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Journal of Zhejiang University SCIENCE A 2011 Vol.12 No.3 P.207-213

http://doi.org/10.1631/jzus.A1000105


Performance evaluation of a micro turbo-expander for application in low-temperature solar electricity generation


Author(s):  Gang Pei, Yun-zhu Li, Jing Li, Jie Ji

Affiliation(s):  Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China

Corresponding email(s):   peigang@ustc.edu.cn, jijie@ustc.edu.cn

Key Words:  Turbo-expander, Solar, Low-temperature, Performance evaluation


Gang Pei, Yun-zhu Li, Jing Li, Jie Ji. Performance evaluation of a micro turbo-expander for application in low-temperature solar electricity generation[J]. Journal of Zhejiang University Science A, 2011, 12(3): 207-213.

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author="Gang Pei, Yun-zhu Li, Jing Li, Jie Ji",
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%A Jing Li
%A Jie Ji
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%I Zhejiang University Press & Springer
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T1 - Performance evaluation of a micro turbo-expander for application in low-temperature solar electricity generation
A1 - Gang Pei
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A1 - Jing Li
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SP - 207
EP - 213
%@ 1673-565X
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1000105


Abstract: 
A micro turbo-expander capable of high working speed was specially manufactured for use in an organic Rankine cycle (ORC). A series of tests were executed to examine the performance of the machine. In the experiment, the machine was tested under different inlet pressure conditions (0.2–0.5 MPa). Data such as the compressed air pressure, temperatures of the inlet and the outlet, rotational speed, and electric power generation were analyzed to discover underlying relationships. During the test, the rotational speed of the machine reached as high as 54 000 r/min, the peak value of the temperature drop between the inlet and the outlet reached 42 °C, the maximum electric power generated by the motor-generator attached to the machine reached 630 W, and the efficiency of the machine reached 0.43.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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