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首页> 外文期刊>International Journal of Refrigeration >Air-side performance evaluation of three types of heat exchangers in dry, wet and periodic frosting conditions
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Air-side performance evaluation of three types of heat exchangers in dry, wet and periodic frosting conditions

机译：三种类型的热交换器在干，湿和定期结霜条件下的空气侧性能评估

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摘要

The performances of three types of heat exchangers that use the louver fin geometry: (1) parallel flow parallel fin with extruded flat tubes heat exchanger (PF{sup}2), (2) parallel flow serpentine fin with extruded flat tubes heat exchanger (PFSF) and (3) round tube wave plate fin heat exchanger (RTPF) have been experimentally studied under dry, wet and frost conditions and results are presented. The parameters quantified include air-side pressure drop, water retention on the surface of the heat exchanger, capacity and overall heat transfer coefficient for air face velocity 0.9, 2 and 3 m/s, air humidity 70% and 80% and different orientations. The performances of three types of heat exchanger are compared and the results obtained are presented. The condensate drainage behavior of the air-side surface of these three heat exchanger types was studied using both the dip testing method and wind tunnel experiment.
机译：使用百叶窗翅片几何形状的三种类型的热交换器的性能：（1）带有扁管挤压成形的平行流平行翅片热交换器（PF {sup} 2），（2）带有扁管挤压成形的平行流蛇形翅片（ PFSF）和（3）圆管波片翅片换热器（RTPF）已在干燥，潮湿和霜冻条件下进行了实验研究，并给出了结果。量化的参数包括空气侧压降，热交换器表面上的水分，空气面速度0.9、2和3 m / s，空气湿度70％和80％以及不同方向的容量和总传热系数。比较了三种类型的热交换器的性能，并给出了结果。使用倾角测试方法和风洞实验研究了这三种类型的热交换器的空气侧表面的冷凝水排放行为。

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