R134A Suction Line Heat Exchanger in Different Configurations of Automotive Air-Conditioning Systems 2001-01-1694
A suction line heat exchanger (SLHX) transfers heat from the condenser outlet to the suction gas. In a TXV (thermostatic expansion valve) system, the performance improvement with a 60 to 80 % effective SLHX is expected to be on the order of 8 to 10 % for capacity, and 5 to 7 % for COP for high outdoor air temperatures of 43ºC. In a FOT (fixed orifice tube) system, the performance improvement was calculated to be about 10 to 15 %. The calculated improvements have been verified experimentally within a few percent.
Citation: Preissner, M., Radermacher, R., Zhang, C., and Dickson, T., "R134A Suction Line Heat Exchanger in Different Configurations of Automotive Air-Conditioning Systems," SAE Technical Paper 2001-01-1694, 2001, https://doi.org/10.4271/2001-01-1694. Download Citation
Marcus Preissner, Reinhard Radermacher, Chao Zhang, Tim Dickson
University of Maryland, Center for Environmental Energy Engineering, Visteon Corporation, Halla Climate Control Canada Inc.
Vehicle Thermal Management Systems Conference & Exposition
Proceedings of the 2001 Vehicle Thermal Management Systems Conference-P-363, Vehicle Thermal Management-PT-97