对流-辐射型墙面板换热器供热性能模拟
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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%。
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.
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.
引文
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[9]袁旭东，张秀平，吴俊峰．辐射与对流一体化空调末端供暖舒适性研究[J]．制冷技术，2018,38(1):51-54．
[10]WEI X L,ZENG Z C,LU J F.Experiment of direct radiant floor heating system with air-source heat pump[J].Heating Ventilating Air Conditioning,2010(7):103-107．
[11]李念平，孙烨瑶，钱佳炜．贴附射流辐射冷顶板复合空调系统的性能研究[J]．湖南大学学报（自然科学版），2015,42(11):119-124．
[12]空气源热泵直热式辐射供暖技术规程：DB13(J）/T168-2014[S]．
[13]董建锴，闫森，顾冬明，等．基于辐射和对流换热新型供暖末端的空气源热泵除霜性能试验研究[J]．制冷与空调，2018,18(8):83-88.
[2]兰丽，连之伟，宋沅沛．办公建筑人员工作效率室内环境影响因素及经济分析[J]．土木建筑与环境工程，2012,34(S2):135-139．
[3]CELIK E,GEDIK G,PARLAKYILDIZ B.The performance evaluation of the modular design of hybrid wall with surface heating and cooling system[J].Architecture,2016,13:31-37．
[4]BCKSTRM D,JOHANSSON R,ANDERSSONK.On the use of alternative fuels in rotary kiln burners-An experimental and modelling study of the effect on the radiative heat transfer conditions[J].Fuel Processing Technology,2015,138:210-220．
[5]卢军，陈金花，高殿策．住宅用地板辐射供冷系统的实验分析[J]．暖通空调，2007,37(12):20-24．
[6]WANG D J,WU C J,LIU Y F.Experimental study on the thermal performance of an enhanced-convection overhead radiant floor heating system[J].Energy and Buildings,2017,135:233-243．
[7]张伦，刘晓华，江亿．对流强化式辐射板实验与性能分析[J]．暖通空调，2011,41(1):38-41．
[8]刘龙斌，丁云飞，聂文庆．热湿地区直膨式辐射顶板空调系统模拟分析[J]．节能，2018,37(1):27-30．
[9]袁旭东，张秀平，吴俊峰．辐射与对流一体化空调末端供暖舒适性研究[J]．制冷技术，2018,38(1):51-54．
[10]WEI X L,ZENG Z C,LU J F.Experiment of direct radiant floor heating system with air-source heat pump[J].Heating Ventilating Air Conditioning,2010(7):103-107．
[11]李念平，孙烨瑶，钱佳炜．贴附射流辐射冷顶板复合空调系统的性能研究[J]．湖南大学学报（自然科学版），2015,42(11):119-124．
[12]空气源热泵直热式辐射供暖技术规程：DB13(J）/T168-2014[S]．
[13]董建锴，闫森，顾冬明，等．基于辐射和对流换热新型供暖末端的空气源热泵除霜性能试验研究[J]．制冷与空调，2018,18(8):83-88.