浅埋地下建筑围护结构传热计算方法研究  

Study on the Heat Transfer Calculation Method of Shallow Buried Underground Building Envelope

作　　者：刘妙坤 LIU Miaokun(Shandong Institute of Commerce and Technology,Jinan,Shandong 250103,China)

机构地区：[1]山东商业职业技术学院,山东济南250103

出　　处：《山东商业职业技术学院学报》2024年第5期109-116,共8页Journal of Shandong Institute of Commerce and Technology

基　　金：山东省自然科学基金项目(ZR2020ME209)。

摘　　要：现有地下建筑围护结构传热计算方法无法较好地与实际工程设计相结合。为对地下建筑围护结构传热计算方法进行优化设计,提出地下建筑围护结构三维非稳态传热计算方法。选取济南市作为寒冷地区典型城市,在MATLAB软件中采用有限容积法进行求解。提出了地下建筑外围墙体名义传热系数的概念,通过大量算例得到三种不同类型地下建筑围护结构在室外设计温度条件下的传热量,并进一步拟合出适合寒冷地区工程设计计算用的传热系数公式。结果表明:各拟合公式均方差r^(2)>0.90,根据计算公式得到的名义传热系数拟合效果良好,能够较好地将浅埋地下建筑传热相关理论与工程实际结合。The existing heat transfer calculation method of underground building envelope can not be well combined with actual engineering design.In order to optimize the heat transfer calculation method of underground building envelope,a three-dimensional unsteady heat transfer calculation method of underground building envelope is proposed.Jinan is selected as a typical city in cold area,and the finite volume method is used to solve it in MATLAB software.The concept of nominal heat transfer coefficient of the outer wall of underground building is put forward,and the heat transfer of three different types of underground building envelope under outdoor design temperature conditions is obtained through a large number of examples.Furthermore,the formula of heat transfer coefficient suitable for engineering design and calculation in cold areas is fitted.The results show that the mean square error r^(2)of each fitting formula is greater than 0.90.The fitting effect of the nominal heat transfer coefficient obtained from the calculation formula is good,which can better combine the heat transfer theory of shallow underground buildings with engineering practice.

关 键 词：地下建筑 有限容积法 三维非稳态导热 传热系数 

分 类 号：TU921[建筑科学—建筑设计及理论]