摘要
模卡式拼装节能墙体采用条形榫卯砌块拼装式施工方法,可以拼装成各种尺寸的内隔墙和非承重墙.将其看成两向非均质围护结构计算其平均热阻,利用平壁稳定传热的基本理论计算其传热系数,最后对其保温层的经济厚度进行了讨论.计算分析表明,模卡式拼装节能墙体传热系数仅为0.689 W/(m2.K),远低于其他常用墙体,具有良好的节能效果.墙体的聚苯板厚度采用0.08 m时,能取得最佳经济指标,墙体的传热系数仅为0.400 W/(m2.K).
The mortised modular energy-saving wall is a new heat-insulating system, which can save energy efficiently by holding temperature in the gap between two wallboards. Joint together by mortises and tenons, various inner partition and nonbearing walls can be provided in a modular way. Considered the wall as two-dimension heterogeneity construction enclosure, the average thermal resistance was calculated. Based on the theories of stable heat-ransfer of siding, heat- transfer coefficient is discussed, as well as the economical thickness of insulating layer of the new-type wallboard. Calculation and analysis indicated that the heat-transfer coefficient of the new-type wall is 0. 689 W/（m^2·K） only, far less than that of any other walls. And it means that the new type wall is highly energy-saving. When the polystyrene board thickness is 0.08 m, the wall is most economical with a heat-transfer coefficient down to 0.400 W/（m^2·K）.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第6期871-874,共4页
Journal of Northeastern University(Natural Science)
基金
建设部科技计划项目(06-K5-22)
沈阳市科技计划项目(10632901-1-001)
关键词
节能建筑
模卡式拼装节能墙体
传热阻
经济厚度
传热系数
energy-saving building
mortised modular wall
thermal resistance
economical thickness
heat-transfer coefficient
