Promoting excellence in mobility engineering

  1. FISITA Store
  2. Technical Papers

Additional Heating System Based on an A/C Loop
paris98/f98t230

Authors

S. Karl - Valeo Climate Control

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-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 wind tunnel and during field tests.

Add to basket