TY  - EJOU
AU  - Jiang, Weiting 
AU  - Zhao, Lei 
AU  - Wang, Chongyang 
AU  - He, Tingni 
AU  - Pan, Weiguo 

TI  - Simulation and Optimization of the Fluid Solidification Process in Brazed Plate Heat Exchangers
T2  - Fluid Dynamics \& Materials Processing

PY  - 2023
VL  - 19
IS  - 10
SN  - 1555-2578

AB  - When a brazed plate heat exchanger is used as an evaporator, the working mass in the channel may undergo solidification, thereby hindering the refrigeration cycle. In this study the liquid solidification process and its optimization in a brazed plate heat exchanger are investigated numerically for different inlet velocities; moreover, different levels of corrugation are considered. The results indicate that solidification first occurs around the contacts, followed by the area behind the contacts. It is also shown that dead flow zones exist in the sharp areas and such areas are prone to liquid solidification. After optimization, the solidification area attains its smallest value when a corrugation spacing λ = 4.2 mm is considered.
KW  - Brazed plate heat exchanger; numerical simulation; solidification; contacts

DO  - 10.32604/fdmp.2023.027504