著者

木本 慶介 相賀 洋 長井 達夫

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.87, no.802, pp.836-845, 2022-12-01 (Released:2022-12-01)

参考文献数

29

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Double skins are an effective technique for achieving ZEB. In this research, we will use meta-simulation and AI to construct a general-purpose blind control that can minimize the energy consumption of lighting and air conditioning when daylight is used. First, we built a simple double-skin meta-simulation model to clarify the thermal performance and energy consumption performance when various kinds of blind controls are performed. Next, we performed machine learning and element analysis using AI with the simulated result. Then, we clarified the most effective parameters on thermal performance and energy consumption performance.

著者

大木 知佳子 岡本 俊英 只木 寿理恵 山本 竜也 相賀 洋 吉澤 望

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.84, no.766, pp.1067-1076, 2019 (Released:2019-12-30)

参考文献数

31

被引用文献数

1 4

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Daylight harvesting is now attracting attention not only from energy saving but also from the viewpoint of improving the health and comfort of people working in the building. Daylighting standards, such as EN 17037:2018, provides the target values to obtain sufficient daylight, and also prescribe the evaluation criteria for view and glare. We used a Meta_Simulation platform that combined Radiance and NewHASP to evaluate lighting and air conditioning energy of exterior and interior sun shading devices. We confirmed the behaviour of basic parameters by combining glare and view evaluations from Radiance and using the graphical algorithm editor Grasshopper to calculate air conditioning/lighting energy, glare index and view. By utilizing the plug-in software OCTOPUS, we evaluated air conditioning/lighting energy usage, glare, and view based on four variables of exterior and interior sun shading devices and the optimal solution for Tokyo (Hyakuri) was confirmed. For glare, the vertical illuminance of the viewpoint was not high in the building targeted by our simulation, and because no cases exceeded the allowable simplified DGP value of 0.35, the threshold was lowered to evaluate glare in the multi-objective optimization calculation. Under the European Standard, view is evaluated based upon the horizontal angle of the window, the distance to adjacent buildings, and the number of layers for sky, landscape, and ground that can be seen (European committee for standardization, 2019). We used a simple evaluation based upon the ratio of sky that could be seen from a sample point, however it is possible to incorporate the view metrics of the EN 17037:2018 into our new module using Radiance. We conducted a multi-objective optimization calculation for the annual fixed angle of vertical louvers and of blinds typically used in the sun shading devices. In the future, we plan to apply optimization calculations to complex sun shading devices such as slat cut-off angle controls for blinds, moveable or curved surfaces for exterior sun shading.

著者

相賀 洋

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

巻号頁・発行日

vol.2015, pp.93-96, 2015

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<p>振替休日制度やハッピーマンデー制度により3連休以上となるような連休が、冷房・暖房ピーク発生時期と重なる可能性が高くなりつつある。たとえば冷房ピーク発生時期と重なる場合、連休中の透過日射や待機電力による発熱により室温が上昇し構造体に蓄熱され、連休明け以降に蓄熱負荷となって冷房最大熱負荷に影響を及ぼす。本報では実在年の気象データによる12年間の長期間熱負荷計算を行い、その最大熱負荷における連休・待機電力の影響を求めたので報告する。</p>

著者

中山 哲士 石野 久彌 郡 公子 永田 明寛 長井 達夫 相賀 洋

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 (ISSN:18803806)

巻号頁・発行日

vol.2004, pp.517-520, 2004

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We measured the sensible and latent heat flux on the glass roof with water pond and the grass yard at the Oasis2l. The sensible heat flux on the water pond was 1/10 times larger than on the grass. The Bowen ratio is 2.0 on the grass and 0.2 on the water pond. And we suggested a possibility that the measurement of sensible heat flux above the void area using Scintillometer. The heat flux and temperatures around grass surface was calculated by numerical models. In as a consequence, the flux value was calculated almost properly. The thermal impacts of Oasis2l that the influence to the around thermal environment and radiant environment and so on are confirmed.

著者

永田 明寛 石野 久彌 郡 公子 長井 達夫 相賀 洋

出版者

社団法人空気調和・衛生工学会

雑誌

学術講演会論文集

巻号頁・発行日

vol.16, no.1, pp.513-516, 2004-08-20

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The underground open space in OASIS 21 is a semi-outdoor space. It has a glass roof with a pond but has no wall above ground. Therefore its environment is strongly influenced by the natural wind. In this study, ultrasonic anemometers are placed above the glass roof and in the underground space to measure wind speed and direction. The vertical velocity distribution in the underground space and the wind speed and direction of underground pathways are also measured.