保温隔热层构造形式确定与三维传热模拟
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摘要
面对着高温和寒冷环境时,屋面处的保温隔热层发挥了重要作用。因此,保温隔热层的构造形式的确定非常重要。通过comsol软件对保温隔热层进行了三维传热模拟得出:材料组合的正置性和倒置性对隔热性能有着较大的影响;而保温隔热层的形状及拼接方式却对传热过程影响较小;界面处不同材料的选取导致热桥效应的增加,从而对保温隔热性能影响较大。合理的选择与确定保温隔热层的构造,对今后在高温和寒冷环境处的建筑有着重要的意义。
When facing the high temperature environment,the heat insulation layer on the roof played an important role. Therefore,the determination of the structural form of the heat insulation layer was very important. This paper used COMSOL software for thermal insulation layer of the three-dimensional heat transfer simulation. The results show that the material combination upright-put or bottom-up has great influence on the heat insulation performance,while the shape and splicing insulation layer on the heat transfer process have little effect; the interface material selection leads to the increase of thermal bridge effect,thus affecting thermal insulation performance greatly. Reasonable selection and determination of the structure of heat insulation layer are of great significance to the building in the hot environment at present.
When facing the high temperature environment,the heat insulation layer on the roof played an important role. Therefore,the determination of the structural form of the heat insulation layer was very important. This paper used COMSOL software for thermal insulation layer of the three-dimensional heat transfer simulation. The results show that the material combination upright-put or bottom-up has great influence on the heat insulation performance,while the shape and splicing insulation layer on the heat transfer process have little effect; the interface material selection leads to the increase of thermal bridge effect,thus affecting thermal insulation performance greatly. Reasonable selection and determination of the structure of heat insulation layer are of great significance to the building in the hot environment at present.
引文
[1]孙大明,周海珠,田慧峰.建筑热桥研究现状与展望[J].建筑科学,2010,26(2):128-134.
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[3]汪帆,杨若菡.改进架空屋面隔热效果的理论与实践[J].华侨大学学报(自然版),1994,15(3):309-312.
[4]许鸣,杨江金,周达良.节能建筑外墙保温隔热层厚度确定的设计要点[J].墙材革新与建筑节能,2003(12):30-32.
[5]刘华存.基于三维稳态传热模拟的自保温系统热工性能研究[D].杭州:浙江大学,2016,76-78.
[6]许凯,袁艳平,曹晓玲,等.建筑节能窗传热维数的数值分析[J].工业建筑,2014(s1):75-79.
[7]周竹发,王淑梅.低导热EPS保温砂浆的研究[J].新型建筑材料,2008,35(7):21-24.
[8]魏智,金光勇,彭博,等.毫秒脉冲激光辐照硅基PIN的温度场应力场数值分析[J].物理学报,2014,63(19):120-125.
[9]韩爱兴.在长江流域及周围地区组织实施《夏热冬冷地区居住建筑节能设计标准》的意义和作法[J].建筑技术,2002,33(10):731-733.
[10]张晋蓉.严寒地区居住建筑节能优化设计研究[D].沈阳:沈阳建筑大学,2013:10-12.
[2]杨晚生,郭开华.模块化植被屋面隔热层性能测试分析[J].新型建筑材料,2011,38(2):40-42.
[3]汪帆,杨若菡.改进架空屋面隔热效果的理论与实践[J].华侨大学学报(自然版),1994,15(3):309-312.
[4]许鸣,杨江金,周达良.节能建筑外墙保温隔热层厚度确定的设计要点[J].墙材革新与建筑节能,2003(12):30-32.
[5]刘华存.基于三维稳态传热模拟的自保温系统热工性能研究[D].杭州:浙江大学,2016,76-78.
[6]许凯,袁艳平,曹晓玲,等.建筑节能窗传热维数的数值分析[J].工业建筑,2014(s1):75-79.
[7]周竹发,王淑梅.低导热EPS保温砂浆的研究[J].新型建筑材料,2008,35(7):21-24.
[8]魏智,金光勇,彭博,等.毫秒脉冲激光辐照硅基PIN的温度场应力场数值分析[J].物理学报,2014,63(19):120-125.
[9]韩爱兴.在长江流域及周围地区组织实施《夏热冬冷地区居住建筑节能设计标准》的意义和作法[J].建筑技术,2002,33(10):731-733.
[10]张晋蓉.严寒地区居住建筑节能优化设计研究[D].沈阳:沈阳建筑大学,2013:10-12.