水管冷却等效热交换系数及参数敏感性分析

Study on Heat Transfer Coefficient of Cooling Pipe and Sensitivity Analysis

为了更加精确的进行软水管冷却仿真分析,对第三类边界冷却水与混凝土间的等效热交换系数进行了研究,分析了其变量对冷却效果的影响,结果表明:增大管径,减小管壁厚度可以明显的加大水管冷却效果,流速变化对冷却效果影响不是很大,实际工程施工通水冷却要保证冷却水管流态为紊流。

In order to simulate pipe cooling system,the heat transfer coefficient was studied,the cooling effect was analyzed,the result show that： pipe diameter increased and pipe wall thickness decreased,cooling effect is better,water velocity didn＇t change cooling effect,water flow should be turbulent in practical engineering.