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首页> 外文期刊>Journal of Heat Transfer >Experimental Study and Genetic-Algorithm-Based Correlation on Shell-Side Heat Transfer and Flow Performance of Three Different Types of Shell-and-Tube Heat Exchangers
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Experimental Study and Genetic-Algorithm-Based Correlation on Shell-Side Heat Transfer and Flow Performance of Three Different Types of Shell-and-Tube Heat Exchangers

机译：三种管壳式换热器壳侧传热和流动性能的实验研究和基于遗传算法的相关性

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摘要

The heat transfer and pressure drop of three types of shell-and-tube heat exchangers, one with conventional segmental baffles and the other two with continuous helical baffles, were experimentally measured with water flowing in the tube side and oil flowing in the shell side. The genetic algorithm has been used to determine the coefficients of correlations. It is shown that under the identical mass flow, a heat exchanger with continuous helical baffles offers higher heat transfer coefficients and pressure drop than that of a heat exchanger with segmental baffles, while the shell structure of the side-in-side-out model offers better performance than that of the middle-in-middle-out model. The predicted heat transfer rates and friction factors by means of the genetic algorithm provide a closer fit to experimental data than those determined by regression analysis. The predicted corrections of heat transfer and flow performance in the shell side's may be used in engineering applications and comprehensive study. It is recommended that the genetic algorithm can be used to handle more complicated problems and to obtain the optimal correlations.
机译：三种类型的管壳式换热器的传热和压降分别通过在管侧流动的油和在壳侧流动的油进行实验测量，其中一种具有传统的分段折流板，另一种具有连续的螺旋形折流板。遗传算法已用于确定相关系数。结果表明，在相同的质量流量下，具有连续螺旋折流板的换热器比具有分段折流板的换热器提供更高的传热系数和压降，而从侧面到侧面的模型的壳结构提供了更高的传热系数和压降。比中进中出模型的性能更好。与通过回归分析确定的数据相比，通过遗传算法预测的传热速率和摩擦系数与实验数据的拟合度更高。壳侧传热和流动性能的预测校正可用于工程应用和综合研究。建议将遗传算法用于处理更复杂的问题并获得最佳相关性。

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