摘要： 为研究夏热冬暖地区热反射屋顶涂料的性能,对建筑屋顶涂覆3种太阳光总反射率(TSR)不同(78.8%、56.6%、5.0%)的涂料。测试选取厦门某居住建筑顶层3个房间,其朝向、建筑外形、围护结构均相同。结果表明:非空调工况下,白屋顶、黄屋顶房间室内空气温度较黑屋顶房间平均降低约0.3℃、0.2℃;对白屋顶房间而言,在53.2%的测试时间中,房间温度处于舒适温度范围内,黑屋顶房间则为56.2%,黄屋顶房间则为53.9%,对比发现,在夏热冬暖地区,热反射屋面在冬季会对室内舒适性产生不利影响,但影响较小,夏季节能效果更佳。
关键词:
热反射屋顶,
太阳辐射,
反射率,
热性能
Abstract: In order to study the thermal performance of cool coatings in hot summer and warm winter zone, three different coatings(white, yellow and dark)with total solar reflectance of 78. 8%, 56. 6% and 5. 0% respectively were applied to three identical rooms in the same residential building in Xiamen. The rooms were all on the top floor of the building with the same floor area, envelope material and orientation, Indoor temperatures of the three rooms were recorded from 4th to 27th February. The results showed that in a non-air-conditioned building, the indoor temperatures of the room with white roof and yellow roof were 0.3 ℃ and 0.2 ℃ lower than that of room with the black roof on average. The hours that indoor temperatures fell within thermal comfort range accounted for 53.2%, 53. 9% and 56. 2% in the experimenta period for white, yellow and dark roof. Thermal reflective roof had slight negative effect on indoor thermal comfort in winter and significant effect on energy saving in summer.
Key words:
thermal reflective roof,
solar radiation,
solar reflectance,
thermal performance
庄超群, 高玉羡, 高亚锋, 李滨滨, 涂建敏, 彭军芝. 热反射涂料性能及其在冬季非空调工况下的应用实测研究[J]. 涂料工业, 2015, 45(10): 55-59.
Zhuang Chaoqun, Gao Yuxian, Gao Yafeng, Li Binbin, Tu Jianmin, Peng Junzhi. Performance of Thermal Reflective Coatings for Non-Air-Conditioned Buildings in Winter[J]. Paint & Coatings Industry, 2015, 45(10): 55-59.