相变蓄能火炕热舒适性的试验  

Experiment on thermal comfort performance of phase-change energy storage Kang

作　　者：李刚[1] 池兰[1] 冯国会[1] 牛润萍[2] 罗颖[1] 佘灿明 

机构地区：[1]沈阳建筑大学市政与环境工程学院,沈阳110168 [2]北京建筑大学供热供燃气通风及空调工程北京市重点实验室,北京100044

出　　处：《农业工程学报》2016年第11期244-249,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金："十二五"科技支撑计划项目(2012BAJ26B02);住房和城乡建设部项目(2013-K1-41);供热供燃气通风及空调工程北京市重点实验室研究基金资助课题(NR2012K04)

摘　　要：传统火炕炕面温差很大,为提高炕面温度分布的均匀性、延长炕面供暖时间,将石蜡与炕体相结合以充分利用相变材料的恒温蓄换热特性,对比测试传统火炕房间与相变火炕房间的相关温度。测试结果表明:传统火炕的炕面温差很大,最大温差接近80℃,而相变蓄能火炕的炕面温度分布较为均匀,炕面最大温差仅5℃;此外,相变火炕房间的室内温度熄火后仍呈现上升趋势,直至凌晨之后才开始下降,其室内平均温度比普通房间高2.93℃。相变蓄热火炕显著改善了炕面温度分布的均匀性,有效延长了供暖时间并提高了室内温度,因而有助于改善农居室内及炕面的热舒适性。Kang plays an important and indispensable role of winter heating in the rural houses of northern China and some extremely frigid zones. The surface temperature difference of traditional Kang is too large and its indoor temperature is too low, which can＇t provide good thermal comfort. In order to improve the uniformity of Kang＇s surface temperature distribution, increase the indoor thermal comfort and prolong the Kang＇s heating time, this paper presented the phase-change energy storage Kang which combined paraffin and traditional Kang to take full advantage of the heat storage of phase-change materials. In order to analyze Kang＇s surface temperature distribution and indoor thermal comfort of this phase-change energy storage Kang, a contrast experiment was carried out in 2 experimental rooms which basically had the same size, the same structure and the same pattern located in ecological park of Shenyang Jianzhu University. Comparative analysis method was used in the experiment to compare the thermal performance of the phase-change energy storage Kang and the traditional Kang. The 2 kinds of Kang were respectively set in the different experimental rooms, which had the same heating time and burned the same amount of fuel wood（6 kg）. The experiment was operated from 8：00 am, March 15 th to 8：00 am, March 18 th in 2013, and fired 3 times every day, and each time lasted 90 minutes, which were respectively 7：30-9：00, 11：30-13：00 and 17：00-18：30. The XMZ＊-J series universal input circuit detector was used to test and record the experimental data about the surface temperatures of different Kang and the indoor temperatures of experiment rooms. The test data of March 17^th showed： the average temperatures of the head, medium and tail of traditional Kang were 61.95, 37.10 and 32.57 ℃, respectively, and the surface temperature difference of traditional Kang was around 30 ℃; while the average temperatures of the head, middle and tail of phase-change energy storage Kang were 40.87, 37.10 and 3

关 键 词：温度 相变材料 蓄热 石蜡 火炕 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]