著者
多和田 友美 伊香賀 俊治 村上 周三 内田 匠子 上田 悠
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.75, no.648, pp.213-219, 2010-02-28 (Released:2010-06-07)
参考文献数
18
被引用文献数
16 11

Various researches highlight that indoor air quality affects performance of workers in offices. Although good indoor air quality improves work performance, it also increases energy consumption. In this study, we achieved a field survey in a real office in order to investigate the relationship between thermal environment, productivity, and energy consumption. In addition to the monitoring of indoor environmental quality and energy consumption, subjective experiments were conducted. In order to evaluate subjective performance, workers and students responded to questionnaires, and to evaluate objective performance, students simulated three types of office works. By calculating room temperature and worker's subjective performance, we demonstrate the correlation between room temperature and worker's performance (R2=0.22, p
著者
伊香賀 俊治 江口 里佳 村上 周三 岩前 篤 星 旦二 水石 仁 川久保 俊 奥村 公美
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.76, no.666, pp.735-740, 2011-08-30 (Released:2012-01-13)
参考文献数
23
被引用文献数
35 23 7

It takes many years to recover the initial investment cost for installing housing insulation through savings from energy reduction (Energy Benefit: EB), since construction cost is very high in Japan. This long payback time is the major barrier to the promotion of well-insulated houses. However, it has been found that if Non-Energy Benefits (NEB) of well insulated houses, such as improvement in personal health, reduction of medical expenses and decline in absences from work are all taken into account, the time required to recover the initial investment cost would change from 29 to 16 years. Therefore recognition of NEB is expected to encourage residents to invest in residential thermal insulation. NEB of well-insulated houses is thus evaluated regarding human health in this study.
著者
福積 慶大 安藤 真太朗 伊香賀 俊治 中川 朝陽
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 令和2年度大会(オンライン)学術講演論文集 第6巻 温熱環境評価 編 (ISSN:18803806)
巻号頁・発行日
pp.225-228, 2020 (Released:2021-10-28)

In November 2019, 980 subjects (670 effective samples) in a rural village (Yusuhara Town, Kochi Prefecture) completed a measurement of indoor environment, and questionnaire that included information about life habits and various health status. Analysis of the results indicates that house without insulation, elderly, obesity, living alone, long home time, heating system causes at risk of being below 18℃.
著者
雨宮 多佳子 伊香賀 俊治
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26年度大会(秋田)学術講演論文集 第6巻 温熱環境評価 編 (ISSN:18803806)
巻号頁・発行日
pp.197-200, 2014 (Released:2017-11-15)

近年、学校施設の老朽化、夏期における気温の上昇等により、冷房設備の導入が進んでいる。学校施設の温熱環境は、学習効率や空間の満足度に影響を与えると既往研究により明らかにされているが、夏期と冬期、複数の空間、学校間で、温熱環境を把握し、児童生徒に与える影響を検証した事例は少ない。そこで、本研究では、学校施設の温熱環境が児童生徒の学習効率、満足度に与える影響の検証を目的に、神奈川県の公立小中学校16校を対象に、実測調査とアンケート調査を実施した。
著者
星 旦二 伊香賀 俊治 海塩 渉 藤野 善久 安藤 真太朗 吉村 健清
出版者
日本公衆衛生学会
雑誌
日本公衆衛生雑誌 (ISSN:05461766)
巻号頁・発行日
vol.69, no.4, pp.297-306, 2022-04-15 (Released:2022-04-26)
参考文献数
33

目的 本研究の目的は,我が国の冬期における戸建て住宅各室の室温と外気温の実態と共にその関連性について,国土交通省の定める省エネ地域区分別に明確にすることである。方法 本研究の対象者は,日本全国に居住している3,781人である。調査は2014年度冬季より,国土交通省の支援を得て全国的に実施されている,SWH(Smart Wellness Housing)事業の一環として5年間実施した。 各部屋別(居間・寝室・脱衣所)に測定された冬期二週間の床上1 m室温と床近傍室温,それに気象庁が測定した外気温の実態とともに,その関連について共分散構造分析を用いて解析した。これらの関連は,同時分析により全国の省エネ地域区分別に解析した。分析ソフトは,SPSS22.0とAMOS22.0を用いた。結果 冬季における住居内床近傍室温は床上1 m室温よりも低く,時間帯でみると床近傍ないし室温共に朝が低い温度を示した。部屋別室温較差は,居間と脱衣所間で大きかった。 室温を地域別にみると,省エネ地域2の室温が最も高く,省エネ地域4の室温が最も低いことが示された。冬期の外気温は各室温よりも床近傍室温と強い関連がみられた。結論 我が国の住宅床近傍室温は,床上1 m室温よりも低いことと,居間と脱衣所とでは大きな温度較差がみられた。省エネ地域区分4の住宅床近傍室温と床上1 m室温が最も低いことが示された。室温が外気温から影響される度合いは,省エネ地域7を除き地域番号とともに大きくなることが示された。
著者
柳井 悠希 伊香賀 俊治 川久保 俊
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.77, no.676, pp.533-539, 2012-06-30 (Released:2012-07-27)
参考文献数
29
被引用文献数
1 7

