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	Low specific speed centrifugal compressors for automotive fuel cell systems
	Qiu Zhiling ; Zheng Xinqian ; Zhang Yangjun
	2010-10-12 ; 2010-10-12
关键词	Practical/ computational fluid dynamics electric motors fuel cell vehicles impellers/ low specific speed centrifugal compressors automotive fuel cell systems air systems electric motors three-dimensional computational fluid dynamics analysis compressor impeller flow field impeller characteristic curves primary aerodynamic parameters/ B8520 Transportation B8410G Fuel cells B8310 a.c. machines B8320 d.c. machines
中文摘要	The air systems of automotive fuel cell engines can be improved by using low specific speed centrifugal compressors powered by electric motors with an ordinary high-speed of 20 000 r- min/sup -1/. A three-dimensional computational fluid dynamics analysis was used to investigate the compressor impeller flow field to obtain the impeller characteristic curves and primary aerodynamic parameters. The results indicate that the designed low specific speed impeller has high efficiency with a wide operating range of 0. 05-0.20 ldr kg-s/sup -1/, a highest efficiency of 83%, and a highest impeller pressure ratio of 1.6 at the design speed. Therefore, the low specific speed centrifugal compressor meets the requirements of air systems for automotive fuel cell engines and avoids the problems caused by super high-speed electric motors in high specific speed centrifugal compressors.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80034]
专题	清华大学
推荐引用方式 GB/T 7714	Qiu Zhiling,Zheng Xinqian,Zhang Yangjun. Low specific speed centrifugal compressors for automotive fuel cell systems[J],2010, 2010.
APA	Qiu Zhiling,Zheng Xinqian,&Zhang Yangjun.(2010).Low specific speed centrifugal compressors for automotive fuel cell systems..
MLA	Qiu Zhiling,et al."Low specific speed centrifugal compressors for automotive fuel cell systems".(2010).

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