ANNUAL CHARACTERISTICS OF INDOOR LIVING ENVIRONMENT IN FACILITIES FOR THE ELDERLY IN COLD REGIONS
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- HAYASHI Motoya
- National Institute of Public Health
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- HONMA Yoshinori
- Faculty of Human Life Science, Miyagigakuin Women's University
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- YAN Shuang
- Faculty of Human Life Science, Miyagigakuin Women's University
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- KIKUTA Koki
- Faculty of Engineering, Hokkaido University
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- HAYAMA Hirofumi
- Faculty of Engineering, Hokkaido University
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- KAYO Genku
- Faculty of Environmental Studies, Tokyo City University
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- SUZUKI Nobue
- Freelance
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- KAIHARA Noriko
- Dept. of Environmental Health, National Institute of Public Health
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- KIM Hoon
- Dept. of Environmental Health, National Institute of Public Health
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- BANDO Michiko
- Dept. of Environmental Health, National Institute of Public Health
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- KOBAYASHI Kenichi
- Dept. of Health and Welfare Services, National Institute of Public Health
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- OSAWA Haruki
- Former National Institute of Public Health
Bibliographic Information
- Other Title
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- 寒冷地の高齢者施設における室内生活環境の年間特性
- 寒冷地の高齢者施設における室内生活環境の年間特性 : フィンランド・エスポー及び北海道・札幌における室内温熱空気環境の実態
- カンレイチ ノ コウレイシャ シセツ ニ オケル シツナイ セイカツ カンキョウ ノ ネンカン トクセイ : フィンランド ・ エスポー オヨビ ホッカイドウ ・ サッポロ ニ オケル シツナイ オンネツ クウキ カンキョウ ノ ジッタイ
- State of indoor thermal and air environment at Espoo in Finland and Sapporo in Hokkaido
- フィンランド・エスポー及び北海道・札幌における室内温熱空気環境の実態
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Abstract
<p> The aim of this study is to verify the annual characteristics of indoor environments in facilities for the elderly in cold regions. The temperatures, humidity and CO2 concentrations were measured in rooms and common spaces of 4 facilities for the elderly in Finland Espoo and 4 facilities for the elderly in Hokkaido Sapporo through a year. At first, the daily characteristics and the annual characteristics of indoor environments were analyzed. Secondly, the required humidification rate to control the indoor relative humidity to meet 40RH% (SEHMB: Standard for Environment and Health Management of a Building) were calculated using the results of the long-term measurements. The required humidification rates on condition that carbon dioxide concentrations are same as the measured concentrations and the rate on condition that the concentration controlled to 800ppm were calculated and the results of Finnish facilities and those of Hokkaido’s facilities were compared. Thirdly, the energy loads for ventilation and humidification and the influenza concentrations were calculated with these conditions on ventilation. The results showed the followings.</p><p> 1. In winter, the outdoor temperatures of Finnish facilities are not so different from those of Hokkaido’s facilities. However in mild or cooling seasons, the outdoor temperatures and absolute humidity are higher in Hokkaido than in Finland.</p><p> 2. Temperatures are well controlled in winter by floor heating systems in both Finnish facilities and Hokkaido’s facilities.</p><p> 3. Even if the portable humidifiers were used in Hokkaido’s facilities, the humidity is lower than the standard 40RH% .The indoor humidity is lower in Finnish facilities and the indoor absolute humidity is same as the outdoor in Finnish facilities where humidifiers are not used at all.</p><p> 4. In summer, the absolute humidity decreases in Hokkaido’s facilities where cooling systems were used in the common spaces. However the absolute humidity did not decrease in Finnish facilities.</p><p> 5. The concentrations of carbon dioxide were enough lower than the SEHMB 1000ppm in all facilities. The concentrations change with the dwellers behaviors especially in Hokkaido’s facilities where they open windows and operate ventilation fan in order to control smell and risk of influenza infection.</p><p> 6. Because the ventilation rate are kept higher in Finish facilities, the risk of influenza infection is lower in Finish facilities than in Hokkaido’s facilities.</p><p> 7. Because heat recovery systems are used in Finish facilities, the energy load of humidification and ventilation is kept lower in Finish facilities.</p><p> These results showed that it is necessary to control both ventilation and humidification considering energy loads and influenza infection risks.</p>
Journal
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- Journal of Environmental Engineering (Transactions of AIJ)
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Journal of Environmental Engineering (Transactions of AIJ) 84 (761), 699-708, 2019
Architectural Institute of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282763131131136
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- NII Article ID
- 130007684642
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- NII Book ID
- AA11830377
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- ISSN
- 1881817X
- 13480685
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- NDL BIB ID
- 029861967
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed