摘要
提出一种结构简单,可实现对流换热和辐射换热一体化的对流-辐射型墙面板换热器,建立其供热模型并进行试验验证,分析翅片高度、翅片间距和管中心距等对供热性能的影响。研究结果表明,3个结构参数对换热器供热性能均有一定影响:当翅片高度由20mm增大到30mm时,墙面板换热器单位面积总换热量增加11.9%;翅片间距由10mm增大到20mm,管中心距由30mm增大到45mm时,墙面板换热器单位面积换热量分别减少9.2%和4.3%。
One kind of convection-radiation wall panel heat exchanger is proposed,which has simple structure and can realize the integration of convection heat transfer and radiation heat transfer. The heating model is established and validated by test. The influence of parameters such as fin height,fin spacing and tube center distance on heating performance is analyzed. The research results show these three structural parameters have a certain impact on the heating performance of the heat exchanger. As the fin height increases from 20 mm to 30 mm,the total heat exchange capacity of the wall panel heat exchanger is increased by 11.9%;as the fin spacing increases from 10 mm to 20 mm,and the pipe center distance increases from 30 mm to 45 mm,the total heat exchange capacities of the wall panel heat exchanger are decreased by 9.2% and 4.3%,respectively.
作者
陈施佳
陈之华
董建锴
柴永金
郑文科
Chen Shijia;Chen Zhihua;Dong Jiankai;Chai Yongjin;Zheng Wenke(Harbin Institute of Technology;Key Laboratory of Urban and Rural Environmental Science and TechnologyIndustry and Information Technology Department of Cold Region;China Nuclear Power Engineering Co., Ltd.;Xi an University of Architecture and Technology)
出处
《制冷与空调》
2019年第8期28-32,共5页
Refrigeration and Air-Conditioning
基金
国家自然科学基金项目(51608146)
关键词
墙面板换热器
供热性能
对流换热
辐射换热
数值模拟
wall panel heat exchanger
heating performance
convective heat transfer
radiation heat transfer
numerical simulation
