著者

高田 和規 遠藤 卓 立松 宏一 村田 さやか 廣田 誠一 北谷 幸恵 鈴木 大隆 羽山 広文

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.82, no.732, pp.165-173, 2017 (Released:2017-02-28)

参考文献数

15

被引用文献数

1 1

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The purpose of this study is to quantitatively evaluate the effectiveness of the components of existing PVC windows in the country in providing thermal insulation, to identify the optimal conditions of the components and the insulation performance of windows with the components in the optimal conditions, and to conduct a performance test on samples under the practical specifications for production. We briefly summarize the results below. 1) For the frame, using a method of quality engineering, we examined the reduction in conductive heat flow across each cross-section for multiple regulatory elements, which would contribute to thermal insulation. We then derived the optimal condition (level) for each regulatory element and showed the reduction rate under the optimal condition (sash frame part 19%-21%, fix frame part 6%-10%, mullion frame part 22%). Furthermore, based on the SN ratio, we found that the reduction rate is highest with the following components: inner-frame insulator in the sash frame part and fix frame part, and physical properties of mullion reinforcement in the mullion frame part. 2) As for the glazing part, we examined the specifications of the Low-E film suspended air space of a insulated glass and observed the effect of a Low-E film, optimized the arrangement, and the optimal thickness of the air space for each gas fill. We also examined the thermal transmittance at the center of glass with xenon gas having 3 films (0.29 [W/(m2·K)]), and those at the center of glass with krypton gas having 2 films (0.39 [W/(m2·K)]). 3) We determined the thermal transmittance of the window (0.56 [W/(m2·K)]) with the combined optimal conditions for the frame and glazing parts. In actual manufacturing, however, there are two problems: a technical problem (of forming a metal film inside the frame cross-section and arranging phenolic foam insulator without leaving any space) and a high manufacturing cost (associated with filling xenon gas inside the insulated glass). We therefore examined the insulation performance of samples having practical specifications for production. As a result, we obtained a measured thermal transmittance of 0.63 [W/(m2·K)] in contrast to the calculated value of 0.65 [W/(m2·K)].

著者

岡田 成幸 村田 さやか 高井 伸雄

出版者

地域安全学会事務局

雑誌

地域安全学会論文集 = Journal of social safety science (ISSN:13452088)

巻号頁・発行日

vol.3, pp.241-248, 2001-11-01

参考文献数

4

被引用文献数

2

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Not so many municipal authorities in Japan have prepared the regional mitigation plans based on seismic hazard and risk assessment. As the result of this, most of authorities seem to adopt the standardized disaster prevention plans not paying attention to the regional characteristics such as seismic circumstances, geological conditions, and social backgrounds. In spite of that regional seismic risk is characterized by provoking causes and primary causes, there are some studies on the latter one. In this paper, we gave an example of the rule of making decision about the priority of mitigation plans from the point of view of rural settlement typology, which is an element of primary causes. We applied the method of paired comparisons to decision-making on priority measures for earthquake prevention planning.