In order to clarify the effect of classroom environmental quality on students' health and learning performance, field measurements, assessments using CASBEE-School (Comprehensive Assessment System for Built Environment Efficiency for school), and questionnaire survey for students and their teachers were conducted in 12 elementary schools. From the results of the survey conducted in both summer and winter, a significant correlation was observed between score for Q1 (indoor environment) category of CASBEE-School and students' satisfaction with their classroom in each school, and effectiveness of assessments by CASBEE-School was validated. However, there is still room for further improvement of assessment system in detail. In addition, a significant correlation between students' satisfaction and both of physical conditions and concentration was observed in this study.
著者
川久保 俊 伊香賀 俊治 村上 周三 星 旦二 安藤 真太朗
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.79, no.700, pp.555-561, 2014-06-30 (Released:2014-07-15)
参考文献数
32
被引用文献数
9 11

Previous studies have revealed relationships between specific residential environmental factors and residents' health status. However, no previous study has considered the comprehensive health risk due to overall residential environment. Therefore, a large-scale nationwide questionnaire survey was conducted using CASBEE Health Checklist to examine the residential environment of detached houses and residents' health status. Results show that overall residential environment was likely an important determinant of health and was associated with disease prevalence among residents.
著者
生方 萌佳 伊香賀 俊治 平田 潤一郎 林 侑江
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28年度大会(鹿児島)学術講演論文集 第6巻 温熱環境評価 編 (ISSN:18803806)
巻号頁・発行日
pp.217-220, 2016 (Released:2017-10-31)

Recently, children's physical strength is decreased.This study aimed to examine the relationships between physical activity and indoor thermal environment among Japanese preschool children. Research was conducted in winter as actual measurements at 5 kindergartens. As a result, cold air temperature near the floor and difference of temperature between nursing room and restroom were significantly associated with reduction of children’s physical activity.
著者
岡崎 愛 伊香賀 俊治 平田 潤一郎 西村 三香子
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29年度大会(高知)学術講演論文集 第6巻 温熱環境評価 編 (ISSN:18803806)
巻号頁・発行日
pp.21-24, 2017 (Released:2018-10-20)

執務者の知的生産性向上は多大な経済効果をもたらし、室内温熱環境は知的生産性に大きな影響を与えると指摘されている。また、床近傍の低温環境が温熱不満や皮膚温低下に繋がることから、床近傍室温が冷えを介して知的生産性に及ぼす影響の検証を目的とし、被験者実験を行った。床近傍の低温環境は、足元の皮膚音低下、不快感を伴う冷えを生じさせ、知的生産性を低下させる可能性が示された。
著者
本多 英里 伊香賀 俊治 大平 昇 岡島 慶治 海塩 渉
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.81, no.724, pp.523-533, 2016 (Released:2016-06-30)
参考文献数
61
被引用文献数
3 6

Decline in the quality of sleep increases the morbidity and risk of lifestyle diseases. In addition, daytime sleepiness causes traffic accidents and decreased work efficiency. According to a survey conducted by the Japanese Ministry of Health, Labour and Welfare, 20% of people experience sleep problems, and decline in sleep quality in particular is serious. One factor that has been linked to decline in sleep quality is high heat and humidity in summer. Against this background, some studies have examined the effects of thermal environment control on sleep. Appropriate use of air conditioning has been shown to improve sleep quality; however, maintaining a good indoor thermal environment using air conditioning increases energy consumption. Given the present state of climate change, the reduction of energy consumption in the Japanese residential sector is a pressing issue. However, an excessive reduction in air conditioning use for the purpose of saving energy could create a poor sleep environment. The effects of thermal environment control using air conditioning on sleep quality and energy consumption have been independently investigated in several previous studies. In this research, we elucidate the impact of thermal environment control on both sleep and energy consumption during the summer. The effect of thermal environment control on sleep and energy saving was unified as a monetary value. Increase in energy consumption can be estimated as an increase in air conditioning costs. Conversely, because reduced sleep efficiency translates to reduced working efficiency, improved sleep efficiency was converted into monetary value as a reduction in wages. Eight healthy male university students participated in this study. The study was performed in a two-story maisonette room in an apartment building with high environmental performance. Experiments were conducted in August 2013 and 2014. In the 2013 experiments, we examined the effect of thermal environment control on sleep and energy consumption. Three thermal environmental control scenarios were used: an air conditioner set at continuous operation at 26.0 °C (Case I); an air conditioner set at continuous operation at 28.0 °C (Case II); and natural draft only (Case III). The increase in air conditioner temperature setting from 26.0 to 28.0 °C used in this study resulted in a 0.03 kWh/day/m2 reduction in 8-h energy consumption (Fig. 6). Sleep efficiency was significantly higher for Case II (average SET* during sleep, 27.4 °C) (Fig. 8). Low SET* caused by excessive air conditioner use and high SET* caused by not using an air conditioner adversely affected sleep efficiency. The relationship between sleep efficiency and work efficiency was verified in the experiments conducted in August 2014, confirming that the economic impact of decreased sleep efficiency could be converted to a monetary value. Working efficiency decreased by 1.1% per 1% decrease in sleep efficiency (p<0.01) (Fig. 13). The combined economic impact of energy saving and sleep quality was calculated. The economic impact of improved sleep quality was much greater than that of energy saving, and the economic value of Case II (average SET* during sleep, 27.4 °C) was the highest (Fig. 14). This study found that sleep quality influences work efficiency, demonstrating the importance of improving sleep. To create a comfortable sleeping environment, further verification of thermal environment control in more detail is necessary.
著者
川久保 俊 伊香賀 俊治 村上 周三 新谷 圭右
出版者
日本LCA学会
雑誌
日本LCA学会研究発表会講演要旨集
巻号頁・発行日
vol.2007, pp.118-118, 2007

