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Impact of light-weight external thermal insulation materials on building surrounding thermal environment in summer 被引量:6
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作者 李楠 罗国志 +1 位作者 李百战 黄彦祺 《Journal of Central South University》 SCIE EI CAS 2012年第6期1639-1644,共6页
The method for calculating wall surface heat storage coefficient was introduced,and the coefficients of several common walls with light-weight external thermal insulation materials and the traditional solid clay brick... The method for calculating wall surface heat storage coefficient was introduced,and the coefficients of several common walls with light-weight external thermal insulation materials and the traditional solid clay brick wall were calculated.In order to study the impact of light-weight external thermal insulation materials,a contrasting experiment was carried out between an external insulated room and an uninsulated room in August,2010,in Chongqing,China.The result shows that outside surface heat storage coefficient of the insulated wall is much less than that of the traditional wall.However,during sunny time,the surface temperature of external walls of the insulated room is obviously higher than that of the uninsulated room.In different orientations,due to different amounts of solar radiation and being irradiated in different time,the contrasting temperature difference(CTD) appears different regularity.In a word,using light-weight external thermal insulation materials has a negative impact on building surrounding thermal environment and people's health.Finally,some suggestions on how to eliminate the impact,such as improving the surface condition of the building envelop,and plating vertical greening,are put forward. 展开更多
关键词 surface heat storage coefficient external thermal insulation BUILDING thermal environment building envelop
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Weatherability Studies on External Insulation Thermal System of Expanded Polystyrene Board,Polystyrene Granule and Polyurethane Foam 被引量:5
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作者 尹秀琴 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2010年第6期1027-1032,共6页
Atmospheric exposure tests including two experimental stages of high temperature-spraying water cycle and heating-refrigeration cycle were carried out on three currently used ETIS of expanded polystyrene(EPS) board,... Atmospheric exposure tests including two experimental stages of high temperature-spraying water cycle and heating-refrigeration cycle were carried out on three currently used ETIS of expanded polystyrene(EPS) board,polystyrene granule mortar and polyurethane foam in order to study the weatherablility of external thermal insulation system(ETIS).The change rules of adhesive strength were hereby studied at different time period of atmospheric exposure tests.The experimental results show that the adhesive strength of three kinds of ETIS changes a little during high temperature-spraying water cycle,but the adhesive strength of ETIS with EPS board decreases significantly after heating-refrigeration cycle.The lowering rate of adhesive strength with painting finishes is obviously faster than that of tile finishes for ETIS of EPS board during heating-refrigeration cycle.The weatherability of ETIS with EPS board is worse than the other two,and ETIS of polystyrene granule mortar and polyurethane foam are more suitable than ETIS of EPS board in cold area. 展开更多
关键词 external thermal insulation system EPS board polystyrene granule atmospheric exposure tests adhesive strength
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Finite Element Analysis of External Thermal Insulation Composite System:Thin Rendered Expanded Polystyrene Board
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作者 薄海涛 李惠强 尹秀琴 《Journal of Southwest Jiaotong University(English Edition)》 2009年第4期325-329,共5页
The finite element model of an external thermal composite insuiation system, thin rendered expanded polystyrene ( EPS ) board, was built with ANSYS 1.0, which had two forms: one with window and one without window. ... The finite element model of an external thermal composite insuiation system, thin rendered expanded polystyrene ( EPS ) board, was built with ANSYS 1.0, which had two forms: one with window and one without window. The finite element analysis results show that the EPS board had very good insulation capacity at both high or low temperature, stress concentration was produced in the center of wall and around window, and the maximum deformation was observed at the edge of board and the minimum deformation was in the center. 展开更多
关键词 External thermal insulation system Finite element Stress concentration DISPLACEMENT
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