多孔供暖竖板热性能及室内热环境研究

Experimental study on thermal performance and indoor thermal environment of porous heating vertical panels

提出了一种新型多孔供暖竖板结构,具有调节灵活、热响应快、节省地面空间、卫生条件好等特点。针对该新型多孔供暖竖板,搭建了全尺寸性能分析实验室平台系统,测试了不同供水温度、孔口直径、布孔密度等关键因素影响下的辐射、对流供暖特性及室内热环境分布规律。从结果可见:对于竖板传热性能增强方面,供水温度影响最为显著,孔口直径、布孔密度次之;上下孔热压自然通风引起的对流换热效果明显,最大孔口速度可达0.12 m/s;该辐射竖板在水平和竖直方向营造了较为均匀良好的室内环境温度。

Proposes a new type of porous heating vertical panel,which has the characteristics of flexible regulation,fast thermal response,space saving and good sanitary conditions.Builds a full-scale experimental system about the new structure in a laboratory,and tests the radiation and convection heat transfer characteristics,indoor thermal environment distribution under the conditions of different supply water temperatures,orifice diameters and orifice densities.The results show that,in respect of the panel heating capacity,the supply water temperature plays the most important role,followed by the orifice diameter and orifice density.The convection heat transfer effect caused by the stack effect pressure of the top and bottom orifice air is obvious,and the maximum orifice air speed can reach 0.12 m/s.The radiant vertical panel creates a relatively uniform indoor temperature in both horizontal and vertical directions.