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首页> 外文期刊>International Journal of Heat and Mass Transfer >Heat transfer and exergy loss in conical spring turbulators
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Heat transfer and exergy loss in conical spring turbulators

机译：锥形弹簧湍流器的传热和火用损失

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摘要

It would be misleading to consider only the construction costs of heat exchangers in their design because high service costs during their service life may also greatly increase total costs. Therefore energy saving aspects are very important in the design, construction and operation of the heat exchangers. For this reason, various active or passive methods have been sought to save energy by increasing the heat transfer coefficients in the cold and warm fluid sides in the heat exchangers. Conical spring turbulators (CST) are devised in this study. Performances of heat transfer and pressure drop in a pipe with the CST are experimentally examined for the CSTs' angle (θ) of 30°, 45° and 60° in Reynolds number (Re) range of 10,000-34,000. Heat transfer, pressure loss and exergy analysis were made for the conditions with and without turbulators and compared to each other. Some empirical correlations expressing the results were also derived and discussed.
机译：在其设计中仅考虑热交换器的建造成本会产生误导，因为在其使用寿命期间较高的服务成本也可能大大增加总成本。因此，节能方面在热交换器的设计，构造和运行中非常重要。由于这个原因，已经寻求各种主动或被动方法来通过增加热交换器的冷流体侧和热流体侧中的传热系数来节省能量。本研究设计了锥形弹簧湍流器（CST）。在CST的角度（θ）为10,000-34,000的雷诺数（Re）范围为30°，45°和60°的情况下，通过实验检查了带有CST的管道中的传热和压降性能。在有和没有湍流器的条件下进行传热，压力损失和火用分析，并将它们进行比较。还得出和讨论了一些表示结果的经验相关性。

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