• 제목/요약/키워드: Efficiency of lighting

검색결과 510건 처리시간 0.025초

광기여 필름 LED 팬던트 작업조명시스템 주관평가와 성능검증 (Study of Efficiency Test and Subjective Responses about Pendent Task Lighting System Using Phosphor Luminescent Film LED)

  • 차광석;김회서
    • 설비공학논문집
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    • 제23권3호
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    • pp.188-193
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    • 2011
  • For a long time work or study, pendent task lighting system prepared with phosphor luminescent film LED was developed for eye protection and working efficiency improvement. Developed lighting system was used together with pendent and ambient lighting. Such as, we made comfortable lighting environment system. Evaluation for developed lighting system, that had proceeded to Mock-up test and subjective evaluation. Also It had proceeded that lighting environment analyzed and compatibility valuation of installation. In subjective evaluation, the students have expressed themselves satisfied to phosphor luminescent film LED lighting system. In Mock-up test, It is not problem to intensity of illumination, luminance and color temperature. Therefore, developed LED lighting system was installed at the Daegu apartment. It is having a P.O.E study progress to phosphor luminescent film LED lighting system.

절대광속 측정기와 적분구를 이용한 벌브타입 LED 램프의 광효율 측정분석 (Comparative Analysis on luminous efficiency of bulb type LED lamps using both photogoniometer and integrating shpere)

  • 전상규;나종혁;김도환;이현영;조미령;최용원;양승용
    • 한국조명전기설비학회:학술대회논문집
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    • 한국조명전기설비학회 2009년도 추계학술대회 논문집
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    • pp.149-151
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    • 2009
  • This paper gives a comparative analysis on the luminous efficiency of the bulb type LED lamps. we compare and analyze the measurement values bulb type LED lamps using both photogoniometer and integrating sphere. The volt and watt of one 1map are 220 V and 7 W, respectively. The volt and watt of other one are 100 V and 5.3 W, respectively. the values of those were 79.7 1m/W and 76.9 1m/W in the integrating sphere, respectively. Similarly, the values of those were 80.2 1m/W and 79.3 1m/W on the photogoniometer, respectively. As a result, the value of luminous efficiency can be measured using either integrating sphere or absolute goniometer regardless of the difference in case of bulb type LED lamps.

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고효율 조명기기 프로그램의 수용가 반응 조사분석 (Survey and Analysis of Customer Behavior on High-Efficiency Lighting Program)

  • 박종진;이창호;곽미애;김진오
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2004년도 추계학술대회 논문집 전력기술부문
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    • pp.278-280
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    • 2004
  • This paper analyzes the customer behavior on the high-efficiency lighting program from three angles, that is, rebates, electricity rates and the cost of measures. After deregulation, the importance of high efficiency DSM programs has been more and more increased. Especially, the new high-efficiency lighting apparatus has been developed and adopted as DSM program, so it is needed the policy to promote the lighting program diffusion.

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LED 조명용 카본 마그네슘 신소재 방열 특성 연구 (A Study of Characteristics of Heat Dissipation Carbon Magnesium New Materials of LED Lighting)

  • 손일수;신성식
    • 한국전기전자재료학회논문지
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    • 제26권12호
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    • pp.915-919
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    • 2013
  • This is the study on the development of fusion heat dissipation of carbon magnesium materials. The purpose of this study is for effective utilization of heat emission which is the core of LED lighting. The result of study enabled the derivation of side satisfying result of making the surface temperature of lighting to be below $70^{\circ}C$ (actual measurement: $58^{\circ}C$) using magnesium. The lighting products that use magnesium was made possible based on the result of this study. Also from the performance aspect such as light distribution, the measurement of light efficiency demonstrated the level of 90 lm/W. Therefore the commercialization of lighting was made possible and the efficiency could be further enhanced by supplementation of LED performance.

스마트 가로등 시스템의 전력선통신 필터 성능 개선 및 효율 평가 (PLC Filter Capacity Improvement and Efficiency Evaluation of Smart Street Lighting System)

  • 김명호
    • 전기학회논문지P
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    • 제58권2호
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    • pp.154-157
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    • 2009
  • In order to give handiness to the management of the existing street lighting system which is based on the one way communication and to reduce the maintenance cost, the power line communication filter in the two way communication which is based on the CDMA communication and power line communication was improved and accordingly the stability of the communication performance was improved. Also, the efficiency of existing street lighting system and smart street lighting system was evaluated as Visual studio system. As a result, when the number of street lights is 10,000, the hours of daily work fell 50% and the number of necessary maintenance staff decreased 40%. Compared to the maintenance costs of the existing street lighting system, it could be expected to have the cut costs of almost 100 million won a year on the basis of 60 switch board and 1,200 street lights.

