由热量平衡原理,导出求解圆管材料导热系数的公式,经对式中各影响参数进行分析和试验究,以及模拟水管通水状况,提出了一种简单实用的聚乙烯塑料水管导热系数的测试方法,并进行了实例测试。

According to the principle of heat balance,a formula for finding the heat conductivity coffieient of material used for circular pipe is derived.Through the analyses and experimental study of affecting factors in the formula and simulating water flow state in the pipe,a simple and applicable testing method for measuring the heat conductivity coefficient of polyethylene plastic pipe is proposed,and an illustrative computation is given