赣南地区低温地板辐射采暖效果研究

赣南地区属于夏热冬冷地区, 被列为非采暖区, 冬季室内热舒适性较差.由于各方面的原因, 人们对居住环境的要求越来越高, 迫切需要改善室内热舒适性.结合赣南地区冬季气候及地域特点, 研究低温地板辐射采暖的效果, 并与空调采暖进行对比.利用CFD理论分别对该采暖室在2种采暖方式下的室内热环境进行数值模拟, 分析室内空气温度场、湿度场, 并用PMV-PPD评价指标对室内热环境进行评定.研究表明, 与空调采暖相比低温地板辐射采暖:室内热环境更加舒适; 室内设计温度可降低2~3℃, 能节约15%的能量, 有利于节能环保. 

Effect of low temperature floor radiant heating in south Jiangxi area

Although it is cold in winter and hot in summer, the south Jiangxi region is classified as non-heat-ing zone, where indoor thermal comfort is poor in winter. Due to various reasons, the demands for comfort liv-ing environment are growing, which leads to an urgent need to improve the indoor environment. Given the fea-tures of climate and geography in south Jiangxi area, the effect of low temperature floor radiant heating was re-searched and compared with that of heating of the air conditioning. Numerical simulations under two kinds of heating means for thermal environment in the heating room using CFD software were conducted to analyze air temperature field and humidity field. Indoor thermal environment was used by the PMV-PPD to evaluate index. The results show that compared with air conditioning, low temperature floor radiant heating is more comfort-able with indoor design temperature reducing 2~3 ℃, and energy saving of 15 %, which is beneficial to energy conservation and environmental protection.