (first and second law) for PTC based organic Rankine cycle with single ejector (EORC) and organic Rankine cycle with double ejector (DEORC) using refrigerant R141b as working fluid and Therminol VP1 as heat transfer fluid. Thermal energy storage tanks are used to store the PTC heat, which provides the continuous net power output and cooling during insufficient solar radiation. The thermodynamic evaluation is carried out to evaluate the performance of PTC field based EORC & DEORC system which produces power and cooling simultaneously. Parametric analyses of EORC and DEORC show that inlet temperature and pressure of turbine at various extraction ratio has the significant effect on first & second law efficiency and cooling to power ratio of this system. It is also found that, annual average energy output of EORC and DEORC is 4710.57 MWh and 5104.97 MWh respectively while annual average exergy output of EORC and DEORC is 3893.86 MWh and 3436.27 MWh respectively.

Keywords: Solar energy, PTC Field, ejector, first law efficiency, second law efficiency, entrainment ratio, EORC, DEORC, Cooling/Power Ratio


M.T. Dunham, and B.D. Iverson, “High-efficiency thermodynamic power cycles for concentrated solar power systems,”Renewable and Sustainable Energy Reviews, Vol. 30, pp. 758-770, 2014.

S.K. Tyagi, S. Wang, M.K. Singhal, S.C. Kaushik, and S.R. Park, “Exergy analysis and parametric study of concentrating type solar collectors,”International Journal of Thermal Sciences, Vol. 46, pp. 1304-1310, 2007.

R.V. Padilla, A. Fontalvo, G. Demirkaya, A. Mrtinez, and A.G. Quiroga, “Exergy analysis of parabolic trough solar receiver,” Applied Thermal Engineering, Vol. 67, pp. 579-586, 2014.

U. Herrmann, B. Kelly, and H. Price, “Two tank molten salt storage for parabolic trough solar power plants,”Energy, Vol. 29, pp. 883-893, 2004.

N.B. Desai, S. Bandyopadhyay J.K. Nayak, R. Banerjee, and S.B. Kedare, “Simulation of 1MWe Solar Thermal Power Plant,” ISES Solar World Congress, 2013.

C. Tzivanidis, E. Bellos, and K.A. Antonopoulos, “Energetic and financial investigation of a stand-alone solar-thermal organic Rankine cycle power plant,” Energy Conversion and Management, Vol. 126, pp. 421-433, 2016.

G.K. Alexis, “Performance parameters for the design of a combined refrigeration and electrical power cogeneration system,” International Journal of Refrigeration, Vol. 30, pp. 1097–1103, 2007.

B. Zheng, and Y.W. Weng, “A combined power and ejector refrigeration cycle for low temperature heat sources,” Solar Energy, Vol. 84, pp. 784-791, 2010.

M.M. Rashidi, O.A. Beg, and A. Aghagoli, “Utilization of waste heat in combined power and ejector refrigeration for a solar energy source,” International Journal of Appl. Math and Mech., Vol. 8(17), pp. 1-16, 2012.

A. Habibzadeh, M.M. Rashidi, and N. Galanis, “Analysis of a combined power and ejector-refrigeration cycle using low temperature heat,” Energy Conversion and Management, Vol. 65, pp. 381-391, 2013.

X. Chen, Y. Su, S. Omer, and S. Riffat, “Theoretical investigations on combined power and ejector cooling system powered by low-grade energy source,” International Journal of Low-Carbon Technologies Advance Access, Vol. 0, pp. 01-10, 2015.

J. Wang, Y. Dai, and L. Gao, “Parametric analysis and optimization for a combined power and refrigeration cycle,” Applied Energy, Vol.85, pp. 1071-1085, 2008.

Y. Dai, J. Wang, and L. Gao, “Exergy analysis, parametric analysis and optimization for a novel combined power and ejector refrigeration cycle,”Applied Thermal Engineering, Vol. 29, pp. 1983-1990, 2009.

D.K. Gupta, R. Kumar, and N. Kumar, “First and second law analysis of solar operated combined Rankine and ejector refrigeration cycle,” Applied Solar Energy, Vol. 50(2), pp. 113-121, 2014.

B.K. Agrawal, and M.N. Karimi, “Parametric, exergy and energy analysis of low grade energy and ejector refrigeration cycle,” International Journal of Sustainable Building Technology and Urban Development, Vol. 4(2), pp. 170-176, 2013.

NIST Standard Reference Database 23, 1998, NIST Thermodynamic and Transport Properties of Refrigerants and Refrigerants Mixtures REFPROP, Version 6.01.

R. Petela, “Exergy of undiluted thermal radiation”, Solar Energy, Vol.74 (6), pp. 469-488, 2003.


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How to Cite
Gupta, D., Kumar, R. and Kumar, N. 2017. Thermodynamic Evaluation of PTC based Organic Rankine Cycle for Power & Cooling. European Journal of Engineering and Technology Research. 2, 1 (Jan. 2017), 51-58. DOI: