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[1] Chen Jiufa,. Comprehensive approach to predicting the circulation composition of zeotropic refrigerants [J]. Journal of Southeast University (English Edition), 2004, 20 (3): 315-318. [doi:10.3969/j.issn.1003-7985.2004.03.010]
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Comprehensive approach to predicting the circulation composition of zeotropic refrigerants()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
20
Issue:
2004 3
Page:
315-318
Research Field:
Energy and Power Engineering
Publishing date:
2004-09-30

Info

Title:
Comprehensive approach to predicting the circulation composition of zeotropic refrigerants
Author(s):
Chen Jiufa
Department of Power Engineering, Southeast University, Nanjing 210096, China
Keywords:
zeotropic refrigerant composition shift circulation composition
PACS:
TB61
DOI:
10.3969/j.issn.1003-7985.2004.03.010
Abstract:
The problem of composition shift in zeotropic fluid circulation, which is encountered in modern air conditioning and refrigeration systems, is studied. It reveals that the composition shift phenomena is contributed by fractionation related to four mechanisms. This paper concentrates on the modeling of component fractionation in heat exchangers. Element approach is employed, and the amount of each component holdup is calculated element by element with a proper void fraction model. The circulation concentration is determined from the refrigerant differential holdup in heat exchangers. Simulations have been carried out to prove the validity. The results can improve the reliability and efficiency in zeotropic refrigerant applications.

References:

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Memo

Memo:
Biography: Chen Jiufa(1959—), male, PhD, professor, j_chen99@fescomail.net.
Last Update: 2004-09-20