Effects of reducing internal heat load on the operation of multi-split type air conditioning system in an office

Sayana Tsushima, Shuhei Takahashi, Emi Takai, Junta Fujisawa, Shinichi Tanabe, Hiromasa Tanaka, Hisataka Kitora

    研究成果: Conference contribution

    抜粋

    In this study, the internal heat load and operation of an HVAC system were investigated in an office drawing low internal heat load where multi-split type air conditioning system were adopted. Field and questionnaire surveys and an energy consumption analysis were performed. The designed total cooling capacity of the HVAC system was 158 W/m2, relatively small compared to most systems that have had a 200 W/m2 capacity. However, the average load factor was below 30%. Moreover, it was found that the operation of a dedicated outdoor air system had a large influence on the total electric energy consumption in offices practicing internal load reduction, and that the main cause for the operation change was the humidity setting of the system. Introducing air-conditioning systems with an appropriate smaller capacity and a comprehensive energy-saving operation method, rather than partially optimizing each device, would be beneficial in terms of total energy saving.

    元の言語English
    ホスト出版物のタイトルHealthy Buildings Europe 2017
    出版者International Society of Indoor Air Quality and Climate
    ISBN(印刷物)9788379472604
    出版物ステータスPublished - 2017 1 1
    イベントHealthy Buildings Europe 2017, HB 2017 - Lublin, Poland
    継続期間: 2017 7 22017 7 5

    Other

    OtherHealthy Buildings Europe 2017, HB 2017
    Poland
    Lublin
    期間17/7/217/7/5

    ASJC Scopus subject areas

    • Civil and Structural Engineering

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  • これを引用

    Tsushima, S., Takahashi, S., Takai, E., Fujisawa, J., Tanabe, S., Tanaka, H., & Kitora, H. (2017). Effects of reducing internal heat load on the operation of multi-split type air conditioning system in an office. : Healthy Buildings Europe 2017 International Society of Indoor Air Quality and Climate.