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The authors discuss the effect of the use of R134a as a substitute for R22 in precisely defined refrigerating units of water chillers. The thermodynamic properties of the two refrigerants are reviewed, the heat exchange coefficients are calculated for the equivalent exchangers, the effect on the compressor, of which the piston displacement should be increased by 50%, is examined. Other components of the cycle and the oil problem are investigated, and the predicted performance for this refrigerant change is given in the form of detailed tables for different situations.
Details
- Original title: Passage du R22 au R134a.
- Record ID : 1993-2510
- Languages: French
- Publication date: 1992/12/08
- Source: Source: AICVF, Journ. Ozone 5, Paris
19 p.; 11 fig.; 2 tabl. - Document available for consultation in the library of the IIR headquarters only.
Indexing
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Remplacement du R12 par du R134a dans un groupe...
- Author(s) : MAILLET J. P.
- Date : 1992/12/08
- Languages : French
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Comparison of the performances of a Ciat chille...
- Author(s) : BAILLY A., JURKOWSKI R.
- Date : 1999/09/19
- Languages : English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Formats : PDF
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Shell-side condensation heat transfer of R134a....
- Author(s) : HUBER J. B., REWERTS L. E., PATE M. B.
- Date : 1994
- Languages : English
- Source: ASHRAE Transactions 1994.
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Practical experiences with alternative refriger...
- Author(s) : COOPER P.
- Date : 1992/12/08
- Languages : English
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SHELL AND TUBE EVAPORATORS COMPUTERIZED CALCULA...
- Author(s) : GATCHILOV T. S., IVANOVA V. S., TANCHEV N. D.
- Date : 1990/09/24
- Languages : English
- Formats : PDF
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