著者

前沖 光彦 西名 大作 金田一 清香 正木 雄太

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.173-176, 2018 (Released:2019-10-30)

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標準住宅モデルを対象にCFD解析によってルームエアコンでのスリット開口による全館暖冷房方式における温熱環境および空気流分布の評価を行い、エアコンの設置位置や床や天井の開口率によって温熱環境が異なることが分かった。冬期暖房時、床下でのエアコンの位置や向きは、いくつかの場合で基礎構造が空気の流れを遮ることがあるため、重要な要素である。1階の開口率を小さく、2階をより大きな開口率とすることが住居全体の均一な温熱環境につながった。

著者

長岡 洋和 金田一 清香 西名 大作

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3年度大会(福島)学術講演論文集 第4巻 通風・換気 編 (ISSN:18803806)

巻号頁・発行日

pp.25-28, 2021 (Released:2022-11-02)

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ダクトレス全館暖房における換気手法の違いによる温熱環境および空気環境をCFD解析により評価した。個別方式から集中方式とすることで、高負荷時では、個別方式の局所的な温熱不快箇所の改善が確認できた。一方、低負荷時では、集中方式での空気環境の悪化がみられた。以上より、ダクトレス全館暖房では、負荷率により変動する吹出風量を踏まえた上で、温熱環境および空気環境の両面において適切な換気手法とすることが重要であることが示された。

著者

侯 寧 西名 大作 杉田 宗 姜 叡 大石 洋之 金田一 清香 清水 晶浩

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.86, no.785, pp.670-679, 2021-07-30 (Released:2021-07-30)

参考文献数

8

被引用文献数

3

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The presentation technology about architectural design has been developed in recent years. Virtual Reality as one of the newest method which was born from the modern technology, has been used at practical design. In addition, some of the universities had set up VR laboratories for design education. Compared to the traditional method using 2D drawings and models for presentation, VR will be expected to understand the space more easily without specialized knowledge, and it will be more useful for improving the designers’ ability. Therefore, in order to grasp the designers’ awareness about the applicability of VR Space, we conducted a hearing survey with 12 university professors in Chugoku region who worked in the field of architectural design or design education. According to the results, many of the professors thought “Scale feeling” was “the ability to measure the distance with the eyes”, and they had negative viewpoints about to learn “Scale feeling” in VR space, such as “It is difficult to understand the distance in VR Space” or “Drawing by hand is more useful to nurture the scale feeling than VR”. Therefore, this research was focused on the “Scale feeling”, and conducted an experiment to verify the effectiveness of VR by comparing the learning effect about “Scale feeling” in “VR Space” with “Real Space”. The procedure of this experiment, first, for grasping the original “Scale feeling” of subjects, the subjects were asked to answer the length of 15 objects in Test Space. Then, the subjects were divided into two groups to learn “Scale feeling” in two types of learning spaces. One group learned in “VR Space” and another group learned in “Real Space”. After learning, the subjects came back to “Test Space” and answered the length of 15 objects as the same manner at first. The difference between the “Answered length” and “Actual length” in “Test Space” was defined as the “Inaccuracy”. Finally, we compared the learning effects by the average and the standard deviation in “Inaccuracy” between the two groups. The degree of “Inaccuracy” reduction was similar. Therefore, the “Scale feeling” can be developed in VR space as same as Real space. Although, in “VR space”, the objects which have no actual shape have a larger standard deviation of the “Inaccuracy” than “Real Space”, we considered that it’s more difficult to grasp the distance between objects without shape in “VR space”. For the future research, we will consider in more detail based on the visual characteristics of the learning method.

著者

八杉 克志 西名 大作 村川 三郎 金田一 清香 安藤 元気 石田 正樹

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.702, pp.715-723, 2014-08-30 (Released:2014-09-30)

参考文献数

12

被引用文献数

1 1

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The purpose of this study is to clarify the operating conditions of two kinds of domestic electric appliances which are a washing machine and a clothes dryer installed in a bathroom. Based on the measurements of electric power consumption in the 100 electrified housing located in Hiroshima area, 39 washing machines and 35 clothing dryers were examined. The operating conditions of the appliances varied in the frequencies of operation, the operating hours and the starting time of operation. Especially, the conditions of the operation with drying function differed from those without drying function. The housing was classified into several clusters by the Cluster analysis based on the starting time of operation. Each cluster showed different tendencies on the operating conditions.

著者

安藤 元気 西名 大作 村川 三郎 金田一 清香 石田 正樹

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.692, pp.799-807, 2013-10-30 (Released:2014-07-10)

参考文献数

26

被引用文献数

1 1 1

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In this paper, the energy consumption of the electrified housing located in Hiroshima area was grasped, and the relationships between the energy consumption by hot water supply system and the housing attributes of residents were examined. To predict the annual and monthly energy consumption, the Quantity Theory Cluster I was applied. Based on the analysis, the factors affecting to the energy consumption were clarified, and the influence of energy consumption was compared among the factors.As for the predictive equations for energy consumption, the multiple correlation coefficients of annual value and monthly values were explained with 0.852 and 0.740-0.827 respectively. Also, it was clarified that “types of water heater” had major influence on energy consumption throughout a year, and “number of frequency for filling hot water into a bathtub in winter” and “age of the first child of the family” had influence in winter season.