Dr. Rohan Iyer
Independent Researcher
India
Abstract
This manuscript presents a comprehensive thermodynamic analysis of Organic Rankine Cycles (ORCs) tailored for low-temperature heat recovery applications. The study investigates working fluids, cycle configurations, and performance parameters, emphasizing thermodynamic efficiency and environmental benefits. The evaluation employs classical thermodynamic laws, exergy analysis, and parametric studies on typical ORC setups. The results demonstrate the feasibility and potential of ORCs in harnessing low-grade heat sources such as industrial waste heat and geothermal energy. Challenges related to fluid selection and system optimization are discussed, with recommendations for practical implementations using technology available up to 2020.
Keywords
Organic Rankine Cycle, low-temperature heat recovery, thermodynamic analysis, working fluids, exergy efficiency
REFERENCES
Hung, T. C., Shai, T. Y., & Wang, S. K. (1997). A review of organic Rankine cycles (ORCs) for the recovery of low-grade waste heat. Energy, 22(7), 661–667. https://doi.org/10.1016/S0360-5442(96)00165-X
Wei, D., Lu, X., Lu, Z., & Gu, J. (2007). Performance analysis and optimization of organic Rankine cycle (ORC) for waste heat recovery. Energy Conversion and Management, 48(4), 1113–1119. https://doi.org/10.1016/j.enconman.2006.10.020
Quoilin, S., Van Den Broek, M., Declaye, S., Dewallef, P., & Lemort, V. (2013). Techno-economic survey of Organic Rankine Cycle (ORC) systems. Renewable and Sustainable Energy Reviews, 22, 168–186. https://doi.org/10.1016/j.rser.2013.01.028
Saleh, B., Koglbauer, G., Wendland, M., & Fischer, J. (2007). Working fluids for low-temperature organic Rankine cycles. Energy, 32(7), 1210–1221. https://doi.org/10.1016/j.energy.2006.07.001
Liu, B. T., Chien, K. H., & Wang, C. C. (2004). Effect of working fluids on organic Rankine cycle for waste heat recovery. Energy, 29(8), 1207–1217. https://doi.org/10.1016/j.energy.2004.01.004
Chen, H., Goswami, D. Y., & Stefanakos, E. K. (2010). A review of thermodynamic cycles and working fluids for the conversion of low-grade heat. Renewable and Sustainable Energy Reviews, 14(9), 3059–3067. https://doi.org/10.1016/j.rser.2010.07.006
Vaja, I., & Gambarotta, A. (2010). Internal combustion engine (ICE) bottoming with organic Rankine cycles (ORCs). Energy, 35(2), 1084–1093. https://doi.org/10.1016/j.energy.2009.06.001
Yari, M. (2010). Exergetical comparison of different working fluids for organic Rankine cycles. Energy, 35(12), 5203–5211. https://doi.org/10.1016/j.energy.2010.07.015
Zhang, X., He, M., & Zhang, Y. (2012). A review of research on the Kalina cycle. Renewable and Sustainable Energy Reviews, 16(7), 5309–5318. https://doi.org/10.1016/j.rser.2012.05.040
Wang, E. H., Zhang, H. G., Fan, B. Y., Ouyang, M. G., Zhao, Y., & Mu, Q. H. (2011). Study of working fluid selection of organic Rankine cycle (ORC) for engine waste heat recovery. Energy, 36(5), 3406–3418. https://doi.org/10.1016/j.energy.2011.03.041
