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http://dx.doi.org/10.7316/KHNES.2020.31.2.234

Performance Characteristics Analysis of Combined Cycle Using Regenerative Organic Rankine Cycle and LNG Cold Energy  

KIM, KYOUNG HOON (Department of Mechanical Engineering, Kumoh National Institute of Technology)
JUNG, YOUNG GUAN (Department of Mechanical Engineering, Kumoh National Institute of Technology)
HAN, CHUL HO (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.31, no.2, 2020 , pp. 234-241 More about this Journal
Abstract
This paper presents a thermodynamic performance analysis of a combined cycle consisting of regenerative organic Rankine cycle (ORC) and liquefied natural gas (LNG) Rankine cycle to recover low-grade heat source and the cold energy of LNG. The mathematical models are developed and the system performances are analyzed in the aspect of thermodynamics. The effects of the turbine inlet pressure and the working fluid on the system performance such as the mass flow rates, heat transfers at heat exchangers, power productions at turbines, and thermal efficiency are systematically investigated. The results show that the thermodynamic performance of ORC such as net power production and thermal efficiency can be significantly improved by the regenerative ORC and the LNG cold energy.
Keywords
Organic Rankine cycle; Regeneration; Low grade heat source; LNG; Cold energy;
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Times Cited By KSCI : 2  (Citation Analysis)
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