Conditions for Actively Selected Behavioral Adaptation Means in Air-Conditioned Offices

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04378
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 23020:Architectural environment and building equipment-related
• Research Institution: Hosei University (2023); Tokai University (2021-2022)
• Principal Investigator: Nakano Junta 法政大学, デザイン工学部, 教授 (30350482)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: 熱的快適性 / 温熱環境適応 / 行動的適応 / 着衣調節 / パーソナル空調

Outline of Final Research Achievements

This study aims to identify the conditions for behavioral adaptation measures that contribute to improved thermal comfort in air-conditioned offices. Trends in personal air conditioning systems were investigated and found to be concentrated in ceiling-supply systems, which are the most distant from the human body. In addition, the latest ASHRAE thermal environment standard specifies that personal environmental control positively affects thermal comfort, and the requirements for the system were identified. In the air-conditioned student lounge, the number of adaptive behaviors increased with time spent there, mainly due to clothing adjustment. The amount of clothing was most correlated with room temperature, and the amount of adjusted clothing was proportional to the base clothing. Being in a large group of four or more people was found to be a potential disincentive for adaptive behavior.

Free Research Field

建築環境工学

Academic Significance and Societal Importance of the Research Achievements

建築分野では室内環境に対するニーズが多様化している一方、2050年のカーボンニュートラル社会に向けた抜本的なエネルギー削減策が求められている。執務者の温熱環境適応の考慮により室内環境条件の緩和が可能になるが、環境適応研究は主に自然換気オフィスを対象に行われてきた。空調されたオフィスを対象とし、熱的快適性の改善に寄与する行動的適応手段の条件に着目した点に本研究の意義がある。最新の温熱環境基準および国内パーソナル空調の動向を分析し、求められる要件を整理した。オフィスでの調査は実現しなかったものの、空調されたカフェテリアにおいて行動的適応特性と非熱的要因の影響について定量的評価を行った。