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严寒环境下的人体冷耐受特性实验 被引量:4
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作者 张宇 陈超 +3 位作者 蔺洁 张思琦 小岛昌一 严志刚 《哈尔滨工业大学学报》 EI CAS CSCD 北大核心 2021年第12期164-170,共7页
第24届冬季奥运会将于2022年2月在中国举行,主会场设在河北省崇礼地区。比赛期间,当地室外日平均气温大约为-17℃~-2℃。为有效提高户外观赛者热舒适感及观赛体验,把握户外观赛者人体冷耐受特性非常重要。为此,本研究利用北京地区某商... 第24届冬季奥运会将于2022年2月在中国举行,主会场设在河北省崇礼地区。比赛期间,当地室外日平均气温大约为-17℃~-2℃。为有效提高户外观赛者热舒适感及观赛体验,把握户外观赛者人体冷耐受特性非常重要。为此,本研究利用北京地区某商业冷库的-14℃~-16℃人工环境条件,基于北京8名高校学生(4男,4女)开展了人体冷耐受实验,重点研究人体各部位的热反应特征、冷耐受极限时间、以及人体不可忍受时的生理极限阈值等问题。研究结果表明:受试者在-14℃~-16℃冷暴露环境、且服装热阻约为2.1 clo的实验条件下,手指、脚趾的皮肤温度下降速率最快、冷感最强烈,躯干及四肢部位的皮肤温度下降速率相对较慢、冷感相对较弱;手暴露与手插兜工况下,平均可持续停留时长分别为51、67 min,影响受试者热感觉以及持续停留时间长短的关键因素分别为手指与脚趾皮肤温度,生理极限阈值均值分别为11℃、16℃,且男女之间无显著性差异(P>0.05)。研究结果可为严寒环境下人体冷耐受特性及其改善人体热舒适性的局部供暖方法研究,提供基础数据参考。 展开更多
关键词 冷暴露 人体冷耐受 皮肤温度与热感觉 生理极限阈值 实验
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Energy Consumption and Thermal Performance in Different Residential Building Types in Hot-Summer and Cold-Winter Zone
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作者 Haiqiang Liu shoichi kojima 《Journal of Civil Engineering and Architecture》 2017年第3期240-248,共9页
In China, REC (residential energy consumption) is the second largest energy use category (10%) following the industry. To fulfill the Chinese government's commitment that Chinese CO2 emissions would peak in 2030,... In China, REC (residential energy consumption) is the second largest energy use category (10%) following the industry. To fulfill the Chinese government's commitment that Chinese CO2 emissions would peak in 2030, as a result, improving the energy efficiency and reducing the emissions from the building sector is significantly important. A survey, in the form of a questionnaire, of energy consumption and thermal situation in different residential building types (detached house, multi-story building, high-rise building), was undertaken in three cities (Shanghai, Hangzhou, and Changzhou) in hot-summer and cold-winter regions, these three cities were selected to represent the most flourishing economic provinces. This region in China was selected for the evaluation of EETP (energy and thermal performance analysis), because of its special weather conditions, huge energy consumption (as both heating in winter and cooling in summer are necessary), and other regional characteristics. 183 households were sampled and experiments were separately done in typical examples of three different building types. Systematic evaluation on EETP for three different residential building types, were put forward to assess the energy efficiency and thermal performance of three different building types. 展开更多
关键词 Hot-summer and cold-winter thermal comfort PMV evaluation of energy and thermal performance residential buildingtype.
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