热管置入式墙体实验研究  

EXPERIMENTAL INVESTIGATION ON THE WALL IMPLANTED WITH HEAT PIPES

作　　者：张志刚[1] 孙志健[1] 

机构地区：[1]天津城建大学能源与安全工程学院,天津300384

出　　处：《太阳能学报》2016年第3期684-689,共6页Acta Energiae Solaris Sinica

基　　金：国家科技支撑计划(2013BAJ09B03)

摘　　要：为提高冬季建筑墙体所吸收太阳能利用率,提出在墙体中置入热管的新型被动式太阳能利用技术,并对其传热特性和节能性进行理论研究和实验分析。结果表明,热管充液率为28.1%的墙体等效传热系数可在0.652~0.901 W/(m2·K)之间按需变化,墙体内表面温度平均提高1.28℃,可有效改善室内热环境;墙体中热管的最佳充液率为30%;在天津地区典型年冬季工况下,墙体累计传入室内热量可达8889.62 kJ/m^2,外墙热损失降低8.72%(即墙体本身的节能率为8.72%)。A new type of passive solar energy utilization technology, the wall implanted with heat pipes, is put forward in this paper. The heat transfer and energy saving characteristics of the wall are investigated theoretically and experimentally. The results showed that the equivalent heat transfer coefficient of the wall can be adjustable in the range of 0.652-0.901W/（m2· K）, the average temperature of the inner surface increases by 1.28℃ under the condition of filling ratio is 28.1%. Therefore, such a type of wall improves the indoor thermal environment apparently. The best filling ratio of heat pipes implanted in the wall is about 30% .On the typical year winter conditions in Tianjin area, the heat transferred by the wall can reach 8889 kJ/m2, the heat loss of exterior wall reduces by 8.72% （i.e.the energy saving rate of the wall is 8.72%）.

关 键 词：被动式技术 太阳能 热管置入式墙体 等效传热系数 

分 类 号：TK511.2[动力工程及工程热物理—热能工程]