| 螺旋翅片管束传热和阻力特性的试验研究 |
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| 引用本文： | 何法江,曹伟武,匡江红,严平,钱尚源,梁怀琪,韩永华. 螺旋翅片管束传热和阻力特性的试验研究[J]. 动力工程, 2009, 29(5) |
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| 作者姓名： | 何法江 曹伟武 匡江红 严平 钱尚源 梁怀琪 韩永华 |
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| 作者单位： | 何法江,曹伟武,匡江红,严平,钱尚源,HE Fa-jiang,CAO Wei-wu,KUANG Jiang-hong,YAN Ping,QIAN Shang-yuan(上海工程技术大学,机械工程学院,上海,201620);梁怀琪,韩永华,LIANG Huai-qi,HAN Yong-hua(江苏中天能源设备有限公司,江都,225225) |
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| 基金项目： | 上海市重点学科建设项目 |
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| 摘 要： | 对13个不同翅片间距、翅片高度、横向管间距、纵向管间距的螺旋翅片管束换热器在不同雷诺数条件下的传热和阻力特性进行了试验研究,得出了翅片间距、翅片高度、横向管间距、纵向管间距及雷诺数与换热特性Nu和阻力特性Eu的准则关系式,并对准则关系式进行了分析.结果表明:随着横向管间距和翅片间距的增大,螺旋翅片管的传热得到强化,但随着纵向管间距和翅片高度的增加,螺旋翅片管的传热有所减弱;随着横向管间距、纵向管间距和翅片间距的增大,螺旋翅片管的阻力减少,但随着翅片高度的增加,螺旋翅片管的阻力增加.
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| 关 键 词： | 换热器 螺旋翅片管 传热特性 阻力特性 |
Heat Transfer and Resistance Characteristics of Spiral Finned Tube Bundles |
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| HE Fa-jiang,CAO Wei-wu,KUANG Jiang-hong,YAN Ping,QIAN Shang-yuan,LIANG Huai-qi,HAN Yong-hua. Heat Transfer and Resistance Characteristics of Spiral Finned Tube Bundles[J]. Power Engineering, 2009, 29(5) |
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| Authors: | HE Fa-jiang CAO Wei-wu KUANG Jiang-hong YAN Ping QIAN Shang-yuan LIANG Huai-qi HAN Yong-hua |
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| Affiliation: | 1.College of Mechanical Engineering;Shanghai University of Engineering Science;Shanghai 201620;China;2.Jiangsu ZhongTian Energy Equipment Co.;Ltd.;Jiangdu 225225;China |
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| Abstract: | Experimental studies were carried out under different Re conditions on heat transfer and resistance characteristics of 13 spiral finned heat exchangers with different fin pitches,fin heights,transversal tube pitches and longitudinal tube pitches.The criterion relations among fin pitch,fin height,transversal tube pitch,longitudinal tube pitch,Re and Nu(heat transfer characteristic),Eu(resistance characteristic) were obtained.Results show that with the increase of transversal tube pitch and fin pitch,the heat... |
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| Keywords: | heat exchanger spiral finned tube heat transfer characteristics resistance characteristics |
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