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http://dx.doi.org/10.7316/khnes.2011.22.2.223

Study of Working Fluids on Thermodynamic Performance of Organic Rankine Cycle (ORC)  

Kim, Kyoung-Hoon (Department of Mechanical Engineering, Kumoh National Institute of Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.22, no.2, 2011 , pp. 223-231 More about this Journal
Abstract
The thermal efficiency of energy-to-power conversion becomes uneconomically low when the temperature of heat source drops below $370^{\circ}C$. ORC (Organic Rankine Cycle) has attracted much attention in last few years due to its potential in reducing consumption of fossil fuels and relaxing environmental problems, and its favorable characteristics to exploit low-temperature heat sources. In this work thermodynamic performance of ORC using nine working fluids is comparatively assessed. Special attention is paid to the effect of system parameters such as turbine inlet temperature and pressure on the characteristics of the system such as volumetric flow rate and quality at turbine exit, latent heat, net work as well as thermal efficiency. Results show that in selection of working fluid it is required to consider various criteria of performance characteristics as well as the thermal efficiency. Results also show that the system efficiencies become same irrespective of kind of working fluid when the temperature of heat source decreases to low range.
Keywords
Organic rankine cycle; Low-temperature energy source; Patel-Teja equation of state; Thermodynamic performance;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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