1992 Fiscal Year Final Research Report Summary
Study on human responses and environmental factors in isolated close space
| Project/Area Number |
02302074
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| Research Category |
Grant-in-Aid for Co-operative Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
建築環境・環境工学
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| Research Institution | Hokkaido University |
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Principal Investigator |
OCHIFUJI Kiyoshi Hokkaido University, Faculty of Engineering, Professor, 工学部, 教授 (50001152)
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| Co-Investigator(Kenkyū-buntansha) |
MOCHIDA Tohru Hokkaido University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (40002050)
YOKOYAMA Shintaro Hokkaido University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (90002279)
KUBOTA Hideki Muroran Institute of Technology, Professor, 教授 (90002930)
MIYATA Toshimoto Chiba University, Faculty of Engineering, Professor, 工学部, 教授 (20219786)
NAGATA Tadahiko Fukui University, Faculty of Engineering, Professor, 工学部, 教授 (50020178)
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| Project Period (FY) |
1990 – 1992
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| Keywords | Close space / Room without window / Visual environment / Thermal environment / Occupant density / Indoor environment / Psychological effect / Physiological function |
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| Research Abstract |
The purposes of this study are to investigate the relation between indoor environmental factors and human responses in the isolated room without windows. Principal results are as follows : The minimum area of occupant density is 1.9 to 2.2 square meters per capita conducted by physiological and psychological measurement. The minimum space for occupancy alone, however, need 2.1 X 2.1 X 2.1 cubic meters through subjective evaluation. Air quality, illumination, sound, partitions, mirror and green plants affect the acceptable limitation of floor area and space size. The visual excitation is related to numbers of edges at existence. Blinds, plants, walls and furnitures are associated with the visual excitation. The sensitivity caused by air flow is of much importance for comfort and feeling which represents that of nature. The new evaluation and measurement for thermal environment in relatively small close room are proposed. These results are indicated that the new methods for calculating thermal environment are necessary instead of ET^* because the wetted factor varies through temperature and humidity under a condition of same skin temperatures. Analysis of heat and water transfer in the earth are performed and computer programs are developed.
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