Compact Cooling Unit for High Power Electric Controller. Numerical Analysis in the Counter Flow Type Heat Exchange with Inclined Fin.

Abstract

In recent years, calorific power of semiconductor has been increasing. So more compact cooling unit for high power control panel compared with air-forced aluminum fin is desired. We have been developing the new counter flow type Compact cooling unit having inclined radiation fin. In this paper, we have established the simple method for calculation of cooling performance of heat exchanger by using radiation fin modeled by pressure resistance in the flow field, and by using NTU method in the temperature field.