外门空气幕对供暖期高校宿舍室内温度的影响
Effect of Door Air Curtain on Indoor Temperature of College Dormitory during Heating Period
杨玉昕 1罗君 2王飞飞 1邱屹 1葛航1
作者信息
- 1. 华中科技大学环境科学与工程学院,湖北武汉 430074
- 2. 武汉市计量测试检定(研究)所,湖北武汉 430050
- 折叠
摘要
以武汉某高校安装空调器、外门空气幕的4人学生宿舍为研究对象,在供暖期不同室外温度条件下,对人员坐姿时头部所在高度面(1.1 m高度面)的温度场、速度场进行模拟.以1.1 m高度面的空气温度整体水平、空气温度分布均匀性作为评价标准,选取适宜的空调送风角.以1.1 m高度面低温(低于23℃)区面积比为5％作为评价标准,确定不同室外温度条件下空气幕最佳送风风速.空调送风角宜选取45°.1.1 m高度面低温区面积比为5％时,室外温度8、3、-2℃对应的空气幕最佳送风风速分别为0.18、0.30、0.46 m/s.1.1 m高度面的空气速度分布以空调送风为主导,高速区出现在两储物柜中间位置,空气幕送风风速对1.1 m高度面的空气速度分布基本无影响.
Abstract
Taking a four-person dormitory e-quipped with air conditioner and door air curtain in a university in Wuhan as the research object,the temper-ature field and speed field of the height plane(1.1 m)where the head is located when the person is sitting are simulated under different outdoor temperature condi-tions during the heating period.Taking the overall lev-el of air temperature and the uniformity of air tempera-ture distribution at a height of 1.1 m as the evaluation criteria,the appropriate air supply angle of the air con-ditioner is selected.Taking the low temperature(below 23 ℃)area ratio of 5％ at the height of 1.1 m as the evaluation criterion,the optimal air supply speed of the air curtain under different outdoor temperature condi-tions is determined.The air supply angle of the air conditioner should be 45°.When the low temperature area ratio at the height of 1.1 m is 5％,the optimal air supply air speeds corresponding to the outdoor tempera-tures of 8,3 and-2 ℃ are 0.18,0.30 and 0.46 m/s,respectively.The air speed distribution at the height of 1.1 m is dominated by the air supply from the air conditioner,and the high-speed area appears in the middle of the two lockers.The air curtain air supply speed basically has no effect on the air speed distribu-tion at the height of 1.1 m.
关键词
空气幕/高校学生宿舍/温度分布/速度分布Key words
air curtain/college dormitory/tem-perature distribution/speed distribution引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据