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低温地板供暖在利用低品位能源方面具有一定的优势,已经广泛应用于居住建筑。本文利用传热学的基本理论建立了低温地板供暖房间和散热器供暖房间的传热数学模型,在设定的室内空气温度条件下,分别模拟得出了2种供暖方式房间在稳态传热条件下的围护结构表面温度和内表面换热系数,并利用上述计算结果对2种供暖方式房间热负荷之间的差异进行了比较。分析结果表明,在节能65%阶段,相同室内空气温度条件下,低温地板供暖房间热负荷大于散热器供暖房间热负荷;对于北京地区和哈尔滨地区,不同空气温度下2种供暖方式房间热负荷面积指标差值分别约为0.5～0.7 W/m2和0.3～0.5 W/m2。
Low-temperature floor heating in the use of low-grade energy has some advantages, has been widely used in residential buildings. In this paper, the basic theory of heat transfer is used to establish the mathematical model of heat transfer in low temperature floor heating room and radiator heating room. Under the set indoor air temperature conditions, two kinds of heating mode rooms are simulated respectively in steady state heat transfer Under the conditions of the envelope surface temperature and the inner surface heat transfer coefficient, and the use of the above calculation results of two heating methods room heat load differences were compared. The results show that under the condition of 65% energy saving and the same indoor air temperature, the heat load of the low temperature floor heating room is larger than the heat load of the radiator heating room; for the two regions of Beijing and Harbin, The difference between the indexes is about 0.5 ~ 0.7 W / m2 and 0.3 ~ 0.5 W / m2 respectively.