水面综合散热系数确定方法及灵敏度分析

Defining methods of the heat transfer coefficient and its analysis of sensitiveness

水面综合散热系数是温排水数值模拟中的一个重要参数,它的正确选择与计算直接关系到模拟结果的准确性。从水面综合散热系数KS的确定方法出发,分别取KS为常数和非常数,结合某电厂实例分析KS的取值对温升场模拟结果的影响,并对水面散热系数KS的灵敏度进行分析,这对环保部门进行沿江、沿海环境总体规划具有重要意义。

The heat transfer coefficient （shorted for ks）is an important parameter in numerical simulation of heat discharge. The ks is related to the accuracy of the result if it is selected and calculated exactly. This article introduces the methods of defining ks, and analyses the effect of ks about simulating the result of temperature field with the example of thermoelectric power plant, and analyses the sensitiveness of ks, It is significant for environmental protection departments to making a whole planning of environment about river and ocean .