Indoor heat stress: An assessment of human bioclimate using the UTCI in different buildings in Berlin
Indoor heat stress: An assessment of human bioclimate using the UTCI in different buildings in Berlin
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室内热应激：使用 UTCI 对柏林不同建筑的人类生物气候进行评估
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
W. Endlicher
中科院分区：
文献类型：
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作者：
M. Langner;K. Scherber;W. Endlicher
由于人类大部分时间都在室内度过，并且可能受到不利热环境的负面影响，因此室内热应激的评估是公共卫生保健的重要问题。为了表征室内人类生物气候，使用了通用热气候指数（UTCI）。 UTCI 值是通过测量 2011 年和 2012 年夏季柏林 16 个房间的空气温度和空气湿度计算得出的。假设空气流速恒定为 0.3 m/s 左右，代谢产热为 135 W/m2。平均辐射温度设置为空气温度。由于平均空气湿度低于或略高于 50%，计算出的 UTCI 值大多低于空气温度。 2012年夏季，平均UTCI值范围为22.2°C至27.1°C，最高UTCI值范围为24.7°C至35.6°C。尽管柏林不同地区的可比较建筑物内的房间之间仅发现微小差异，但在两座相邻建筑物中检测到 UTCI 值存在显着差异，不同房间之间的每日最小值差异高达 8.6 K，每日平均值差异高达 9.8 K，每日最大值差异高达 12.2 K。这些差异可以通过两座建筑物的结构、楼层和外观的差异来解释。 UTCI 值还用于确定中度和强热应激的发生。只有两个房间没有表现出热应力，而三个房间则检测到强烈的热应力。
Because humans spend most of their time indoors and can be negatively affected by unfavourable thermal environments, the assessment of indoor heat stress is an important issue for public health care. To characterise indoor human bioclimate, the Universal Thermal Climate Index (UTCI) was used. UTCI values were calculated from measurements of air temperature and air humidity in 16 rooms in Berlin during the summer months of 2011 and 2012. A constant air velocity of approximately 0.3 m/s and a metabolic heat production of 135 W/m2 were assumed. The mean radiant temperature was set to the air temperature. Because the mean air humidity was below or slightly above 50 %, the calculated UTCI values were mostly lower than the air temperatures. In summer 2012, the mean UTCI values ranged from 22.2 °C to 27.1 °C, and the maximum UTCI values ranged from 24.7 °C to 35.6 °C. Whereas only minor differences were found between rooms located within comparable buildings in different districts of Berlin, pronounced variations of the UTCI values were detected in two adjoining buildings, with differences up to 8.6 K for the daily minimum, 9.8 K for the daily mean and 12.2 K for the daily maximum UTCI between different rooms. These variations can be explained by differences in the structures of the two buildings, floor level and aspect. The UTCI values were also used to determine the occurrence of moderate and strong heat stress. Only two rooms showed no thermal stress, while strong heat stress was detected in three rooms.