Passive Cooling Techniques for Middle-Class Apartments Rapidly Growing in Major Cities of Indonesia

• Project/Area Number: 26420582
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Architectural environment/Equipment
• Research Institution: Hiroshima University
• Principal Investigator: Kubota Tetsu 広島大学, 国際協力研究科, 准教授 (80549741)
• Co-Investigator(Kenkyū-buntansha): 宇野 朋子 武庫川女子大学, 生活環境学部, 講師 (90415620)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: パッシブクーリング / 省エネルギー / 高温多湿気候 / 東南アジア / 熱的快適性 / インドネシア / 国際研究者交流 / 自然換気

Outline of Final Research Achievements

This study developed passive cooling techniques for middle-class apartments in major cities of Indonesia. First, we investigated the current conditions of their indoor thermal environments. For example, air temperatures in the old public apartments, which had the high thermal capacity and a balcony, were found to be lower compared with those in new public and private apartments, under the unoccupied conditions. Second, given an air-conditioning is used in a bedroom, we examined the means to reduce the cooling loads in the room. The result showed that the cooling load was reduced by 45% when the room volume was reduced and the inner walls were insulated. Furthermore, optimum combinations of passive cooling techniques were determined and the comprehensive passive cooling techniques were then proposed.

Research Products

• [Int'l Joint Research] 公共事業省人間居住研究所/スラバヤ工科大学/バンドン工科大学(インドネシア)
• [Int'l Joint Research] スラバヤ工科大学/インドネシア教育大学/バンドン工科大学(インドネシア)
• [Journal Article] Impacts of land use changes from the Hanoi Master Plan 2030 on urban islands: Part 1. Cooling effects of proposed green strategies (2017)
  • Author(s): Kubota, T., Lee, H.S., Trihamdani, A. R., Phuong, T.T.T., Tanaka, T., Matsuo, K.
  • Journal Title: Sustainable Cities and Society Volume: 33 Pages: 295-317
  • DOI: 10.1016/j.scs.2017.04.001
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Impacts of land use changes from the Hanoi Master Plan 2030 on urban islands: Part 2. Influence of global warming (2017)
  • Author(s): Lee, H.S., Trihamdani, A. R., Kubota, T., Iizuka, S., Phuong, T.T.T.
  • Journal Title: Sustainable Cities and Society Volume: 31 Pages: 95-108
  • DOI: 10.1016/j.scs.2017.02.015
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Thermal functions of internal courtyards of traditional Chinese shophouses in the hot-humid climate of Malaysia (2017)
  • Author(s): Kubota, T., Zakaria M.A., Abe, S., Toe, D.H.C.
  • Journal Title: Building and Environment Volume: 112 Pages: 115-131
  • DOI: 10.1016/j.buildenv.2016.11.005
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Evaluation of current material stock and future demolition waste for urban residential buildings in Jakarta and Bandung, Indonesia: Embodied energy and CO2 emission analysis (2017)
  • Author(s): Surahman, U., Higashi, O., Kubota, T.
  • Journal Title: Journal of Material Cycles and Waste Management Volume: 19(2) Issue: 2 Pages: 657-675
  • DOI: 10.1007/s10163-015-0460-1
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Life cycle assessment of energy and CO2 emissions for residential buildings in Jakarta, Indonesia (2016)
  • Author(s): Surahman, U., Kubota, T., Wijaya, A.
  • Journal Title: IOP Conf. Series: Materials Science and Engineering Volume: 128 Pages: 1-8
  • DOI: 10.1088/1757-899x/128/1/012002
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Field Investigation of Indoor Thermal Environments in Apartments of Surabaya, Indonesia: Potential Passive Cooling Strategies for Middle-class Apartments (2015)
  • Author(s): Alfata, M.N.F., Hirata, N., Kubota, T., Nugroho, A., Uno, T., Ekasiwi, S.N., Antaryama, I.G.N.
  • Journal Title: Energy Procedia Volume: 78 Pages: 2947-2952
  • DOI: 10.1016/j.egypro.2015.11.674
