著者
加藤 真司 桑沢 保夫 石井 儀光 樋野 公宏 橋本 剛 池田 今日子
出版者
日本緑化工学会
雑誌
日本緑化工学会誌 (ISSN:09167439)
巻号頁・発行日
vol.38, no.1, pp.39-44, 2012 (Released:2013-04-16)
参考文献数
11
被引用文献数
3 4

集合住宅における緑のカーテンによる夏季の室内の温熱環境改善効果を明らかにするため,独立行政法人都市再生機構が所有する集合住宅を使用して,様々な条件設定をした複数の住戸の室内温熱環境改善効果を比較測定したものである。比較条件は,緑のカーテンの設置量の違いと,代替手法である簾との比較である。室内温熱環境の実測の結果,緑のカーテンによる室温の低下が確認できたとともに,簾よりもより大きな室温低下傾向が確認できた。また,この結果をもとに緑のカーテンの節電効果を算定した。さらに,戸窓の開放時においては,通風性と日射遮蔽性を併せ持つ緑のカーテンの特徴から,体感温度においても簾と比べて緑のカーテンの有利性が確認できた。
著者
齋藤 宏昭 三浦 尚志 桑沢 保夫
出版者
日本建築学会
雑誌
日本建築学会環境系論文集 (ISSN:13480685)
巻号頁・発行日
vol.78, no.688, pp.461-470, 2013-06-30 (Released:2013-08-30)
参考文献数
13
被引用文献数
2 1

This study focuses on impact of vapor proofing and airtightness on hygrothermal performance for wooden exterior walls. Partial air and moisture penetration into fibrous insulation layer of the wall were mainly addressed in terms of practical issue for the hygrothermal design. Laboratory experiments using wall assemblies with partial defects for vapor proofing such as outlet were implemented to better understand moisture distribution and air flow within the walls when pressure difference occurs between the indoor and the outdoor rooms. After a developed HAM analysis model was verified by the lab-experiments, long-term simulations were performed to clarify moisture accumulation within the wall under various climate conditions. The simulation results indicated that requirements of both the vapor proofing and the air tightness can be mitigated in mild climate regions. Additionally, the results showed that the partial defect at the top of walls causes the moisture accumulation.
著者
大澤 元毅 池田 耕一 林 基哉 桑沢 保夫 真鍋 純 中林 由行
出版者
日本建築学会
雑誌
日本建築学会環境系論文集 (ISSN:13480685)
巻号頁・発行日
vol.68, no.566, pp.65-71, 2003-04-30 (Released:2016-12-28)
参考文献数
17
被引用文献数
4 5

The purpose of this research is to know the present status of the indoor air chemical pollution by VOCs in Japanese houses in 2000. The concentrations of formaldehyde, toluene, xylene and ethylbenzene were measured in five thousand houses, and the following results were obtained. 1) In 27.3% of surveyed houses, the indoor concentrations of formaldehyde exceeded the guideline established by the Ministry of health, labor and welfare of Japanese Government. And those of toluene, xylene and ethylbenzene were 12.3, 0.013 and 0% respectively. 2) The formaldehyde concentrations correlated well to the indoor temperatures. 3) The averages of the formaldehyde concentrations in houses according to the age of year after construction were analyzed, and the concentration in houses built after 1997 was lower than that in 1996, which showed the highest value.
著者
岡部 実 大澤 元毅 桑沢 保夫
出版者
公益社団法人 空気調和・衛生工学会
雑誌
空気調和・衛生工学会大会 学術講演論文集 平成18年 (ISSN:18803806)
巻号頁・発行日
pp.511-514, 2006-09-05 (Released:2017-08-31)

Floor heating system is widly used in Japan. Japanese building code about indoor air quality was based on 28 degree temperature and 50% humidity in summer. Floor heating system have made of plywood, MDF and other woodbased material included folmaldehyde and when running floor heating in winter, temperature inside the floor heating system become above 28 degree. When floor heating system running in winter, it is required to measure the indoor air quality in the full size house. Hot-water system and electric heater system was constructed for interior finish of the house and indoor chemical substance concentration was measured. Folmaldehyde concentration showed below the 100ug/m^3 for running floor heating system in winter.