Thermodynamic analysis of a novel energy storage system based on   compressed CO2 fluid

doi:10.1002/er.3732

CORC > 北京大学 > 工学院

	Thermodynamic analysis of a novel energy storage system based on compressed CO2 fluid
	Zhang, Xin-Rong ; Wang, Guan-Bang
刊名	INTERNATIONAL JOURNAL OF ENERGY RESEARCH
	2017
关键词	Brayton cycle compressed CO2 energy storage thermodynamic analysis sensitivity analysis PUMPED HYDRO STORAGE CARBON-DIOXIDE CONCEPTUAL DESIGN HEAT INTEGRATION CYCLES OPTIMIZATION PART
DOI	10.1002/er.3732
英文摘要	Because of rapidly growing renewable power capacity, energy storage system is in urgent need to cope with the reliability and stability challenges. CO2 has already been selected as the working fluid, including thermo-electrical energy storage or electrothermal energy storage systems and compressed CO2 energy storage (CCES) systems. In this paper, a CCES system based on Brayton cycle with hot water as the heat storage medium is proposed and analyzed. Thermodynamic model of the system is established for energy and exergy analysis. Sensitivity analysis is then conducted to reveal effects of different parameters on system performances and pursue optimization potential. At a typical transcritical operation condition, round trip efficiency is 60% with energy density of 2.6kWh/m(3). And for the typical supercritical operation condition, the round trip efficiency can reach 71% with energy density of 23kWh/m(3). High round trip efficiency and energy density, which is comparable with those of compressed air energy storage systems, thermo-electrical energy storage (electrothermal energy storage) systems, and other CCES systems, lead to promising prospect of the proposed system. Copyright (c) 2017 John Wiley & Sons, Ltd.; National Key Research and Development Program [2016YFD0400106]; Beijing Engineering Research Center of City Heat; SCI(E); ARTICLE; 10; 1487-1503; 41
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/471920]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Xin-Rong,Wang, Guan-Bang. Thermodynamic analysis of a novel energy storage system based on compressed CO2 fluid[J]. INTERNATIONAL JOURNAL OF ENERGY RESEARCH,2017.
APA	Zhang, Xin-Rong,&Wang, Guan-Bang.(2017).Thermodynamic analysis of a novel energy storage system based on compressed CO2 fluid.INTERNATIONAL JOURNAL OF ENERGY RESEARCH.
MLA	Zhang, Xin-Rong,et al."Thermodynamic analysis of a novel energy storage system based on compressed CO2 fluid".INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2017).