An elasto-plastic analysis of pressurizing type expanding tube of novel plate fin heat exchanger
Details
Plate fin heat exchangers are often used for air conditioner. In order to obtain better performance, flat and multi-hole type tube is used to be adoptive as a refrigerant tube rather than normal cylindrical tube. However connecting method between the flat tube and cooling fin is not realized for practical application. This report investigates a novel method of connection by giving inside pressure and plastic deformation to a special flat tubes which has doglegged thin inner partitions. Elasto-plastic analysis by Finite Element Method is performed to investigate behavior of the flat tube under some conditions.
