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R134a Heat Pump for Improved Passenger Comfort
Technical Paper
2004-01-1379
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
As powertrains continue to get more efficient, less waste heat is available for warming the passenger compartment. Although several supplemental heating devices are currently on the market, including electric heaters, viscous heaters, and fuel operated heaters, they each have shortcomings related to cost, capacity, efficiency, and/or environmental concerns[1].
In an attempt to provide superior time-to-comfort in a cost, weight, package efficient, and environmentally friendly manner, an R134a heat pump (HP) system was developed. Several technical issues were overcome while developing this system. Production vehicles have been retrofitted to incorporate the R134a heat pump system and tested in a climatic wind tunnel. Test results for a -18°C warm-up test were compared to baseline data, showing significant improvements in average discharge air and breath level temperatures. Discussions on variations of the heat pump system configurations are also presented along with the performance results.
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Citation
Meyer, J., Yang, G., and Papoulis, E., "R134a Heat Pump for Improved Passenger Comfort," SAE Technical Paper 2004-01-1379, 2004, https://doi.org/10.4271/2004-01-1379.Also In
References
- Diehl P. Supplemental Heating Technology for Passenger Cars Visteon Internal Technical Presentation June 2002
- Wienbolt H. W. Augenstein C. D. Visco Heater for Low Consumption Vehicles SAE paper 2003-01-0738 Advances in Automotive Climate Control Technologies SAE 2003 World Congress
- [3] Scherer L. P. Ghodbane M. Baker J. A. Kadle P. S. On-Vehicle Performance Comparison of an R-152a and R-134a Heat Pump System SAE paper 2003-01-0733 Advances in Automotive Climate Control Technologies SAE 2003 World Congress