Additional Heating System Based on an A/C Loop

Paper #:
  • 971782

Published:
  • 1997-05-19
Citation:
Karl, S., "Additional Heating System Based on an A/C Loop," SAE Technical Paper 971782, 1997, https://doi.org/10.4271/971782.
Author(s):
Affiliated:
Pages:
3
Abstract:
A complementary heating system uses components of an A/C loop. Hot refrigerant vapour is injected in the evaporator where it heats up the airflow penetrating the passenger cabin. The energy is provided by the compressor compressing the refrigerant against a gas expansion device. A 3 -way diversion valve makes it possible to switch between the classical A/C operation and the new additional heating function. The Additional Heating System (AHS) has been installed on cars and tested in a climatic windtunnel and during field tests.
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