- 著者
- 岩下 剛 花田 良彦 合原 妙美
- 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.69, no.585, pp.55-60, 2004-11-30 (Released:2017-01-27)
- 参考文献数
- 12
- 被引用文献数
- 6 8
The impact of the room temperature on the occupants' recollection of watched video program was studied in two sessions, i.e., the experiment under warm condition (29℃) and that under cool condition (22℃). After watching 30 minutes video program, the subjects answered the questionnaire, which asked the contents of the program. It was found that there was significant difference in the percentage of correct answer in the rather difficult questions of the above questionnaire between two sessions. The percentage of correct answer under the cool condition was more than that under the warm condition. The evaluation for the indoor environment and the subjects' internal condition by the subjects under the warm condition was worse than that by the subjects under the cool condition. Besides the experiments, the subjects' memorization faculty was tested. There was no significant difference in the memorization faculty between two sessions of the subjects.
- 著者
- 合原 妙美 岩下 剛 田辺 新一
- 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.352-363, 2023-04-01 (Released:2023-04-01)
- 参考文献数
- 35
- 被引用文献数
- 1
Air temperature and CO2 concentration were measured in classrooms with ventilation system from April 2018 through March 2022. It is assumed that, under the COVID-19 circumstances, windows of the classrooms, where ventilation system was working, were basically kept open throughout a year. The average air temperature at foot level was 11°C during winter period because of cold outdoor air infiltration. The estimated ventilation rate tended to decrease during winter period. However, the estimated ventilation rate per person more than 30 m3/h was obtained in case of half number of pupils in the classroom with Hybrid-Flexible lesson for the whole day.
- 著者
- 合原 妙美 岩下 剛
- 出版者
- 日本建築学会
- 雑誌
- 日本建築学会計画系論文集 (ISSN:13404210)
- 巻号頁・発行日
- vol.67, no.559, pp.29-36, 2002-09-30 (Released:2017-02-04)
- 参考文献数
- 11
- 被引用文献数
- 5 6
Field survey on indoor air quality was conducted in summer, autumn and winter season, in three elementary schools in Kagoshima city. In every classroom, in summer and autumn, the open degree of a opening was high, and CO_2 concentrations under pupils staying in the classroom were kept below 1000 ppm. In winter, since changing into the state where the opening was closed by the fall of temperature is expected, it is presumed in this case at the time of the lesson end for 45 minutes that indoor CO_2 concentration reaches at about 2260 ppm. The CO_2 emission rate from one sixth grader child was calculated as 0.014m^3/h. In the state where the opening was closed, by operating two sets of ventilation fans, the air change rate of 3 h^<-1> or more is secured, and it is thought that indoor CO_2 concentration is also set to below 1500 ppm at the time of the lesson end.