地板供暖和散热器供暖综合性能对比分析

Comprehensive Performance Comparison of Floor Radiation Heating and Radiator Heating

为研究供暖方式对不同楼层的适应性,在对地板供暖和散热器供暖传热机理进行分析的基础上,以兰州某民用住宅为研究对象,对其一层、三层和六层(顶层)房间分别采用两种供暖方式,计算了房间热负荷及供暖能耗,并从能耗、热舒适性、热稳定性、空气品质、运行管理等方面对两种供暖方式进行了对比分析。结果表明:从能耗方面考虑,顶层及一层的房间采用地板供暖优于散热器供暖,中间层两种方式较为接近。从热舒适性及热稳定性等方面考虑,地板供暖优于散热器供暖。但地板供暖对室内地面的清洁程度要求较高,而且,其后期维修成本较高。研究对于合理选择供暖方式、客观地进行能耗评价具有一定的理论指导意义。

To study the adaptability of different heating modes to different floors, based on the analysis on the heating transfer mechanisms of floor radiation heating and radiator convection heat transfer heating, respectively, three rooms were chosen to discuss the heating load under two types of heating modes. The three rooms are located in the first floor, the third floor and the sixth floor（the top floor） of a civil building in Lanzhou, respectively, but the three rooms have the same structure. For the two types of heating modes, comparisons were performed from aspects of energy consumption, thermal comfort, thermal stability, indoor air quality and running management mode. The results indicate that the floor radiation heating mode is superior to the radiator heating mode for the first floor and the top floor from viewpoint of energy consumption while the discrepancy between the two types of heating modes is very small for the third floor. The floor radiation heating mode is superior to the radiator heating mode from viewpoint of thermal comfort and thermal stability. However, under the floor radiation heating, the floor must be much cleaner than that of the radiator heating mode. In addition, the maintenance cost is very high for the floor radiation heating mode during operation. This study is full of theoretical meaning for reasonably choosing heating mode, objectively evaluating building energy consumption.