Development of environmental control method considering the physiology, psychology, respiration, and productivity of the human body in an unsteady / locally distributed environment

2021 Fiscal Year Final Research Report

• Project/Area Number: 19H02304
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 23020:Architectural environment and building equipment-related
• Research Institution: Ritsumeikan University
• Principal Investigator: Chikamoto Tomoyuki 立命館大学, 理工学部, 教授 (60388113)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: ヒューマンファクター / 人体生理モデル / 空調システム / 快適性 / 生産性

Outline of Final Research Achievements

The unsteady and local deviations between the comfort and warmth of the human body and the physiology, and the effects of indoor CO2 concentration on humans were analyzed.
In order to connect to a predictive model of actual comfort, the process by which indoor CO2 concentration affects human physiology such as blood CO2 concentration, and analyzed that it leads to actual comfort, productivity, and drowsiness, was measured.
The new air-conditioning technology that uses unsteady airflow such as pulse airflow control was also developed. Its control method, more effective air-conditioning method were examined.

Free Research Field

建築都市・環境設備工学

Academic Significance and Societal Importance of the Research Achievements

これまで温熱的快適性に関しては定常状態での統計的な温冷感指標が用いられてきた。しかし実際生じている現象は非定常である。多くの人体体温調節モデルでも、非定常性が強い場合、実際に感じる快適感・温冷感を予測するにはズレが生じ、局所温冷感の予測も容易でない。更に生産性に影響を及ぼすCO2濃度との関係に踏み込んでいない。
本研究では、人体の快適感・温冷感と生理との時間的・局所的ズレや、発汗の影響、CO2濃度分布の影響を分析し、建物への実装につながる技術開発として空調負荷の空間分布を予測した上で、パルス気流制御技術の開発をはじめ新たな空調システムの検討とその制御方法の研究を実施している。