Proposal of Energy-Saving Renovations through Passive Cooling Strategies for Urban Terraced Houses in Hot-Humid Climate of Malaysia
Energy use in buildings is becoming a major concern in developing regions such as Southeast Asia.Unlike traditional vernacular architecture, most of the urban houses in Malaysia are of brick and concrete despite the year-round hot and humid climate.In fact, the air-conditioner ownership has been rising rapidly over the last few decades especially in the urban areas according to the economic growth.The main purpose of this study is to propose energy-saving renovations through passive cooling techniques for achieving thermal comfort in the Malaysian terraced houses.Numerical simulation using TRNSYS was conducted for a typical brick terraced house in the city of Johor Bahru, Malaysia.The passive cooling strategies considered include natural ventilation, thermal insulation, forced ventilation, high reflectivity roof coating, window shading and low emissivity glass for windows.The results reveal that the daily maximum indoor air temperature is reduced by 2.2℃ when roof and external wall-outside surface insulation and external window shading are applied in addition to night ventilation.With these techniques indoor thermal comfort can be met even under the heated urban climate conditions according to an adaptive comfort equation for naturally ventilated buildings in hot-humid climates.
passive cooling natural ventilation energy-saving thermal comfort tropics
Susumu Sugiyama Doris Hooi Chyee Toe Tetsu Kubota
Graduate School for International Development and Cooperation, Hiroshima University Faculty of Built Environment, Universiti Teknologi Malaysia
国际会议
The 10th International Symposium on Architectural Interchanges in Asia(第十届亚洲建筑国际交流会)
杭州
英文
485-489
2014-10-14（万方平台首次上网日期，不代表论文的发表时间）