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http://dx.doi.org/10.7842/kigas.2018.22.4.63

Simulation Study on Liquid Air Energy Storage (LAES) System using Dual Refrigeration Cycles and Thermal Oil Circulation  

Jang, Soonnam (Plant Engineering Center, Institute for Advanced Engineering)
Park, Jongpo (Plant Engineering Center, Institute for Advanced Engineering)
Publication Information
Journal of the Korean Institute of Gas / v.22, no.4, 2018 , pp. 63-73 More about this Journal
Abstract
Innovative technical process for Energy Storage System (ESS), Liquid Air Energy Storage system (LAES) is mature technologies based on the gas liquefaction process. In spite of many advantages such as high energy density, no geographical constraints, low investment costs and long useful life, the system has not yet widely commercialized due to low round trip efficiency. To improve RTE and acquire high yield of liquid air, various configurations of LAES process have been considered. In this research, dual refrigerants cycle (R-600a and methanol) for air liquefaction and thermal oil circulation for power generation via liquid air gasification have been applied to improve cycle performance significantly using Aspen HYSYS simulator.
Keywords
Liquid Air Energy Storage (LAES); Energy Storage System (ESS); Dual Refrigerant cycle; Thermal Oil Circulation; Power Generation;
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