Simulation of Dynamic Heat Transfer inside Cryogenic Butterfly Valve under Cryogenic Test

• 作 者: FengXi;YuXiaoming;Lijinfeng;Shenwenjun;
• 机 构: Institute of Refrigeration and Cryogenics, University of Shanghai for Science and Technology shangha
• 出 处: 第五届上海机械科技论坛暨2010年中外流体工程学术年会
• 发表日期: 2011年期

　　Based on reasonable modeling and simplification of the cryogenic butterfly valve, combined with the physical parameter of the material under low temperature, we can dynamically simulate the cooling process of the valve in constant low temperature required by the experiment with the application of ANSYS software.The temperature in the center of valve plate of the testing cryogenic butterfly valve should reach the required temperature.It provides a referenced cooling time in new testing environment.In the way of curve fitting, we can work out a polynomial of which cooling time changes with the convection heat transfer coefficient.