室外机安装平台对房间空调器性能的影响（一）——对室外机进风参数的影响

doi:10.19784/j.cnki.issn1672-0172.2020.05.012

Abstract

Abstract: The ventilation condition of outdoor unit installation platforms directly affects actual performance of room air conditioners. Through the investigation of residential buildings, the types and proportions of installation platforms are clarified. Based on common characteristics of platforms, the feature sizes that characterize the geometric structure of platforms are defined. This paper points out that air volume reduction and exhaust air recirculation caused by installation platforms are two fundamental reasons that affect the performance of air conditioners. It is proposed to use the air volume reduction coefficient β and the exhaust air recirculation coefficientα to quantitatively describe the influence of platforms on outdoor units' air intake parameters. A louver installation platform is used as an example to illustrate the method of calculating values of β and α by using CFD simulation and fan characteristic curves, through which values of β and α for main installation platforms can be obtained.

Key words: Room air conditioner, Outdoor unit, Installation platform, Air volume reduction, Exhaust air recirculation

CLC Number:

YU Yang, YANG Zixu, SHI Wenxing. The influence of outdoor unit installation platform on the performanceof room air conditioner (1)——Influence on intake parameters[J]. Journal of Appliance Science & Technology, 2020, 0(5): 80-85.

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The influence of outdoor unit installation platform on the performanceof room air conditioner (1)——Influence on intake parameters

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