Energy, exergy and economic analysis of biomass and geothermal energy based CCHP system integrated with compressed air energy storage (CAES)

Xiaofeng Zhang,Rong Zeng,Qiaolin Deng,Xiaosong Gu,Huaican Liu,Yecong He,Kang Mu,Xiaobo Liu,Hong Tian,Hongqiang Li

Energy Conversion and Management（2019）

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Abstract

•A biomass and geothermal based CCHP system combined with CAES is proposed.•Energy, exergy and economic analysis of proposed system are performed.•Effects of key operating parameters on system thermodynamic performance are studied.•The round trip efficiency and exergy efficiency are 90.06% and 31.52%, respectively.•Variations of dynamic payback period under fuel and products costs are investigated.

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Key words

Combined cooling,Heating and power (CCHP) system,Compressed air energy storage (CAES),Ground source heat pump (GSHP),Thermodynamic analysis,Economic analysis

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