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A study on the characteristics of nighttime bedroom cooling load in tropics and subtropics

机译：热带和亚热带夜间卧室制冷负荷的特性研究

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摘要

In both tropical and subtropical regions, residential air conditioning serves to maintain appropriate indoor thermal environments not only at daytime, but also at nighttime in bedrooms for sleeping. However, the current practices for air conditioning are primarily concerned with the situations in which people are awake at daytime. Therefore, these may not be directly applicable to nighttime bedroom air conditioning. This paper reports on a simulation study on the characteristics of nighttime bedroom cooling load in tropics and subtropics, using a building energy simulation program. The weather conditions of and the typical arrangements of high-rise residential blocks in Hong Kong are used in the simulation study. The simulation results on the cooling load characteristics in bedrooms under three different operating modes of room air conditioners (RACs) at the summer design day, the breakdown of the total cooling load in a bedroom at nighttime operating mode (NOM), indoor air temperature and mean radiant temperature variation at NOM, and the effects of indoor design air temperature on the cooling load characteristics at NOM are presented. The differences in the cooling load characteristics among three different operating modes and the issues related to the sizing of RACs used in bedrooms are discussed.
机译：在热带和亚热带地区，住宅空调不仅可以在白天，而且可以在夜间在卧室内保持适当的室内热环境，以供睡眠。但是，当前的空调习惯主要与人们在白天醒着的情况有关。因此，这些可能不适用于夜间卧室空调。本文使用建筑能耗模拟程序，对热带和亚热带夜间卧室制冷负荷的特性进行了模拟研究。模拟研究中使用了香港的天气状况和高层住宅区的典型布置。在夏季设计日对三种不同房间空调（RACs）运行模式下卧室的制冷负荷特性进行仿真的结果，夜间运行模式（NOM）下卧室的总制冷负荷的细目分类，室内空气温度和给出了NOM的平均辐射温度变化，以及室内设计温度对NOM的制冷负荷特性的影响。讨论了三种不同运行模式之间的制冷负荷特性差异以及与卧室中使用的RAC尺寸相关的问题。

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