https://scholars.lib.ntu.edu.tw/handle/123456789/637269
標題: | Energy performance of school roofing materials in hot and humid climates | 作者: | Chang, Jui Ho KUO-TSANG HUANG Wang, Jen Chun |
關鍵字: | Energy consumption | Energyplus simulation | Payback periods | Roof construction materials | Roof thermal insulation | 公開日期: | 1-十二月-2023 | 卷: | 19 | 來源出版物: | Case Studies in Construction Materials | 摘要: | Effective roof insulation plays a pivotal role in reducing the energy used for air-conditioning, particularly in Taiwan's extreme summer climate. In the present study, 1108 cases of rooftop insulation renovations in Taiwanese schools between 2018 and 2022 were investigated, and the thermal insulation performance and air-conditioning-related electricity savings associated with these renovations were analyzed through a cost–benefit assessment of the investment in insulation. The EnergyPlus software was used to model typical classroom roofs in seven climate zones in Taiwan. All the adopted thermal insulation methods considerably reduce air-conditioning-related electricity use; however, diminishing returns occur faster for thicker thermal insulation. The four main roof insulation materials used in the analyzed cases are galvanized corrugated steel, foam concrete, polystyrene sheets, and insulating bricks, which are associated with average maximum electricity-saving ratios of 17%, 15.3%, 10.2%, and 9.7%, respectively, and payback periods of 6.1, 6.4, 4.5, and 9.3 years, respectively. Electricity savings are greater and the payback period is shorter for the hotter southern zones of Taiwan than for the cooler northern zones. Galvanized corrugated steel has average energy efficiency of 21% and 13% in the southern and northern zones, respectively. The selection of roof construction materials strongly influences the consumption of energy for air-conditioning. Moreover, different construction costs result in distinct payback periods. The results of this study serve as a reference for school administrators and governments in the selection of insulation methods and design of building energy conservation and management, respectively. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85174683282&doi=10.1016%2fj.cscm.2023.e02586&partnerID=40&md5=3c0c8a8e0c83b5200d71d7163a893b1f https://scholars.lib.ntu.edu.tw/handle/123456789/637269 |
ISSN: | 22145095 | DOI: | 10.1016/j.cscm.2023.e02586 |
顯示於: | 生物環境系統工程學系 |
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