BIMA JOURNAL OF SCIENCE AND TECHNOLOGY (2536-6041)最新文献

筛选
英文 中文
EFFECTS OF CEILING FANS ON THE THERMAL COMFORT OF STUDENTS IN LEARNING ENVIRONMENTS OF BAYERO UNIVERSITY, KANO, NIGERIA 吊扇对尼日利亚卡诺巴耶罗大学学生学习环境热舒适的影响
BIMA JOURNAL OF SCIENCE AND TECHNOLOGY (2536-6041) Pub Date : 2018-04-30 DOI: 10.56892/bimajst.v6i01.315
S. Ali, Brett Martinson, Sura Al-Maiyah, M. Gaterell
{"title":"EFFECTS OF CEILING FANS ON THE THERMAL COMFORT OF STUDENTS IN LEARNING ENVIRONMENTS OF BAYERO UNIVERSITY, KANO, NIGERIA","authors":"S. Ali, Brett Martinson, Sura Al-Maiyah, M. Gaterell","doi":"10.56892/bimajst.v6i01.315","DOIUrl":"https://doi.org/10.56892/bimajst.v6i01.315","url":null,"abstract":"It is well known that thermal comfort is influenced by major physical parameters; air and radianttemperatures, humidity, and air speed in combination with personal attributes; clothing insulationand activity level. Although temperature is conventionally considered in adaptive thermalcomfort model, as the most important physical parameter where cooling is involved, moderateair speed can enhance thermal comfort during higher temperatures. Through convective andevaporative cooling, ceiling fans cool people by causing sweat from the occupant’s body toevaporate. The northern part of Nigeria, being in the tropics, is known for higher temperatureregimes for most part of the year. The use of air conditioning to achieve thermal comfort is notsustainable, for economic reasons and the lack of stable electrical energy. Therefore, a majorityof naturally ventilated spaces could be kept thermally comfortable with the control of ceilingfans and operable windows. As part of a research work on learning environments in a NorthernNigerian university, this study reports on the effects of ceiling fans on the thermal comfortperception of the students in two lecture theatres. In addition to the measurements of air speed,air and radiant temperatures, relative humidity, a comfort survey was also undertaken in thespaces, from which activity levels and clothing insulations were obtained. Adaptive thermalcomfort standards, ASHRAE 55 and EN 15251, state that thermal comfort can be maintained asair temperature rises with the use of ceiling fans operating at moderate speed. The results fromthis study show that reductions of 31% and 22% in overheating from the two lecture theatreswere realised, as a result of ceiling fans usage, measured by the degree hour’s exceedanceindicator. These results were further corroborated by the students’ acceptance of thermalconditions of the lecture theatres at temperatures above Tmax.Keywords: Ceiling fans, thermal comfort, overheating, Bayero University, Kano","PeriodicalId":292938,"journal":{"name":"BIMA JOURNAL OF SCIENCE AND TECHNOLOGY (2536-6041)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134052826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信