| 同轴换热器内流动与换热的实验研究 |
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| 引用本文： | 盘彩美,王文昊,崔晓钰.同轴换热器内流动与换热的实验研究[J].上海理工大学学报,2012,34(3):293-297. |
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| 作者姓名： | 盘彩美 王文昊 崔晓钰 |
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| 作者单位： | 1. 上海通用五菱汽车股份有限公司 采购及供应链管理中心,柳州,545007
2. 上海理工大学 能源与动力工程学院,上海,200093 |
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| 基金项目： | 上海市重点学科建设资助项目 |
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| 摘 要： | 采用实验的方法以水为介质研究了同轴换热器内的流动与传热,Re为3×104～10×104.对具有不同螺距两根内管管内的摩擦阻力及同轴换热器整体换热性能进行了实验研究,研究表明:管内摩擦自力系数是相同情况下圆管的3～3.5倍.采用数值计算的方法揭示了同轴换热器管内外流场特征.
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| 关 键 词： | 同轴换热器 螺旋槽管 强化传热 |
Study on Heat Transfer and Pressure Drop of Coaxial Spiral Tube to Tube Heat Exchanger |
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| PAN Cai mei,WANG Wen hao and CUI Xiao yu.Study on Heat Transfer and Pressure Drop of Coaxial Spiral Tube to Tube Heat Exchanger[J].Journal of University of Shanghai For Science and Technology,2012,34(3):293-297. |
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| Authors: | PAN Cai mei WANG Wen hao and CUI Xiao yu |
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| Institution: | 1.Purchasing and Supply Management Center,Shanghai GM Wuling Automobile Corporation,Liuzhou 545007,China; 2.School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China) |
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| Abstract: | Experiment methods using water as medium was adopled to study the flow and heat transfer in coaxial spiral tube to tube heat exchanger with Reynolds range from 30 000 to 100 000,and experiment research was carried out on two tubes with different helical pitch for their frictional resistance and heat transfer performance.The study shows that the tube frictional resistance coefficient of coaxial spiral tube to tube heat exchanger is 3 to 3.5 times as large as circular tube exchanger.The flow field characteristics outside and inside the coaxial spiral tube to tube heat exchanger tubes are revealed using numerical methods. |
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| Keywords: | coaxial spiral tube to tube heat exchanger spirally fluted tube heat transfer enhancement |
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