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전과정평가(LCA)를 통한 LED스탠드의 환경성평가 및 개선방안
박성수 ( Sung Su Park ),이창손 ( Chang Son Lee ),최봉구 ( Bong Gu Choi ),서혜진 ( Hye Jin Seo ),이화조 ( Hwa Cho Yi ) 한국전과정평가학회 2014 한국전과정평가학회지 Vol.15 No.1
It is a trend to use LED lamps which have high efficiency and long life time to save the consumption of electricity. LED``s are used already not only in automotive, TV, road and highway lighting but in many household as lighting lamps. One problem of LEDlamps is generation of heat which causes decline of efficiency. In this study heats generated from two different commercial LED desk lamps depending on lighting time and effects on brightness was analysed. The brightness levels of lamps were measured in a dark room. The temperature, brightness, and electricity of each lamp were measured every 30 minutes. Lux per used electricity was calculated and compared. By the experiment we could determine that temperature of lamp rise and brightness falling with time. In this work two experiments are done to improve this characteristics of LEDstand lamp.