摘要
研究了夏热冬冷地区方管增强型GFRP夹芯屋面板的传热性能,基于该夹芯板的结构特点和等效传热理论,提出了适用于此类型夹芯板的热传递系数计算公式.采用稳态热传递防护热箱试验,对无填充材料和填充玻璃棉、挤塑聚苯板和聚氨酯泡沫板等4种方管增强型夹芯板的热工性能进行了试验研究.结果表明:该夹芯板热传递系数理论计算结果与试验结果接近,可用于工程上类似结构的热传递系数计算;除无填充材料外,采用玻璃棉、挤塑聚苯板和聚氨酯泡沫板等3种填充材料的方管增强型GFRP夹芯板的传热系数分别为0.553,0.471和0.377 W·m^-2·K^-1,均满足GB 50189—2015《公共建筑节能设计标准》中夏热冬冷地区对于屋面板热工性能的相关要求,其中填充聚氨酯泡沫板的方管增强型GFRP夹芯板的热桥效应最小,更适用于建筑屋面板.
The heat transfer performance of square tube reinforced GFRP sandwich roof panel in hot-summer and cold-winter area was investigated.Based on the structural characteristics and the equivalent heat transfer theory of sandwich panel,the calculation formula of heat transfer coefficient was proposed for the sandwich panel.The thermal properties of four kinds of square tube reinforced sandwich panels of unfilled material,glass wool,extruded polystyrene board and polyurethane were investigated by steady-state heat transfer protection hot box test.The results show that the theoretical calculation results of heat transfer coefficient of the square tube reinforced sandwich panels are close to the experimental results and can be used for the calculation of heat transfer coefficient of similar structures in engineering.The heat transfer coefficients of the square tube reinforced GFRP sandwich panels filled with three kinds of filler materials of glass cotton,extruded polystyrene board and polyurethane foam board are respective 0.553,0.471 and 0.377 W·m^-2·K^-1,and which can meet the requirements of design standard for energy efficiency of public buildings(GB 50189—2015)for thermal performance of roof panel in hot-summer and cold-winter area.The thermal bridge effect of square tube reinforced GFRP sandwich panels filled with polyurethane foam board is the least,which is more suitable for building roof panels.
作者
苏波
陈家乐
张抟
尹丹宁
SU Bo;CHEN Jiale;ZHANG Tuan;YIN Danning(Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang,Jiangsu 212013,China)
出处
《江苏大学学报（自然科学版）》
EI
CAS
北大核心
2020年第1期93-98,共6页
Journal of Jiangsu University：Natural Science Edition
基金
“十二五”国家科技支撑计划项目(2015BAL02B02)
国家自然科学基金青年科学基金资助项目(51508237)
江苏大学青年扶持基金资助项目(5621480001)
关键词
方管增强型夹芯板
GFRP
热工性能
热传递系数
热桥效应
square tube reinforced sandwich insulation panel
GFRP
thermal performance
heat transfer coefficient
thermal bridge effect
