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首页> 外文期刊>International Journal of Refrigeration >Experimental study on pressure drop and heat transfer in pipelines for brine based ice slurry. Part I: Operational parameters correlations
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Experimental study on pressure drop and heat transfer in pipelines for brine based ice slurry. Part I: Operational parameters correlations

机译:盐水基冰浆在管道中的压降和传热的实验研究。第一部分:运行参数关联

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Ice slurry flow through horizontal pipes is studied experimentally in order to find out its heat transfer and isothermal friction properties. Using 9% NaCl brine as the carrier fluid, different flow conditions are discussed with a view to analyse each involved variable. In this Part I, experimental data are directly correlated and easy-to-use expressions for the Darcy friction factor and the Nusselt number were obtained as functions of non-dimensional parameters expressing flow and geometrical properties. The most remarkable conclusion obtained is a clear influence of the ice particle-pipe diameter ratio in the pressure drop parameters, not previously taken into account, which must be confirmed in heat transfer process. The thermal and hydraulic performance of ice slurry flowing through corrugated pipes is also analysed showing, with regard to smooth pipe, the same behaviour in pressure drop and opposite behaviour in heat transfer.
机译:实验研究了冰浆在水平管中的流动,以了解其传热和等温摩擦特性。使用9%NaCl盐水作为载液,讨论了不同的流动条件,以分析每个涉及的变量。在第一部分中,直接关联了实验数据,并获得了达西摩擦因数和Nusselt数的易于使用的表达式,这些表达式是表示流量和几何特性的无量纲参数的函数。获得的最显着结论是,冰粒管直径比对压降参数的明显影响,以前没有考虑,必须在传热过程中加以确认。还分析了流过波纹管的冰浆的热和水力性能,就光滑管而言,显示出相同的压降行为和相反的传热行为。

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