近年中山間地域において環境負荷の増大、少子高齢化に伴う財政状況の悪化、コミュニティの脆弱化といった諸問題が急速に進展しており、多くの集落が存続危機の状態にあると指摘されている。そこで本研究では、地域の持続可能性を環境/経済/社会の側面から評価・予測することを目的とし、環境工学、計量経済学、社会科学に基づいた持続可能性評価モデルを構築した。そして、モデル地域において実際に持続可能性の評価を行った。
著者
佐藤 正章 村上 周三 高井 啓明 伊香賀 俊治 半澤 久 柳井 崇 遠藤 純子 吉澤 伸記
出版者
一般社団法人日本建築学会
雑誌
日本建築学会技術報告集 (ISSN:13419463)
巻号頁・発行日
no.23, pp.259-264, 2006-06-20
被引用文献数
1

We have developed assessment systems for buildings known as CASBEE (Comprehensive Assessment System for Building Environmental Efficiency). CASBEE for new construction and that for existing building were already developed and reported in former reports. We have newly developed the assessment system for renovation. Then we would report the outline of it.
著者
梅本 大輔 関谷 佳子 中川 浩 上林 清香 河本 紗弥 伊香賀 俊治
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.88, no.807, pp.429-438, 2023-05-01 (Released:2023-05-01)
参考文献数
38
被引用文献数
1

The thermal environment of a house is a factor that affects sleep quality. Thus, for maintaining good health, it is important for houses to have an appropriate thermal environment. The influence of ventilation and air conditioning on a house’s thermal environment cannot be ignored. Here, we investigated differences in ventilation and air conditioning equipment by comparing and evaluating the sleep quality of residents using individual air conditioners or central air conditioning. The results suggested that the central air conditioning group had reduced sleep latency, which might increase sleep efficiency in summer.
著者
梅本 大輔 関谷 佳子 中川 浩 上林 清香 伊香賀 俊治
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.88, no.806, pp.325-333, 2023-04-01 (Released:2023-04-01)
参考文献数
40
被引用文献数
1

Indoor temperature environment and air quality affect the health of residents of houses, and thus efforts are underway to improve the insulation of houses. In this study, we conducted a questionnaire survey to investigate changes in health symptoms and quality of life after moving into a house with a central air conditioner, floor heating, and room air conditioners. The results revealed that residents of houses with central air conditioning tended to have a higher rate of improvement in health symptoms and quality of life compared with other types of air conditioning.
著者
松本 実紗 伊香賀 俊治 山川 義徳 内田 泰史 村上 周三 安藤 真太朗 満倉 靖恵 中島 侑江
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30年度大会(名古屋)学術講演論文集 第6巻 温熱環境評価 編 (ISSN:18803806)
巻号頁・発行日
pp.137-140, 2018 (Released:2019-10-30)

寒冷暴露が脳機能に悪影響を及ぼすと仮定し、高知県梼原町在住の90名について、2016年度及び2017年度の冬季に住宅の温熱環境測定、対象者の血圧及び活動量測定、MRI 装置による脳機能検査、アンケート調査を実施した。多変量解析の結果、個人属性、生活習慣、血圧及び活動量を考慮した上でも、居間の床上1.1mの冬季室温が寒冷な居住者は全脳領域神経線維拡散度の得点が有意に低いことを確認した。