LED 조명산업을 통한 융복합기술의 활성화 방안에 관한 연구 (A Study on the activation of fusion technology through LED lighting industry)

  • 허만일;유왕진
    • 조명전기설비학회논문지
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    • 제26권4호
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    • pp.1-5
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    • 2012
  • By using LED optical devices and improving the efficiency of optical devices as well as lighting apparatus for humans, LED lighting industry puts the purpose of manufacturing the main products related with information, electric, large-sized LCD BLU, automobile, shipbuilding, agriculture, medical treatment, environment, and telecommunications, etc. Moreover, the main products and the industrial lighting products are manufactured with fusion, as the result, LED lighting industry provides various effects as well as sources of technology based on practical use of LED technology in order to develop the industry from the perspective of the lower price, the higher efficiency, the higher function, the deeper reliance. In the future, not only the development of new LED technology but also the fusion and combination of digital IT technologies using wire-wireless communication, sensor, controller, and artificial intelligence will be expected to create new industrial fields.

독립형 태양광 발전을 이용한 효율적인 하이브리드 LED 가로등 조명관리 시스템 설계 (An Efficient Hybrid LED Street Lighting Management System Design using Standalone Solar Photovoltaic)

  • 홍성일;인치호
    • 제어로봇시스템학회논문지
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    • 제20권9호
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    • pp.984-993
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    • 2014
  • In this paper, we propose a design for an efficient hybrid LED street lighting management system using standalone solar photovoltaic. The proposed efficient hybrid LED street lighting management system was composed of hybrid power conditioning system, gateways, LED street lights and a monitoring server. The hybrid power conditioning system was designed to charge produced power by solar photovoltaic panels in day time, and supply power to the LED street lights in night time. If there is insufficient power, the system was designed to operate using firm power, because the system utilizes photovoltaic power. A system control algorithm allied to the lighting management system, and experimented by being configured to the functions that are able to perform real-time monitoring and remote control through the lighting management system even when absent. In the result of the efficiency analysis of the hybrid lighting management system proposed in this paper, we were able to increase the energy efficiency compared to existing lighting control systems by reducing power consumption and electricity costs.

Highly efficient and transparent white OLED for lighting

  • Lee, Jeong-Ik;Lee, Jong-Hee;Lee, Joo-Won;Shin, Jae-Heon;Chu, Hye-Yong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.482-485
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    • 2009
  • We have fabricated transparent white organic light emitting diodes (WOLEDs) for lighting application. The structure property relationship of hybrid WOLEDs has been investigated and optimized devices showed high efficiency. Introduction of transparent cathode of LiF/Al/Ag into the hybrid WOLED led highly efficient WOLED with good transparency.

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오피스 건물의 실내 조명 유형 및 계획특성에 관한 연구 (A Study on the Lighting Plan Characteristics of Office Buildings)

  • 이연수;하미경
    • 한국실내디자인학회논문집
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    • 제22권1호
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    • pp.47-54
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    • 2013
  • For the office work environmental design, the importance of the design management is increased to improve operation efficiency as well as the aesthetic environmental implementation of the function today. Lighting is a required element ineffective operation environment. It has become more important for the aesthetic, economic, and practical reasons, to consider the luminous environment and the lighting of visual tasks separately. When the brightness is insufficient, productivity deteriorates, and the layout of the lighting located by mistake causes the fatigue of eyes. Productivity rises to office in a large number of studies so as satisfaction is low in general in the dark office, and to be bright. Therefore the purpose of this research is to suggest the right direction of lighting design of office building area. 11newly renovated office buildings are selected for this luminous environment research. We could conclusions as following through this research. First, it was planned brighter than the recommended lighting level in the most space. It shows that the accurate lighting design criteria is needed in order to achieve proper lighting environment. Second, the application of the LED lighting fixtures is continuously increased in the recent office lighting environment. It is explained that it is applied for reasons of the electrical energy reduction and the maintenance efficiency with the long life time. Third, the consideration of the lighting plan for the difference of working types is not enough. with various communication configuration through an independent plan, and the effective lighting plan that appropriateness preparation design and energy saving area vailable must be applied. Fourth, the lighting environment of the lobby needs a specialized lighting plan as are presentative space of the building.

사무소건물의 LED조명기구 방열장치의 성능 분석 연구 - 덕트 내 유량변화 중심으로 - (Performance of heat sinks for LED luminaires in office buildings - Focused on the variation of air flow rate in duct -)

  • 박지우;안병립;김종훈;정학근;장철용;송규동
    • KIEAE Journal
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    • 제14권6호
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    • pp.81-86
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    • 2014
  • In recent years, many researchers have considered the building energy consumption reduction accordingly to deal with abnormal climate changes and greenhouse gas reduction. However, the lighting energy use ratio has increased in spite of the development of the high efficiency lighting device. Therefore, the study aims to produce the LED lighting applications for the effective lighting heat removal by using the heat characteristics of LED lighting and analyzing the heat removal effect. In order to increase radiant heat efficiency, the heat pipe and heat sink was attached on PCB as LED lighting applications. Experiment was conducted to verify the temperature and air velocity of inside duct: thermocouples, anemometer. The heat removal effect of LED lighting applications was measured by observing the temperature of the lighting applications and the change of air velocity in duct. The experiment shows that the temperature change in the duct according to air velocity was $0.9{\sim}5.8^{\circ}C$. It is also concluded that heat removal was calculated from 33 to 81W.