Determination of heat transfer coefficient for an interaction of sub-cooled gas and metal

2nd International Manufacturing Engineering Conference; 3rd Asia-Pacific Conference on Manufacturing Systems

Sidek, Mohd Zaidi^1 ; Kamarudin, Muhammad Syahidan^1

Fac. of Manufacturing Engineering, Universiti Malaysia Pahang, Pekan

26600, Malaysia^1

关键词: Finite element simulation model;    Heat transfer coefficient (HTC);    Hot forming process;    Hot metal surfaces;    Inverse methods;    Spray cooling;    Subcooled;    Temperature history;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/114/1/012034/pdf
DOI  :  10.1088/1757-899X/114/1/012034

来源: IOP

【 摘 要 】

Heat transfer coefficient (HTC) for a hot metal surface and their surrounding is one of the need be defined parameter in hot forming process. This study has been conducted to determine the HTC for an interaction between sub-cooled gas sprayed on a hot metal surface. Both experiments and finite element have been adopted in this work. Initially, the designated experiment was conducted to obtain temperature history of spray cooling process. Then, an inverse method was adopted to calculate the HTC value before we validate in a finite element simulation model. The result shows that the heat transfer coefficient for interaction of subcooled gas and hot metal surface is 1000 W/m2K.