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	The effect of wet compression on a centrifugal compressor for a compressed air energy storage system
	Sun, Jianting1,2; Zhou, Xin1; Liang, Qi1,2; Zuo, Zhitao1; Chen, Haisheng1
刊名	Energies
	2019-03-01
卷号	12期号:5页码:24
关键词	Compressed air energy storage Centrifugal compressor Wet compression Numerical simulation
ISSN号	1996-1073
DOI	10.3390/en12050906
通讯作者	Chen, haisheng(chen_hs@iet.cn)
英文摘要	There is an urgent demand to reduce compression power consumption in compressed air energy storage (caes) systems. wet compression has been widely used in gas turbines to reduce compressor power consumption and improve thermal efficiency, but this technology has not been applied yet in the caes field. in this paper, a centrifugal compressor for caes was numerically studied to investigate the effect of wet compression on compressor and droplet motion. the results showed that wet compression makes the performance curve shift to a high-pressure ratio/efficiency. meanwhile, wet compression lowers the stall margin and narrows the stable operation range, and the effect is enhanced with the increase of water injection ratio or the decrease of average droplet diameter. wet compression can effectively save compressor power consumption during energy storage, and at the designed pressure ratio, the power consumption can be reduced by 1.47% with a water injection ratio of 3% and an average droplet diameter of 5 m. influenced by the inertia and secondary flow, the droplets migrate to the impeller pressure and shroud side, thus causing brake loss by impacting on blades. the migration of droplets strengthens with the increase in the average droplet diameter and flow coefficient.
WOS关键词	WATER SPRAY ; PERFORMANCE ; MODEL
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
语种	英语
出版者	MDPI
WOS记录号	WOS:000462646700139
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373496
专题	工程热物理研究所
通讯作者	Chen, Haisheng
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jianting,Zhou, Xin,Liang, Qi,et al. The effect of wet compression on a centrifugal compressor for a compressed air energy storage system[J]. Energies,2019,12(5):24.
APA	Sun, Jianting,Zhou, Xin,Liang, Qi,Zuo, Zhitao,&Chen, Haisheng.(2019).The effect of wet compression on a centrifugal compressor for a compressed air energy storage system.Energies,12(5),24.
MLA	Sun, Jianting,et al."The effect of wet compression on a centrifugal compressor for a compressed air energy storage system".Energies 12.5(2019):24.

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