Optimal Design Method of Automotive Charged Air Cooler Based on the Matching of Hot-side and Cold-side Flow Channels

摘要

Charged air coolers (CAC) are the major components in automotive turbo-charging system. Fin parameters play an important role which affect thermal-hydraulic performances significantly. According to typical fin structures, this paper carried out the matching design of hotside and coldside flow channels in CACs. Based on numerical simulation results, the fluid flow and heat transfer performances of 9 matched CACS were comprehensively evaluated and thus the optimal structure was determined. The results are consistent with engineering practices. This design method can reduce CAC research costs and shorten development period and offer guidance for the designing and manufacturing of CACs.