Internal Heat Exchanger Heat Transfer and Pressure Drop Effect on System Performance and Compressor Discharge Temperature

Paper #:
  • 2012-01-0318

Published:
  • 2012-04-16
DOI:
  • 10.4271/2012-01-0318
Citation:
Meyer, J., "Internal Heat Exchanger Heat Transfer and Pressure Drop Effect on System Performance and Compressor Discharge Temperature," SAE Technical Paper 2012-01-0318, 2012, https://doi.org/10.4271/2012-01-0318.
Author(s):
Pages:
8
Abstract:
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.
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