Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cost-Benefit Analysis of Building Energy Retrofitting Techniques for Typical Existing Middle-Class Apartment (Rusunami) in Indonesia
Facing a massive housing demand in Indonesia due to rapid urbanization, the notion of vertical housing construction emerged to resolve the problem. Nonetheless, past research showed that the existing middle-class apartments (referred to as Rumah Susun Sederhana Milik (Rusunami)) require considerable energy to operate the air conditioner to meet the occupants’ thermal comfort. Hence, reducing the cooling load of the building is urgently needed. Building energy retrofitting is one of the plausible ways to overcome this issue. Further, the investment cost of those retrofitting techniques is also essential to be taken into consideration. Therefore, this research focuses on the cost-benefit assessment of several retrofitting techniques for typical existing Rusunami. Firstly, a typological study is carried out to investigate the typical unit design as a representative model of Rusunami. Afterward, energy simulation software, TRNSYS, is utilized for energy performance analysis. Then, each technique’s cost-benefit calculation is conducted to determine the possible optimum low-cost retrofitting options concurrently with the most significant cooling load reduction performance. The typological study shows that using thin outer walls without thermal insulation and clear glass for windows is a common practice. Meanwhile, coated glass is ideal for balancing the price and overcoming thermal problems in naturally ventilated (1 °C reduction of operative temperature) and air-conditioned environments (up to 15% of the cooling load).
Cost-Benefit Analysis of Building Energy Retrofitting Techniques for Typical Existing Middle-Class Apartment (Rusunami) in Indonesia
Facing a massive housing demand in Indonesia due to rapid urbanization, the notion of vertical housing construction emerged to resolve the problem. Nonetheless, past research showed that the existing middle-class apartments (referred to as Rumah Susun Sederhana Milik (Rusunami)) require considerable energy to operate the air conditioner to meet the occupants’ thermal comfort. Hence, reducing the cooling load of the building is urgently needed. Building energy retrofitting is one of the plausible ways to overcome this issue. Further, the investment cost of those retrofitting techniques is also essential to be taken into consideration. Therefore, this research focuses on the cost-benefit assessment of several retrofitting techniques for typical existing Rusunami. Firstly, a typological study is carried out to investigate the typical unit design as a representative model of Rusunami. Afterward, energy simulation software, TRNSYS, is utilized for energy performance analysis. Then, each technique’s cost-benefit calculation is conducted to determine the possible optimum low-cost retrofitting options concurrently with the most significant cooling load reduction performance. The typological study shows that using thin outer walls without thermal insulation and clear glass for windows is a common practice. Meanwhile, coated glass is ideal for balancing the price and overcoming thermal problems in naturally ventilated (1 °C reduction of operative temperature) and air-conditioned environments (up to 15% of the cooling load).
Cost-Benefit Analysis of Building Energy Retrofitting Techniques for Typical Existing Middle-Class Apartment (Rusunami) in Indonesia
Lecture Notes in Civil Engineering
Swasto, Deva Fosterharoldas (Herausgeber:in) / Rahmi, Dwita Hadi (Herausgeber:in) / Rahmawati, Yani (Herausgeber:in) / Hidayati, Isti (Herausgeber:in) / Al-Faraby, Jimly (Herausgeber:in) / Widita, Alyas (Herausgeber:in) / Prasetyo, Doan Tri (Autor:in) / Trihamdani, Andhang Rakhmat (Autor:in)
International Conference on Indonesian Architecture and Planning ; 2022 ; Yogyakarta, Indonesia
27.06.2023
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch