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On-line Access: 2010-01-01

Received: 2009-04-15

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Journal of Zhejiang University SCIENCE A 2010 Vol.11 No.2 P.115-127

http://doi.org/10.1631/jzus.A0900208


Performance of a single-stage Linde-Hampson refrigerator operating with binary refrigerants at the temperature level of −60 °C


Author(s):  Qin WANG, Kang CUI, Teng-fei SUN, Fu-sheng CHEN, Guang-ming CHEN, Kang CUI

Affiliation(s):  State Key Laboratory of Clean Energy Utilization, Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   gmchen@zju.edu.cn

Key Words:  Linde-Hampson, Binary refrigerant, Refrigerator, Performance, Optimization


Qin WANG, Kang CUI, Teng-fei SUN, Fu-sheng CHEN, Guang-ming CHEN, Kang CUI. Performance of a single-stage Linde-Hampson refrigerator operating with binary refrigerants at the temperature level of −60 °C[J]. Journal of Zhejiang University Science A, 2010, 11(2): 115-127.

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author="Qin WANG, Kang CUI, Teng-fei SUN, Fu-sheng CHEN, Guang-ming CHEN, Kang CUI",
journal="Journal of Zhejiang University Science A",
volume="11",
number="2",
pages="115-127",
year="2010",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0900208"
}

%0 Journal Article
%T Performance of a single-stage Linde-Hampson refrigerator operating with binary refrigerants at the temperature level of −60 °C
%A Qin WANG
%A Kang CUI
%A Teng-fei SUN
%A Fu-sheng CHEN
%A Guang-ming CHEN
%A Kang CUI
%J Journal of Zhejiang University SCIENCE A
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%N 2
%P 115-127
%@ 1673-565X
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0900208

TY - JOUR
T1 - Performance of a single-stage Linde-Hampson refrigerator operating with binary refrigerants at the temperature level of −60 °C
A1 - Qin WANG
A1 - Kang CUI
A1 - Teng-fei SUN
A1 - Fu-sheng CHEN
A1 - Guang-ming CHEN
A1 - Kang CUI
J0 - Journal of Zhejiang University Science A
VL - 11
IS - 2
SP - 115
EP - 127
%@ 1673-565X
Y1 - 2010
PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A0900208


Abstract: 
The optimization of the performance of a single-stage linde-Hampson refrigerator (LHR) operating with six different binary refrigerants (R23/R134a, R23/R227ea, R23/R236ea, R170/R290, R170/R600a and R170/R600) with ozone depletion potentials (ODPs) of zero was conducted using a new approach at the temperature level of 60 °C. Among these binary refrigerants, the 0.55 and the 0.6 mole fractions of R23 for R23/R236ea are the most prospective nonflammable ones for the medium and low suction pressure compressors, respectively. For these two kinds of compressors, the 0.6 and the 0.65 mole fractions of R170 for R170/R600, respectively, are the most prospective binary refrigerants with low global warming potentials (GWPs). The results of optimization of pressure levels indicate that the optimum low pressure value for coefficients of performance (COP) is achieved when the minimum temperature differences occur at both the hot and the cold ends of the recuperator at a specified composition and pressure ratio. Two useful new parameters, the entropy production per unit heat recuperated and the ratio of heat recuperating capacity to the power consumption of the compression, were introduced to analyze the exergy loss ratio in the recuperator. The new approach employed in this paper also suggests a promising application even to the optimization of the performance with multi-component refrigerants.

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

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