夏热冬冷地区低温辐射地板供暖影响因素的正交试验

Orthogonal Experimental of the Factors Influencing Low Temperature Radiant Floor Heating in Hot Summer and Cold Winter Regions

为了研究夏热冬冷地区低温辐射地板供暖影响因素,采用L25(56)的正交试验方法探究供水温度、管间流速、管径、管间距、填充层厚度5因素对地板表面平均温度和均匀度的影响,获得各因素对试验指标的影响趋势、显著性程度和组合的最优解。研究表明:对地板表面平均温度的影响程度为供水温度>管间距>管径>填充层厚度>管间流速,对均匀度的影响程度为管间距>供水温度>填充层厚度>管径>管间流速,最优水平组合为:供水温度取35℃,管间流速取0.4 m/s,管径取16 mm,管间距取100 mm,填充层厚度取75 mm。试验结果为夏热冬冷地区辐射供暖设计提供借鉴,亦可对数值分析软件与统计学的结合提供思路。

In order to study the factors influencing low temperature radiant floor heating in hot summer and cold winter locales,the impacts of five variables—water supply temperature,inter-tube flow rate,tube diameter,tube spacing,and filler layer thickness—on the average temperature and uniformity of the floor surface were examined using the orthogonal test technique of L 25(56).The research demonstrates:water supply temperature>tube spacing>tube diameter>filler layer thickness>inter-tube flow rate has the most influence on the floor surface s average temperature,while tube spacing>water supply temperature>filler layer thickness>tube diameter>inter-tube flow rate has the most influence on the floor surface s uniformity.The ideal level combination is water supply temperature is taken as 35℃,inter-tube flow rate is taken as 0.4 m/s,tube diameter is taken as 16 mm,tube spacing is taken as the test s findings serve as a guide for designing radiant heating systems for use in hot summer and cold winter climates.They also offer suggestions on how to combine statistics and numerical analytic tools.