【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20 mm增大到30 mm时,墙面板换热器单位面积总换热量增加11.9%;翅片间距由10 mm增大到20 mm,管中心距由30 mm增大到45 mm时,墙面板换热器单位面积换热量分别减少9.2%和4.3%。更多还原

【Abstract】 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 from10 mm to 20 mm,and the pipe center distance increases from30 mm to 45 mm,the total heat exchange capacities of the wall panel heat exchanger are decreased by 9.2%and 4.3%,respectively.更多还原