Influence of building insulation performance and heating systems on thermal environment and energy performance

Toshiaki Omori, Shinichi Tanabe, Masaharu Itagaki

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    Thermal comfort in a heated room is much affected by the characteristics of envelop, especially its thermal insulation properties and the heating system. Coupled convection-radiation simulation is conducted to estimate heat release from a floor heating system or a wall-mounted air-conditioning unit under the same equivalent temperature with simulated human body under five building insulation levels including three levels of Japanese energy conservation standards for residential building. A human body model is placed on the floor in a seated posture and controlled by comfort regulation of thermal manikin. In computations, sensible heat release from the human body is matched for different heating systems by properly controlling temperature of the heating panels under the floor or hot air from the air-conditioner. When heat loss from the bottom of the heating panels is neglected, heat release from the floor heating system is smaller than that from the air-conditioning unit.

    Original languageEnglish
    Pages (from-to)231-238
    Number of pages8
    JournalJournal of Environmental Engineering
    Volume76
    Issue number661
    DOIs
    Publication statusPublished - 2011 Mar

    Fingerprint

    Insulation
    Heating
    Air conditioning
    Thermal comfort
    Thermal insulation
    Air
    Heat losses
    Hot Temperature
    Energy conservation
    Radiation
    Temperature

    Keywords

    • Air-Conditioner
    • Building Insulation Performance
    • Coupled Convection-Radiation Simulation
    • Equivalent Temperature
    • Floor Heater
    • Heating Energy Consumption Rate

    ASJC Scopus subject areas

    • Environmental Engineering

    Cite this

    Influence of building insulation performance and heating systems on thermal environment and energy performance. / Omori, Toshiaki; Tanabe, Shinichi; Itagaki, Masaharu.

    In: Journal of Environmental Engineering, Vol. 76, No. 661, 03.2011, p. 231-238.

    Research output: Contribution to journalArticle

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