In-tube heat transfer characteristics of refrigerant mixtures of HFC32-134a and HFC32-125-134a.
Author(s) : TORIKOSHI K., EBISU T.
Summary
The experiments were performed for an inner grooved horizontal tube utilized in the actual heat exchangers of air-conditioning machines for residential use with various compositions of R32 and R125. The evaporation heat transfer coefficients for R32-R134a (30-70% by weight) and R32-R125-R134a (23-25-52% by weight) became lower compared with that for a pure R22 at the same mass flux. Similarly, the condensation heat transfer results for both the refrigerant mixtures were found to be lower than that for R22.
Details
- Original title: In-tube heat transfer characteristics of refrigerant mixtures of HFC32-134a and HFC32-125-134a.
- Record ID : 1995-0902
- Languages: English
- Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
- Publication date: 1994/07/19
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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- Date : 1997
- Languages : Japanese
- Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 14 - n. 1
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- Author(s) : URATA K.
- Date : 1995/08
- Languages : Japanese
- Source: Refrigeration - vol. 70 - n. 814
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- Author(s) : KIM M. S., DIDION D. A.
- Date : 1995/01
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- Author(s) : CAVALLINI A.
- Date : 2003
- Languages : English
- Source: Annual proceedings of the Institute of Refrigeration. 2003-2004 [CD-ROM].
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- Author(s) : KONDOU C., BABA D., MISHIMA F., et al.
- Date : 2013/06/17
- Languages : English
- Source: 4th IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants
- Formats : PDF
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