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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Obstructed airflow through the condenser of an automotive air conditioner - Effects on the condenser and the overall performance of the system
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Obstructed airflow through the condenser of an automotive air conditioner - Effects on the condenser and the overall performance of the system

机译：通过汽车空调冷凝器的气流受阻-对冷凝器和系统整体性能的影响

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The performance of a cross-flow, microchannel condenser of an automotive air conditioning system (AACS) subjected to the maldistribution of airflow has been studied experimentally. The maldistribution of airflow has been created by placing different upstream screens with uniform, middle, side or peripheral block having 30%, 40% or 50% area blockage and a total of 52 set of experiments were conducted over a wide range of parameters. Infrared imaging was used to assess the deterioration of condenser cooling under blocked condition. Though there has been a significant reduction of the performance of the condenser, the refrigerant flow was observed to increase with the increase of area of blockage. The cooling capacity and COP of the system decreased by 8.16% and 16.8% respectively for an area blockage of 50% compared to the normal operating condition. Effect of side and middle blockage were noted to be more severe while, the peripheral blockage had a minimum effect.
机译：实验研究了受到气流分布不均的汽车空调系统（AACS）的横流微通道冷凝器的性能。通过将不同的上游滤网放置在面积，面积，阻塞率分别为30％，40％或50％的均匀的，中间的，侧面的或外围的阻塞物上，已经造成了气流的分布不均，并且在广泛的参数范围内进行了总共52组实验。红外成像用于评估阻塞条件下冷凝器冷却的恶化。尽管冷凝器的性能已大大降低，但观察到制冷剂流量随堵塞面积的增加而增加。与正常运行条件相比，在区域阻塞为50％的情况下，系统的制冷量和COP分别降低了8.16％和16.8％。注意到侧面和中间阻塞的影响更为严重，而外围阻塞的影响最小。

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