| Project/Area Number |
24360240
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Architectural environment/equipment
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| Research Institution | Tokai University |
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Principal Investigator |
IWATA Toshie 東海大学, 工学部, 教授 (80270627)
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIZAWA Nozomu 東京理科大学, 理工学部, 教授 (40349832)
MOCHIZUKI Etsuko 千葉工業大学, 工学部, 教授 (80458629)
HIRATE Kotaro 東京大学, 工学研究科, 教授 (70165182)
MUNAKATA Jun 千葉大学, 工学研究科, 教授 (80323517)
AKASHI Yukio 福井大学, 工学研究科, 教授 (10456436)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2012: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Keywords | 光環境 / 省エネルギー / オフィス / 照度 / 不均一照明 / 変動照明 / 昼光照明 / 輝度 / 実態調査 / 必要照度 / 照明基準 / 節電 / 被験者実験 / 消灯 |
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| Outline of Final Research Achievements |
This study records office lighting under power-saving policies enacted in the aftermath of the Great East Japan Earthquake. From the real situation investigated, basic requirements of office lighting are extracted and a new energy-saving lighting method is developed.
The office lighting under the power-saving policies shows that strategies for reducing energy for office lighting includes not only lamps or luminaires with higher efficiency but also a lower illuminance, a smaller illuminated area and a shorter lighting duration. They had been avoided due to a possibility to deteriorate quality of lighting environment. This study proposed a “non-uniform and non-stable” lighting environment based on human visual properties using daylight, which can reduce energy consumption. This brings us to the starting line for new office lighting standards.
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