相变蓄能采暖地板的热性能研究

Thermal Performance of Phase Change Energy Storage Floor Heating System

以相变蓄能地板采暖房间为背景,抽象出二维传热方腔模型并进行数值模拟,对比相变地板系统和普通地板系统蓄放热性能差异。分析相变材料导热系数、相变潜热和相变温度等物性因素对地板系统蓄放热性能的影响。研究结果表明相变地板系统蓄放热性能良好,腔内温度波动小,舒适性高。

A two-dimensional square cavity model with heating transfer was established from the heating room with floorboards of Phase Change Material（ PCM）. The thermal performance difference between the PCM floors and the concrete floors is compared by the simulation. The effect of phase change temperature,latent heat and thermal conductivity of PCM on the thermal performance is analyzed. The PCM floor has good thermal performance,can reduce the cavity temperature fluctuations and improve the cavity thermal comfort.