| Thermodynamic Analysis of River Water Fouling on Constant Wall Temperature Tube of Small Diameter |
| |
| 作者姓名： | WANG Zi yun LONG En shen FU Xiang zhao and WANG Yong |
| |
| 作者单位： | College of Architecture and Environment,Sichuan University,Chengdu 610065,P.R.China;China Railway Eryuan Engineering Group CO.LTD,Chendu 610031,P.R.China;;College of Architecture and Environment,Sichuan University,Chengdu 610065,P.R.China;;College of Urban Construction and Environmental Engineering,Chongqing University,Chongqing 400045,P.R.China;College of Urban Construction and Environmental Engineering,Chongqing University,Chongqing 400045,P.R.China |
| |
| 摘 要： | In order to improve utilization of cold and heat source from river, turbulence theory and entropy generation theory were adopted to analyze the effect of fouling on convective heat transfer performance in small diameter tube of constant wall temperature.It is found that the entropy generation caused by conduction of fouling plays a more important role in total entropy generation of heat transfer process through a duct than that in cveast rate of caused by temperature difference.The entropy generation caused by viscous flow is more than the entropy generation caused by temperature difference in flow with bigger Reynolds and small radius.The increase rate of entropy generation monotonically increase with Reynolds and the generation process of fouling resistance.Thereafter, the effect of fouling resistance on the heat transfer performance of water source heat pump heat exchanger should be paid more attention, when river water are used as the cold and heat source of heat pump.
|
| 关 键 词： | heat exchange tube fouling resistance thermodynamic analysis entropy generation |
| 收稿时间： | 2009/9/20 0:00:00 |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
| 点击此处可从《保鲜与加工》下载免费的PDF全文 |
|
