热管置入式墙体非稳态传热模型与传热特性分析

Research on Nnon-Steady Heat Transfer Model and Heat Transfer Characteristics of the Wall Implanted with Heat Pipes

将热管置入式墙体传热模型分解为常规墙体传热模型和热管传热模型,并借助Z传递函数法建立非稳态传热模型.以天津市作为典型城市,研究了热管置入式墙体在采暖季的工况,分析了典型日热管置入式墙体的传热特性.结果表明:在热管工况优良时,热管置入式墙体能够明显提高得热量;热管工作期间,放热段内表面的平均温度提升1.22℃左右.

The heat transfer model of the wall implanted with heat pipes(WIHP) is divided into heat transfer model of the traditional wall and heat transfer model of heat pipes. The non-steady heat transfer model of WIHP was constructed by Z-transfer function. As a typical city,Tianjin was taken as a sample to study the WIHP during the heating season. The heat transfer characteristics of the WIHP on a typical day were analyzed. The results show that in the condition of better heat pipes operation,the WIHP can significantly improve heat gain. The average temperature of the inner surface of the condensing section is increased by 1.22 ℃ during working condition of the WIHP.