| Project/Area Number |
59350039
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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 |
ARATANI Noboru Hokkaido Univ. Fac. of Engineering Prof., 工学部, 教授 (60001145)
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| Co-Investigator(Kenkyū-buntansha) |
TAKASHI Sasaki Hokkaido Univ. Fac. of Engineering Instructor, 工学部, 助手 (10133711)
SASAKI Hiroaki Hokkaigakuen Univ. Associate Prof., 工学部, 助教授 (60128816)
SUZUKI Kenzo Hokkaido Institute of Technology Associate Prof., 助教授 (70002235)
KUBOTA Hideki Muroran Institute of Technology Associate Prof., 助教授 (90002930)
OCHIFUJI Kiyoshi Hokkaido Univ. Fac. of Engineering Prof., 工学部, 教授 (50001152)
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| Project Period (FY) |
1984 – 1986
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| Project Status |
Completed (Fiscal Year 1986)
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| Budget Amount *help |
¥12,500,000 (Direct Cost: ¥12,500,000)
Fiscal Year 1986: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1985: ¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1984: ¥7,500,000 (Direct Cost: ¥7,500,000)
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| Keywords | Wind pressure fluctuation / Radon concentration / Refreshing effect / Range hoods / Attic ventilation / Earth contact space / Foggy climate / 熱回収換気 |
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| Research Abstract |
Ventialtons in Air-tightened House
Traditional wooden house in Japan had been adapted to humid climate in summer and had excessive ventilations throughout the year. It became deep-rooted custom to heat only a part of the house in winter and succeeded to the present where the air-tightness of the houses are increasing rapidly. Under these background, following studies had been done by eight research members.
1. Air-tightness of actual houses
2. Distribution and fluctuations of indoor temperature, humidity and <CO_2> concentrations in actual houses
3. Dynamic calculations and measurements of ventilation by wind pressure fluctuation
4. Air-tightening of the house and the concentrations of radon and radon-daughters
5. Refreshing effects of fluctuating air current
6. Whole house heating as the condition of air-tightening
7. Improvement of exhausting range hoods in kitchen
8. Actual conditions of ventilations in the attics and their use for a preheater of supply air to the living space
9. Actual conditions of earth contacted spaces and countermeasures for dehumidification
10. Efficiency of heat exchanging ventilation systems and their applications to the dehumidiffier
11. Indoor climate of the house in eastern Hokkaido having cold and foggy days in summer
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