电加热烘干房模型内气体流动与传热的数值模拟研究  

Numerical Simulation of Air Flow and Heat Transfer in Electric Heating Drying Room Model

作　　者：李树谦 周晴晴 王晨 王浩然 岳亮丞 LI Shu-qian;ZHOU Qing-qing;WANG Chen;WANG Hao-ran;YUE Liang-cheng(Department of civil engineering,Hebei University of Water Resources and Electric Engineering,061001,Cangzhou,Hebei,China;Financial department,Hebei University of Water Resources and Electric Engineering,061001,Cangzhou,Hebei,China;Hebei Provincial Data Center Phase Change Heat Management Technology Innovation Center,061001,Cangzhou,Hebei,China)

机构地区：[1]河北水利电力学院土木工程系,河北省沧州市061001 [2]河北水利电力学院财务处,河北省沧州市061001 [3]河北省数据中心相变热管理技术创新中心,河北省沧州市061001

出　　处：《河北水利电力学院学报》2022年第3期28-36,共9页Journal of Hebei University Of Water Resources And Electric Engineering

基　　金：国家自然科学基金项目(51976052);河北省高等学校科学技术研究重点项目(ZD2019032);河北省高等学校基本科研业务费研究项目(SYKY2115)。

摘　　要：文中利用数值模拟研究的方法对烘干房模型内部瞬时流场和温度场进行了分析。搭建了PTC(Positive Temperature Coefficient)烘干房模型实验装置,获取了典型位置处的温度数据,基于所获取的温度数据验证了Airpak数值模拟结果的可靠性。研究发现PTC横向平行摆放模型中在送风口风速和风温为2 m/s、20℃情况下,PTC基板温度达到了208℃,格栅处温度达到了60℃,烘干房内部大部分位置风速达到了0.8 m/s。通过温度场及速度场的对比确定了PTC的最佳排列方式为横向平行排列。In this paper,the instantaneous flow field and temperature field in the drying room model are analyzed by using the method of numerical simulation.The PTC drying room model experimental device is built,and the temperature data at typical locations are obtained.Based on the obtained temperature data,the reliability of Airpak numerical simulation results is verified.On this basis,by changing the placement position of PTC,it is found that the temperature of PTC substrate in staggered placement,longitudinal parallel placement and transverse parallel placement models reaches 199℃,206℃and 208℃respectively,and the temperature at the grid is 57℃,53℃and 60℃respectively.Through the comparison of temperature field and velocity field,it is determined that the best arrangement of PTC is horizontal parallel arrangement.

关 键 词：AIRPAK 数值模拟 PTC发热元件 流场 温度场 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]