太阳能辅助火炕供暖系统热工性能

目的研究毛细管网型太阳能辅助火炕供暖系统的热工性能和效果.提出利用毛细管网型火炕的供暖模式,提高炕面的舒适性.方法利用数值模拟和实验测试两种手段分析两个对比房间的炕面温度和室内温度的变化趋势和规律.结果测试数据显示普通房间炕头、炕中、炕尾的平均温度分别为65.7℃、43.28℃、39.82℃,炕面温差大于20℃,而采用该系统的房间炕头、炕中、炕尾的平均温度分别为51.34℃、38.26℃、33.79℃,普通室内房间平均温度为12.2℃,太阳能辅热火炕房间室内平均温度为18.5℃,比普通房间室内平均温度高6.3℃.结论毛细管网末端热惯性小,运行时室内温度迅速升高,炕面的温度分布比普通火炕均匀,可依据主观意愿实时改善室内热环境,辅助火炕运行时有效地改善了农居室内及炕面的热舒适性.

Experimental Study on Solar Added Kang Heating System

This paper studies solar energy with capillary network systems as the added heating measure of kang. The influence of the system on the surface temperatures of Kang and the indoor temperature w ere studied by experiment. The tested result show s that the average temperatures of the head,medium and tail of traditional Kang in a normal room are 65. 7 ℃,43. 28 ℃,and 39. 82 ℃. The difference in temperature of Kang surface is higher than 20 ℃. The average temperatures of the head middle and tail of the Kang using this system are 51. 34 ℃,38. 26 ℃ and 33. 79 ℃. Comparing tw o groups of data,w e can get the conclusion that the distribution of temperature in the new system Kang is more balanced than traditional Kang,w hich improves the surface comfort of Kang. The average indoor temperature w ith solar energy auxiliary Kang is 18. 5 ℃, w hich is 6. 3 ℃ higher than ordinary room. Due to the small thermal inertia of capillary netw ork,the indoor temperature rises quickly w hen the system is running. It can make quality improvement of indoor thermal environment realtime,w hich greatly improves the thermal comfort of the Kang surface and indoor temperature.