• Title/Summary/Keyword: Lighting Energy

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A Study on the Applications of Renewable Energy in LEED (Leadership in Energy and Environmental Design) Certified School Projects - Focused on Solar and Thermal Energy - (LEED 인증 받은 학교건축사례에서 재생에너지 활용 연구 분석 - 태양광 및 태양열 에너지를 중심으로 -)

  • Yoon, Hea-Kyung;Woo, Seung-Hyun;Choi, Hyo-Sik
    • Journal of the Korean Institute of Educational Facilities
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    • v.20 no.2
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    • pp.25-32
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    • 2013
  • The purpose of this study is to analyze the state-of-the-art solar energy system design cases among LEED(Leadership in Energy and Environmental Design) certified school projects and to explore the feasibilities for their applications in domestic school design. Investigating the sold wattages in some kinds of buildings, the wattages per an educational facility is the second-largest after that per an industrial facility. That shows that our attention should be actively directed to the utilization of New and Renewable Energy in school facilities. Therefore photovoltaics systems, lighting systems and solarthermal facilities of solar energy systems were analyzed in the LEED cases. Findings demonstrate that applications of solar energy systems in K-12 educational facilities have been executed more than those in higher educational facilities. However, K-12 educational facilities and higher educational facilities by private funds are not categorized as Green Buildings by Support for Making Green Buildings Act. That fact is needed to be amended. Besides that, design developments are needed for building integrated photovoltaics systems and solarthermal facilities in domestic educational facilities.

A Study on the Effective M&V Method for the Lighting Control System (조명제어시스템을 위한 효율적인 계측 및 검증(M&V) 기법 연구)

  • Kim, Jeong-Uk;Boo, Chang-Jin;Kim, Jeong-Hyuk;Oh, Seong-Bo;Kim, Ho-Chan
    • Journal of Energy Engineering
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    • v.20 no.3
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    • pp.216-223
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    • 2011
  • This paper presents an effective energy saving algorithm for lighting control systems using M&V method in various buildings and factories. It is important to aggregate a various demand side resource which is controllable at the peak power time to reduce the energy cost. Previous demand side algorithm appropriate for building is based on peak power. In this paper, we develop the new energy saving algorithm using M&V method to reduce the quantity of power consumption. The simulation results show that the proposed method is very effective.

A study on the utilization status and technical development of solar tracking daylighting systems (추적식 자연채광시스템 현황 및 기술 개발에 관한 연구)

  • Kim, Won Sik;Jeong, Hae Jun;Chun, Wongee;Han, Hyun Joo;Lim, Sang Hoon
    • Journal of Energy Engineering
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    • v.25 no.4
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    • pp.62-73
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    • 2016
  • Daylighting systems offer substantial advantages over conventional ones in illuminating the building interior. Especially, considering that lighting accounts for about 28% of total energy consumption in buildings, the use of daylighting systems deem very important in lessening the dependency on artificial lighting. This work has carried out a survey and analysis to explore the characteristics and current status of various daylighting systems with solar tracking features recently introduced in Korea.

Implementation of Efficient Indoor Emotion Lighting Control System based on Bluetooth (블루투스 기반의 효율적인 실내 감성조명 제어 시스템 구현)

  • Jo, Eun-Ja;Lin, Chi-Ho
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.14 no.6
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    • pp.207-213
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    • 2014
  • In this paper, we propose Bluetooth based on efficient indoor-emotion-lighting control system. The proposed Bluetooth based on indoor-emotion-lighting control system was designed to be automatically controlled by the motion sensor light and using a Bluetooth module may be controlled to light up or mobile PC, wall pad. In addition, It was designed the LED lighting On/Off control the environment according to Humidity, the temperature, illumination, motion sensors. System based on the bluetooth is automatic control possible using the illumination sensor, and by selecting the desired lighting partial control can be designed. The experimental efficiency results of the proposed indoor-emotion-lighting control system were designed to provide an internal environment adapted to a resident, were able to maximize the energy savings, have reduced power consumption than the traditional simple On/Off control system.

