Thermal stress investigation of glazing unit filled with paraffin in cold regions  

寒冷地区含石蜡玻璃结构的热应力研究

作　　者：ZHOU Ying-ming WU Guo-zhong LI Dong Müslüm ARICI WANG Ze-mei FU Shi-bo Çağatay YILDIZ AArmağan ARICI 周英明;吴国忠;李栋;Müslüm ARICI;王泽美;付世博;Çağatay YILDIZ;AArmağan ARICI(School of Architecture and Civil Engineering,Northeast Petroleum University,Daqing 163318,China;College of Civil Engineering and Architecture,Beibu Gulf University,Qinzhou 535011,China;Department of Mechanical Engineering,Faculty of Engineering,Kocaeli University,Kocaeli 41001,Turkey)

机构地区：[1]School of Architecture and Civil Engineering,Northeast Petroleum University,Daqing 163318,China [2]College of Civil Engineering and Architecture,Beibu Gulf University,Qinzhou 535011,China [3]Department of Mechanical Engineering,Faculty of Engineering,Kocaeli University,Kocaeli 41001,Turkey

出　　处：《Journal of Central South University》2021年第11期3599-3612,共14页中南大学学报（英文版）

基　　金：Project(52078110) supported by the National Natural Science Foundation of China;Project(2018KYQD15) supported by Beibu Gulf Universityt,China。

摘　　要：In this study,based on the established heat transfer and mechanical stress models,thermal stress distribution of glazing unit filled with paraffin was studied for various temperature differences between indoor and outdoor conditions.The strain produced on the surface of glazing unit filled with paraffin varies greatly in the outdoor temperature range of-30℃-40 ℃.Furthermore,phase change material(PCM) layer between the glass panes significantly affects the strain values at different temperatures,which can respectively reach up to about 250×10^(-6) and down to-300×10^(-6) for tensile and compressive strains once the paraffin is in liquid state.Additionally,impacts of boundary conditions on the strain values are more pronounced within the distance of 0.01 m from the edges of the glazing window.The presented model and outcomes can be used as a guide to simulate thermal stress in glazing units filled with paraffin.本文建立含石蜡玻璃结构传热模型和热应力模型,通过实验对建立的数学模型进行验证,模拟结果与实验结果吻合较好。基于已建立的数学模型,研究了不同室内外温差下含石蜡玻璃结构的热应力分布。当室内温度设置为25℃,室外温度在-30℃到40℃变化时,石蜡层对玻璃的应变值影响较大,玻璃结构表面的应变值可从250×10^(-6)拉应变变化到-300×10^(-6)压应变。此外,玻璃结构四周约束条件对应变值的影响也较大,当四边设置成固定约束时,玻璃结构边缘影响范围约0.01 m。建立的数学模型和计算结果,可为含石蜡玻璃结构热应力分析提供依据。

关 键 词：glazing unit PARAFFIN thermal stress temperature difference stress distribution 

分 类 号：TQ171.1[化学工程—玻璃工业]