Actual room air conditioner usage in the residential sector of Japan

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  • TANAKA Chitose
    Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
  • OKAMOTO Hiroaki
    Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo
  • HIHARA Eiji
    Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo

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Other Title
  • 家庭用ルームエアコンの使用実態調査
  • 家庭用ルームエアコンの使用実態調査(第2報)クラスター分析と運転率関数の決定
  • カテイヨウ ルームエアコン ノ シヨウ ジッタイ チョウサ(ダイ2ホウ)クラスター ブンセキ ト ウンテンリツ カンスウ ノ ケッテイ
  • —2nd report : Cluster analysis and determination of the operating ratio functions—
  • －第<b>2 </b>報：クラスター分析と運転率関数の決定－

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Abstract

It is important to evaluate the annual performance factor (APF) of room air conditioners (RACs) in accordance with their actual usage in residential sectors. In this study, actual RAC usage was monitored for 100 families over a year by equipping each air conditioner with an electric power meter and a data logger. We monitored 25 families living in detached houses in the Shinetsu area (a cold area), 25 families in the west Kanto area, 25 families in the east Kanto area, and 25 families living in apartments in the east Kanto area. In this report, we showed the results of a cluster analysis on an outdoor-temperature-associated operating ratio (TOR) and an hour-associated operating ratio (HOR), and the most influential operation pattern for the total operating time was ascertained. Finally, an appropriate and simple method for obtaining the APF of actual RAC usage is outlined.

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