Passenger cars sold in moderate climatic zones frequently come without factory-installed air conditioning. Therefore, the temperatures in the vehicle occupant compartment may rise above the thermal comfort range during hot summer months. In order to provide for a maximum of thermal comfort under those circumstances, occupant compartment ventilation should satisfy certain clearly defined requirements. The paper submits the physiological rationale and a concrete description of these requirements. The so-called isotach method was developed to permit a quantitative determination of the vehicle occupant cell air flow and to verify compliance with the air flow requirements. While the application of the isotach method to given vehicles does not pose any problems, there are frequent requests for air-flow data projections during the first stages of new vehicle development. The paper presents a computing process that permits prognoses of the air-flow velocities downstream from the fresh air outlets.

  • Supplemental Notes:
    • From the February 26-March 2, 1979 Meeting.
  • Corporate Authors:

    Society of Automotive Engineers (SAE)

    400 Commonwealth Drive
    Warrendale, PA  United States  15096
  • Authors:
    • TEMMING, J
    • Hucho, W H
  • Publication Date: 1979

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00301545
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 790398 Conf Paper
  • Files: TRIS
  • Created Date: Nov 27 1979 12:00AM