Evaporative characteristics of R12, R134a, and a mixture at low mass fluxes.
Author(s) : WATTELET J. P., CHATO J. C., SOUZA A. L., CHRISTOFFERSEN B. R.
Summary
Experimental heat transfer coefficients for R12, R134a, and MP39 are reported in the paper. Tests were conducted using a single-tube evaporator test facility. The heat transfer coefficients for R134a were higher than those for R12 using equivalent mass flux and cooling capacity bases. The heat transfer coefficients for MP39 were lower than those for R12 using equivalent mass flux and cooling capacity bases. The correlations of Shah and Kandlikar were compared with the experimental heat transfer coefficients.
Details
- Original title: Evaporative characteristics of R12, R134a, and a mixture at low mass fluxes.
- Record ID : 1994-3434
- Languages: English
- Source: ASHRAE Transactions 1994.
- Publication date: 1994
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
- Themes: Mass transfer
- Keywords: R134a; Horizontal tube; Heat transfer coefficient; Measurement; Heat transfer; R22; R152a; R124; R12; Mixture; Boiling
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- Author(s) : JUNG D. S., RADERMACHER R.
- Date : 1991
- Languages : English
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- Author(s) : JUNG D., RADERMACHER R.
- Date : 1993/05
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 16 - n. 3
- Formats : PDF
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- Author(s) : BLASZEWSKI R.
- Date : 1991
- Languages : Polish
- Source: Chlodnictwo - vol. 26 - n. 10
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Prediction of the condensation and boiling char...
- Author(s) : SAMI S. M., SCHNOTALE J., SMALE J. G.
- Date : 1994
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- Source: Int. J. Energy Res. - vol. 18
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A COMPARISON OF EVAPORATION HEAT TRANSFER COEFF...
- Author(s) : TAKAMATSU H., MOMOKI S., FUJII T.
- Date : 1991/08/10
- Languages : English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Formats : PDF
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