As Internal Heat eXchanger (IHX) applications become more numerous for R-134a, and because they will likely become standard with R-1234yf, a detailed look at how they influence system parameters becomes necessary. This paper uses a proprietary air-conditioning system model to evaluate the system impact of three different IHX co-axial geometries. The three IHX cross-sections result in different heat transfer and pressure drops per unit length. The model assumes a 1,000mm suction line, including an IHX whose length is varied from 200mm to 800mm, in 100mm increments.
Internal Heat Exchanger Heat Transfer and Pressure Drop Effect on System Performance and Compressor Discharge Temperature
Sae Technical Papers
SAE 2012 World Congress & Exhibition ; 2012
16.04.2012
Aufsatz (Konferenz)
Englisch
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