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Study on Heat Utilization in an Attached Sunspace in a House with a Central Heating, Ventilation, and Air Conditioning System

Author

Listed:
  • Qingsong Ma

    () (Department of Architecture, The University of Kitakyushu, Kitakyushu 808-0135, Japan)

  • Hiroatsu Fukuda

    () (Department of Architecture, The University of Kitakyushu, Kitakyushu 808-0135, Japan
    School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China)

  • Myonghyang Lee

    () (Department of Architecture and Urban Design, Ritsumeikan University, Kyoto 603-8577, Japan)

  • Takumi Kobatake

    () (Tohata Architects & Engineers, Osaka 541-0043, Japan)

  • Yuko Kuma

    () (Faculty of Engineering, Shonan Institute of Technology, Kanagawa 251-0046, Japan)

  • Akihito Ozaki

    () (Department of Architecture and Urban Design, Kyushu University, Fukuoka 812-0053, Japan)

  • Xindong Wei

    () (School of Environmental and Municipal Engineering, Jilin Jianzhu University, Changchun 130118, China)

Abstract

Based on numerical simulations, the heating load reduction effect of an attached sunspace in winter was determined, and the effective heat utilization method and sunspace design were explored. In this paper, we studied the heating load reduction effect using heat from the sunspace and temperature fluctuation of each room at the time of heat use from the sunspace (sending air from the sunspace to the heating, ventilation, and air conditioning (HVAC) machine room and taking the air to the adjacent rooms). In the case of the all-day HVAC system, it was confirmed that a larger capacity of sunspace and not sending air from the sunspace to the adjacent room demonstrated a better heating-load reduction effect. Compared with Model Iw (a house with a window on the exterior of the sunspace opened to external air), Model I (a house with an attached sunspace on the second floor) could save approximately 41% of the total energy. Model II (a house with the attached sunspace both on the first and second floors) could save approximately 84% of the total energy. Sending heat from the sunspace to the adjacent room led to temperature increases in the adjacent rooms. However, if the construction plan is to have the sunspace only on the second floor, the house should be carefully designed, for example, by placing a living room on the second floor.

Suggested Citation

  • Qingsong Ma & Hiroatsu Fukuda & Myonghyang Lee & Takumi Kobatake & Yuko Kuma & Akihito Ozaki & Xindong Wei, 2018. "Study on Heat Utilization in an Attached Sunspace in a House with a Central Heating, Ventilation, and Air Conditioning System," Energies, MDPI, Open Access Journal, vol. 11(5), pages 1-12, May.
  • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1192-:d:145259
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    References listed on IDEAS

    as
    1. Oliveti, Giuseppe & Arcuri, Natale & De Simone, Marilena & Bruno, Roberto, 2012. "Solar heat gains and operative temperature in attached sunspaces," Renewable Energy, Elsevier, vol. 39(1), pages 241-249.
    2. Rempel, Alexandra R. & Rempel, Alan W. & Gates, Kenneth R. & Shaw, Barbara, 2016. "Climate-responsive thermal mass design for Pacific Northwest sunspaces," Renewable Energy, Elsevier, vol. 85(C), pages 981-993.
    3. Tong, Zheming & Chen, Yujiao & Malkawi, Ali, 2017. "Estimating natural ventilation potential for high-rise buildings considering boundary layer meteorology," Applied Energy, Elsevier, vol. 193(C), pages 276-286.
    4. Francesco Asdrubali & Franco Cotana & Antonio Messineo, 2012. "On the Evaluation of Solar Greenhouse Efficiency in Building Simulation during the Heating Period," Energies, MDPI, Open Access Journal, vol. 5(6), pages 1-17, June.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    air circulation system; attached sunspace; heating load reduction; numerical simulation;

    JEL classification:

    • Q - Agricultural and Natural Resource Economics; Environmental and Ecological Economics
    • Q0 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - General
    • Q4 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy
    • Q40 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - General
    • Q41 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Demand and Supply; Prices
    • Q42 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Alternative Energy Sources
    • Q43 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Energy and the Macroeconomy
    • Q47 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Energy Forecasting
    • Q48 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Government Policy
    • Q49 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - Other

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