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Thermal Comfort in Naturally Ventilated Apartments in Surabaya, Indonesia (2015)
  • Author(s): Alfata, M.N.F., Hirata, N., Kubota, T., Nugroho, A., Uno, T., Antaryama, I.G.N., Ekasiwi, S.N.
  • Journal Title: Procedia Engineering Volume: 121 Pages: 459-467
  • DOI: 10.1016/j.proeng.2015.08.1093
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] The effects of veranda space on indoor thermal environments in Dutch colonial buildings in Bandung, Indonesia (2017)
  • Author(s): Alfata, M.N.F., Kubota, T., Wibowo, A.S.
  • Organizer: International Conference on Passive and Low Energy Architecture (PLEA 2017)
  • Place of Presentation: Edinburgh, U.K.
  • Year and Date: 2017-07-03
  • Int'l Joint Research
• [Presentation] People’s Behaviour of Choosing Optimal Thermal Place for Sustainable Lifestyle (2017)
  • Author(s): Uno, T., Ekasiwi, S.N.N.
  • Organizer: International Conference on Passive and Low Energy Architecture (PLEA 2017)
  • Place of Presentation: Edinburgh, U.K.
  • Year and Date: 2017-07-03
  • Int'l Joint Research
• [Presentation] Field investigation on indoor thermal environments on Dutch colonial buildings in Bandung, Indonesia (2016)
  • Author(s): Alfata, M.N.F., Hirose, T., Kubota, T.
  • Organizer: 11th International Symposium on Architectural Interchange in Asia
  • Place of Presentation: Tohoku, Japan
  • Year and Date: 2016-09-20
  • Int'l Joint Research
• [Presentation] つながりを生む集合住宅：日射をコントロールする共用空間 (2016)
  • Author(s): 佐々木みなみ、宇野朋子、森本順子、杉浦修史
  • Organizer: 日本建築学会大会学術講演梗概集
  • Place of Presentation: Kyushu, Japan
  • Year and Date: 2016-08-24
• [Presentation] Analysis of passive cooling strategies employed in Dutch colonial buildings in Indonesia (2016)
  • Author(s): Alfata, M.N.F., Hirata, N., Hirose, T., Kubota, T.
  • Organizer: AIJ Annual Convention
  • Place of Presentation: Kyusyu, Japan
  • Year and Date: 2016-08-24
• [Presentation] Field measurement on indoor thermal environments in middle-class apartments of Surabaya, Indonesia (2015)
  • Author(s): Hirata, N., Alfata, M.N.F., Kubota, T., Uno, T.
  • Organizer: AIJ Annual Convention
  • Place of Presentation: Kanagawa, Japan
  • Year and Date: 2015-09-04
• [Presentation] Thermal comfort in naturally ventilated apartments in Surabaya, Indonesia (2015)
  • Author(s): Alfata, M.N.F., Hirata, N., Kubota, T., Nugroho, A., Uno, T., Antaryama, I.G.N., Ekasiwi, S.N.
  • Organizer: the 9th International Symposium on Heating, Ventilation, and Air Conditioning and the 3rd International Conference on Building Energy and Environment, ISHVAC-COBEE 2015
  • Place of Presentation: Tianjin, China
  • Year and Date: 2015-07-12 – 2015-07-15
• [Presentation] Thermal comfort in naturally ventilated apartments in Surabaya, Indonesia (2015)
  • Author(s): Alfata, M.N.F., Hirata, N., Kubota, T., Nugroho, A., Uno, T., Antaryama, I.G.N., Ekasiwi, S.N.
  • Organizer: 9th International Symposium on Heating, Ventilation, and Air Conditioning and the 3rd International Conference on Building Energy and Environment, ISHVAC-COBEE 2015
  • Place of Presentation: Tianjin, China
  • Year and Date: 2015-07-12
  • Int'l Joint Research
• [Presentation] Field investigation of indoor thermal environments in apartments of Surabaya, Indonesia: Potential passive cooling strategies for middle-class apartments (2015)
  • Author(s): Alfata, M.N.F., Hirata, N., Kubota, T., Nugroho, A., Uno, T., Antaryama, I.G.N., Ekasiwi, S.N.
  • Organizer: 6th International Building Physics Conference, IBPC 2015
  • Place of Presentation: Torino, Italy
  • Year and Date: 2015-06-14
  • Int'l Joint Research
• [Book] Sustainable Houses and Living in the Hot-Humid Climates of Asia (2018)
  • Author(s): Kubota, T., Rijal, H.B., Takaguchi, H. (Eds)
  • Publisher: Springer