居住建筑丁字墙热(冷)桥传热特性分析  

HEAT TRANSFER CHARACTERISTICS ANALYSIS OF THERMAL BRIDGE FOR T-SHAPED WALL IN RESIDENTIAL BUILDINGS

作　　者：李永安[1] 李常河[2] 

机构地区：[1]山东建筑大学热能工程学院,山东济南250101 [2]中国科学院广州能源研究所,广东广州510640

出　　处：《低温建筑技术》2008年第2期131-133,共3页Low Temperature Architecture Technology

基　　金：山东省科技攻关计划项目(2005GG4207001)

摘　　要：分析了目前山东省采暖居住建筑能耗的现状,阐述了建筑热(冷)桥对采暖能耗的影响,建立了丁字墙建筑热(冷)桥的数学模型。对丁字墙建筑热(冷)桥的表面温度及热流密度进行了动态仿真,进而,利用实验的方法,对丁字墙建筑热(冷)桥的传热特性进行了研究,揭示了丁字墙建筑热(冷)桥在冬季采暖期间的传热规律,这对于降低采暖居住建筑能耗有一定的指导意义。Situation of energy consumption of heating for residential buildings in Shandong Province is analyzed. The thermal bridges effect on energy consumption of heating is discussed. Mathematical models of thermal bridge for T - shaped wall are derived. Dynamic simulation of surface temperature and heat current density is carried out. Heat transfer characteristics of thermal bridge for T - shaped wall were investigated and heat transfer regular of thermal （cool）bridge for T shaped in winter is revealed.That is of interest for saving energy consumption of heating in residential buildings.

关 键 词：居住建筑 热桥 冷桥 能耗 

分 类 号：TU111.21[建筑科学—建筑理论]