라벨이 #power인 게시물 표시

LED 조명의 분광 분포에 따른 건물에너지 소비

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LED 조명의 분광 분포에 따른 건물에너지 소비 Energy consumption by Spectral Power Distribution Of LED lighting 저자 정호연, 김효인, 김곤, 윤근영 학술지정보 생태환경건축  발행정보 한국생태환경건축학회 2012년  피인용횟수 0 자료제공처 국회도서관 KISTI  주제분야 자연과학 > 생태학, 공학 > 건축공학 <초록> Lighting energy accounts for approximately 20% of the electrical energy used worldwide. Thus, High efficiency Light emitting diode(LED)lighting is getting more popular as the next generation lighting replaced to traditional lighting fixtures. Also, LED lighting not only has a long lifetime but also can realize a variety visual environments through the wavelengh control. The lighting energy varies depending on the Spectral Power Distribution(SPD) even though the Illuminance level is same. Therefore, This study indicates that the difference of indoor energy consumption under the same illuminance level when Spectral Power Distribution(SPD) is different. As a result, Lighting energy consumption under red-color emphasizing SPD is about 10%

국내 원자력발전소의 주제어실 화재 피난 리스크 평가를 위한 화재 시뮬레이션

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국내 원자력발전소의 주제어실 화재 피난 리스크 평가를 위한 화재 시뮬레이션 Fire Simulations for the Abandonment Risk Assessment of Main Control Room Fire in Domestic Nuclear Power Plant 저자명 강대일, 김길유, 장승철, 유성연 문서유형 학술논문 참고문헌 21건 학술지 한국안전학회지 제29권 제4호 통권126호 (2014. 8) pp.199-207 1738-3803 발행정보 한국안전학회 |2014년 |한국 |한국어 주제분야 공학 > 안전공학  서지링크 국회도서관 , KISTI , 한국학술정보 <초록> In this paper, to systematically assess the abandonment risk of main control room (MCR) fire, fire simulations with Fire Dynamics Simulator were performed and abandonment probabilities were estimated for the MCR bench-board fire of domestic reference nuclear power plant. The fire simulation scenarios performed in this study included propagating and non-propagating fires of the MCR bench-board, and the availability and unavailability of heating, ventilation, and air conditioning system (HVACS). The following results were obtained. First, temperature was the major abandonment impact factor for the MCR bench-board fire i