Applying Different Working Fluids in a Combined Power and Ejector Refrigeration Cycle with Low Temperature Heat Sources

A power and cooling cycle, which combines the organic Rankine cycle and the ejector refrigeration cycle supplied by waste heat energy sources, is discussed in this paper. 13 working fluids including wet, dry, and isentropic fluids are studied in order to find their performances on the combined cycle. Various operating conditions’ effects on the proposed cycle are examined by fixing power/refrigeration ratio. According to the results, dry and isentropic fluids have better performance compared with wet fluids.





References:
[1] Y. Dai, J. Wang, and L. Gao, “Exergy analysis, parametric analysis and optimization for a novel combined power and ejector refrigeration cycle,” J. Appl Therm Eng, 29, 1983–1990, 2009.
[2] J. Wang, Y. Dai, and Z. Sun, “A theoretical study on a novel combined power and ejector refrigeration cycle,” Int. J. Ref. 32, 1186-1194, 2009.
[3] M. M. Rashidi, O. Anwar Bég, A. Basiri Parsa, and F. Nazari, “Analysis and optimization of a transcritical power cycle with regenerator using artificial neural networks and genetic algorithms,” J Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy. 225, 701-717, 2011.
[4] E. Cayer, N. Galanis, M. Desilets, H. Nesreddine, and P. Roy, “Analysis of a carbon dioxide transcritical power cycle using a low temperature source,” 2009 J Applied Energy. 86, 1055–1063, 2009.
[5] B. L. Lostec, J. Millette and N. Galanis, “Finite time thermodynamics study and exergetic analysis of ammoniaewater absorption systems,” International Journal of Thermal Sciences. 49, 1264-1276, 2010.
[6] E. Cayer, N. Galanis, and H. Nesreddine, “'Parametric study and optimization of a transcritical power cycle using a low temperature source,” J Applied Energy. 87, 1349–1357, 2010.
[7] P. Roy, M. De´ silets, N. Galanis, H. Nesreddine, and E. Cayer, “Thermodynamic analysis of a power cycle using a low-temperature source and a binary NH3–H2O mixture as working fluid,” 2010 International Journal of Thermal Sciences. 49, 48–58, 2010.
[8] S. A. Klein, Engineering equation solver version 7.171 (McGraw Hill), 2004.