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Thermal comfort of people from two types of air-conditioned buildings - Evidences from chamber experiments

机译：来自两种类型的空调建筑物的人员的热舒适性-来自室内实验的证据

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Air conditioning has been basically generalized in buildings as the most effective means of cooling in South China; there are two common types of air conditioning: centralized air conditioning system and split-type airconditioner. The present study recruited 60 healthy young people, half from buildings with centralized air conditioning system (CAC buildings) and half from buildings with split-type air-conditioner (SAC buildings), and exposed them to a wide range of temperatures (20-32 degrees C) and humidity (50% and 70%) in a climate chamber. The results showed that the mean skin temperature was significantly higher for subjects from the CAC buildings under the non-neutral conditions, whereas there were no significant differences for other physiological responses. The two groups of subjects reported the same neutral temperatures (26.8 degrees C and 26.6 degrees C) and thermal sensitivities (0.31 degrees C-1). The 90% thermally acceptable SET ranges were 24.8-27.4 degrees C and 24.4-30.1 degrees C for the two groups of subjects, and the range was narrower by 3.1 degrees C and the upper limit was lower by 2.7 degrees C for subjects from the CAC buildings. Thermal history containing intermittent and short-term high & low-temperature exposures in the SAC buildings is suggested to strengthen the occupants' thermoregulatory ability. The long-term experience with a more stable cool environment and the less perceived controls are expected to shape a higher thermal expectation of occupants in the CAC buildings. This study specifies the thermal requirements of people in the two types of air-conditioned buildings, and promotes the understanding of the impacts of thermal history and expectation on human thermal comfort.
机译：在华南地区，空调已基本普及为建筑物最有效的制冷方法。有两种常见的空调类型：集中式空调系统和分体式空调。本研究招募了60名健康的年轻人，一半来自中央空调系统的建筑物（CAC建筑物），另一半来自分体式空调的建筑物（SAC建筑物），并将他们暴露在各种温度下（20-32摄氏度）和湿度（50％和70％）。结果显示，在非中性条件下，来自CAC建筑物的受试者的平均皮肤温度明显更高，而其他生理反应没有显着差异。两组受试者报告了相同的中性温度（26.8摄氏度和26.6摄氏度）和热敏性（0.31摄氏度-1）。两组受试者的90％热可接受SET范围分别为24.8-27.4摄氏度和24.4-30.1摄氏度，范围较CAC受试者的范围缩小3.1摄氏度，上限降低2.7摄氏度建筑物。建议在SAC建筑物中包含间歇性和短期高温与低温暴露的热量历史记录，以增强居住者的体温调节能力。在更稳定的凉爽环境和较少的控制感下的长期经验预计将使CAC建筑物中的居住者对热量的期望更高。这项研究指定了两种空调建筑物中人的热量需求，并促进了人们了解热量历史和期望对人类热量舒适度的影响。

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