A Study on the Comparison of the PV Module Generation from Daylight Irradiation and Indoor Lighting Savings with Lighting Simulation (일사량 분석을 통한 PV모듈 발전량과 시뮬레이션을 이용한 실내 조명에너지 절감량 비교)

  • Park, Yoon-Min;Hong, Seong-Kwan;Choi, An-Seop
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.24 no.12
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    • pp.17-24
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    • 2010
  • Recently, BIPV system which is good enough for maintenance and functions with the shading system is being used. However BIPV system with the shading system is different from existing PV module because of using flexible PV module. Prior to the application of the BIPV system, the clearness index was calculated by Erbs et al.(1982) and analyzed for the amount of electric power generation of sky irradiance with measured data. To predict electric lighting energy savings in daylit space, electric lighting power savings with amount of PV module electric power generation was compared by using Relux 2010 software in this study.

A study on daylight distributions for applying effective daylight responsive dimming systems in offices (사무공간에서 효율적인 조광제어시스템 적용을 위한 주광분포 연구)

  • Kim, Ga-Young;Choi, An-Seop
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2005.05a
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    • pp.123-128
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    • 2005
  • This study purposes to increase the energy-saving effects by reducing excessive intensity of radiation of artificial lighting through analyzing daylight incident A photosensor sends amounts of detected luminous flux to digital control unit(DCU) as a signal and then, it can decide dimming ratios, received a proper dimming signal from DCU. Generally it Is effective to control artificial lighting with the different control ratio of each row by setting a photosensor as same numbers and rows as artificial lighting. However, it is ineffective to do in initial costs of systems aspect in offices. As a result of grasping the distribution of daylight previously, we can dim different dimming ratios to each row of artificial lighting by a single photosensor.

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The Study of Measurement Method for an electrodeless lamp (무전극 램프의 광특성 측정방식에 대한 고찰)

  • Lee, Se-Hyun;Cho, Mee-Ryoung;Shin, Sang-Wuk;Hwang, Myung-Keun
    • Proceedings of the KIEE Conference
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    • 2003.10a
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    • pp.68-71
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    • 2003
  • In this paper, We have investigated the luminous flux, luminous efficacy, spectral energy distribution, colour rendering index, correlated colour temperature of electrodeless QL lamp system as a center method of measurement and side method of measurement. A result of measurement is that center method of measurement and side method of measurement is almost similar. Therefore, Sample that didn't measured because of big size and heavy weight can be measured by center method of measurement.

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Measurement of the Surface Emissivity of the LED Lighting Module (LED 조명 모듈 표면의 방사율 측정에 관한 연구)

  • Park, Jin-Sung;Huh, Chang-Su
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.26 no.6
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    • pp.493-501
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    • 2013
  • LED lighting is sensitive because it made by semiconductor. So it has been researched about radiation of heat technologies for a long time. In addition, measurement and assessment a radiation of heat also conducted. It is necessary to get a date of accuracy temperature on the board after LED driven for measuring Junction temperature of the LED Lighting. For this research, we use 5 chip which is 4 W power on top of LED lighting board made by aluminum. Thermal camera effects to emissivity depending on material and property of the surface in LED board because it determines thermal energy which emitted from material surface. it is not only thermal camera has not a standard about emissivity. It has an error of temperature when emissivity was measured by thermal camera. we confirmed that emissivity and reflected temperature depending on color and quality of the surface throughout experiment.

Measurement of UV radiation of LED lighting

  • Ku, Seong-Mo;Im, Jong-Min;Yi, Chin-Woo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.25 no.3
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    • pp.7-14
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    • 2011
  • Many countries and researchers in the lighting field have focused on the LED light source as a solution to energy savings and environmental pollution. The LED light source consumes less power, has a long life and is highly economical. It is vibration and shock-resistant, and environment friendly as well. But LED lighting has some problems. In particular, the photobiological safety of LED light sources is emerging as an issue. Ultraviolet radiation from the LED light source emitted directly to the human body over a long period of time is harmful. In this paper, UV radiation from white LED was measured. Finally, the LED light source emits UV radiation, but it is relatively small when compared to others.