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http://dx.doi.org/10.9726/kspse.2016.20.1.011

The Performance Analysis of Multi Stage Reheater Organic Rankine Cycle According to Heat Sink Temperature Change  

Lee, Ho-Saeng (Korea Research Institute of Ships & Ocean Engineering)
Lim, Seung-Taek (Korea Research Institute of Ships & Ocean Engineering)
Kim, Hyeon-Ju (Korea Research Institute of Ships & Ocean Engineering)
Publication Information
Journal of Power System Engineering / v.20, no.1, 2016 , pp. 11-17 More about this Journal
Abstract
In this study, the simulation for performance comparison between basic single stage organic rankine cycle, multi stage reheater cycle and multi stage reheater & recuperator cycle was carried out. The multi stage reheater cycle and multi stage reheater & recuperator cycle was designed to improve the efficiency for organic rankine cycle using heat source from industrial waste heat and heat sink from deep ocean water. R245fa was selected as a refrigerant for the cycle and system efficiencies were simulated by the variation of the heat sink temperature and the cycle classification. Performance characteristics were simulated by using the Aspen HYSYS. It was confirmed that the system efficiency was decreased by the increase of heat sink temperature. These results can be considered to be applied as geo-ocean thermal energy conversion in where plenty of geothermal or ocean thermal resource exist.
Keywords
Ocean Thermal Energy Conversion; Multi Stage Reheater Cycle; Multi Stage Reheater & Recuperator Cycle; Heat Sink;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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