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AN EXPERIMENTAL COMPARISON OF EVAPORATION CHARACTERISTICS OF HFC-134A AND CFC-12.
Author(s) : WATTELET J. P., et al.
Summary
AN INSTRUMENTED, HORIZONTAL, SMOOTH, 1.83 METER-LONG, 10.21 MILLIMETER-INSIDE DIAMETER EVAPORATION TEST SECTION EQUIPPED WITH SURFACE-WRAPPED HEATERS IS THE MAIN FEATURE OF THE DESIGN BASELINE TESTING USING R12 HAS BEEN CONDUCTED AS WELL AS PRELIMINARY MEASUREMENTS WITH R134A. MASS FLUXES WERE TESTED OVER THE RANGE OF 135 TO 540 KG/M2 S, AND HEAT FLUXES WERE VARIED FROM 5.1 TO 20.4 KILOWATTS/M2. EVAPORATION TEMPERATURES WERE BETWEEN 4.4 AND 11.1 DEG C WITH INLET QUALITIES OF 20 PERCENT. THE RESULTS ARE GIVEN.
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Details
- Original title: AN EXPERIMENTAL COMPARISON OF EVAPORATION CHARACTERISTICS OF HFC-134A AND CFC-12.
- Record ID : 1992-2139
- Languages: English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Publication date: 1991/08/10
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
-
Themes:
CFCs;
HFCs;
Mass transfer - Keywords: R134a; Horizontal tube; Comparison; Heat transfer; Bare pipe; R12; Evaporation
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