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首页> 美国政府科技报告 >Comparison of the Tube-Side Performance of Enhanced Heat Transfer Tubing for Naval Condensers.
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Comparison of the Tube-Side Performance of Enhanced Heat Transfer Tubing for Naval Condensers.

机译：海军凝汽器强化传热管管侧性能比较。

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摘要

The data of several investigators conducting research in the area of enhanced heat transfer in internally ribbed and spirally corrugated tubes is compiled and examined to determine the effects of the geometric characteristics of enhanced tubing on flow resistance and heat transfer. The data are compared to determine if there are any relations, either new or previously published, which can be of use to the designer to predict the friction factor and heat transfer coefficient for a specified enhanced tube. Empirical relations are recommended for friction factor and heat transfer coefficient for single-start and multiple-start spirally corrugated tubes based on the law of the wall similarity analysis and a heat transfer similarity analysis. The empirical relations are compared to experimental data for single-start and multiple-start corrugated tubes with pitch-to-groove ratios greater than 10 and dimensionless groove depths less than 0.05.

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