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建立辐射地板的传热模型,通过有限差分的方法,模拟大理石辐射地板、塑胶地面辐射地板的传热特性,计算两种辐射地板的等效热阻以及温度分布情况,辐射地板的等效热阻不受工作环境的影响。通过实验测试结果验证辐射地板热阻的数值模拟结果,误差约为10%。利用辐射板的热阻,计算分析在不同工作环境中辐射板的供冷量,辐射板的供冷量为20～50W/m2,太阳辐射会使辐射板的供冷量迅速上升。
The heat transfer model of radiant floor is established. The heat transfer characteristics of marble radiant floor and plastic floor radiant floor are simulated by finite difference method. The equivalent thermal resistance and temperature distribution of the two radiant floors are calculated. The equivalent thermal resistance Not affected by the working environment. The numerical simulation results of the thermal resistance of the radiant floor were verified by the experimental test results, with an error of about 10%. Using the thermal resistance of the radiation plate, the cooling capacity of the radiation plate in different working environments is calculated and analyzed. The cooling capacity of the radiation plate is 20 ~ 50W / m2. The solar radiation will rapidly increase the cooling capacity of the radiation plate.