Technical Paper
Evaluation of the HVAC System of Passenger Cars and Prediction of the Microclimate in the Passenger Compartment by Application of Numerical Flow Analysis
1997-05-19
971788
In this study, the air flow through the complete HVAC system (Heating-Ventilation-Air-Conditioning system) together with the flow field in the passenger compartment of a new Mercedes is calculated using the commercial CFD program STAR-CD. Two operating conditions of the HVAC system have been considered, namely the standard winter heat-up and summer cool-down mode. The computational model consists of around 6 million cells and includes all parts of the HVAC system (inlet plenum chamber, fan, filters, air distribution chamber with evaporator and heater, air ducts and vents) together with a detailed description of the passenger compartment containing four occupants.
