工业膜建筑曲面屋顶夏季得热量分析  

Heat Gain Analysis of Curved Roof of Industrial Membrane Building in Summer

作　　者：王欢[1] 高明辰 刘杰[1] 樊越胜[1] 田国记 刘长周 WANG Huan;GAO Mingchen;LIU Jie;FAN Yuesheng;TIAN Guoji;LIU Changzhou

机构地区：[1]西安建筑科技大学,陕西西安710055 [2]中石化南京工程有限公司,江苏南京210049

出　　处：《煤气与热力》2023年第2期32-38,共7页Gas & Heat

基　　金：国家自然科学基金青年项目(5180080465)。

摘　　要：以工业膜建筑曲面屋顶的得热量为研究出发点,利用MATLAB计算膜建筑曲面屋顶夏季得热量,分析影响曲面屋顶得热量的因素。研究发现:曲面屋顶太阳辐射得热量占比最大,太阳高度角是影响曲面屋顶太阳辐射得热量的主要因素之一,曲面屋顶的太阳辐射得热量随太阳高度角增大而增大。拱高和跨度也是影响曲面屋顶太阳辐射得热量的关键因素。影响曲面屋顶对流换热量的主要因素是室外风速,室外风速越大,对流换热量越大。曲面屋顶长波辐射换热量与当量温差有关,当量温差越大,长波辐射换热量越大。Taking the heat gain of curved roof of industrial membrane building as the research starting point,the heat gain of curved roof of membrane building in summer is calculated by MATLAB,and the factors affecting the heat gain of curved roof are analyzed.It is found that the solar heat gain of curved roof accounts for the largest proportion,and the solar height angle is one of the main factors affecting the solar heat gain of curved roof. The solar heat gain of curved roof increases with the increase of solar height angle. Arch height and span are also key factors affecting solar heat gain of curved roof. The main factor affecting the convective heat transfer of curved roof is the outdoor wind speed. The greater the outdoor wind speed,the greater the convective heat transfer. The long-wave radiation heat transfer of curved roof is related to the equivalent temperature difference. The greater the equivalent temperature difference,the greater the long-wave radiation heat transfer.

关 键 词：膜建筑 曲面屋顶 得热量 拱高 跨度 

分 类 号：TU832.02[建筑科学—供热、供燃气、通风及空调工程]