Analysis on High-Power Seaport LED Luminaire with Uniform Light Distribution Based on Optimized Lens and Heatsink
| Autor: | Jeungmo Kang, Jinsheon Kim, Woojin Jang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Technology
QH301-705.5 QC1-999 020209 energy 02 engineering and technology Thermal management of electronic devices and systems Heat sink Automotive engineering law.invention Light source law 0502 economics and business 0202 electrical engineering electronic engineering information engineering General Materials Science Biology (General) QD1-999 Instrumentation Diode Fluid Flow and Transfer Processes 050210 logistics & transportation seaport luminaire overall uniformity average illuminance Physics Process Chemistry and Technology 05 social sciences General Engineering Glare (vision) Illuminance Engineering (General). Civil engineering (General) Computer Science Applications Power (physics) Lens (optics) Chemistry heat dissipation Environmental science light distribution TA1-2040 |
| Zdroj: | Applied Sciences, Vol 11, Iss 4035, p 4035 (2021) Applied Sciences Volume 11 Issue 9 |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11094035 |
| Popis: | In the case of light-emitting diode (LED) seaport luminaires, they should be designed in consideration of glare, average illuminance, and overall uniformity. Although it is possible to implement light distribution through auxiliary devices such as reflectors, it means increasing the weight and size of the luminaire, which reduces the feasibility. Considering the special environment of seaport luminaires, which are installed at a height of 30 m or more, it is necessary to reduce the weight of the device, facilitate replacement, and secure a light source with a long life. In this paper, an optimized lens design was investigated to provide uniform light distribution to meet the requirement in the seaport lighting application. Four types of lens were designed and fabricated to verify the uniform light distribution requirement for the seaport lighting application. Using numerical analysis, we optimized the lens that provides the required minimum overall uniformity for the seaport lighting application. A theoretical analysis for the heatsink structure and shape were conducted to reduce the heat from the high-power LED light sources up to 250 W. As a result of these analyses on the heat dissipation characteristics of the high-power LED light source used in the LED seaport luminaire, the heatsink with hexagonal-shape fins shows the best heat dissipation effect. Finally, a prototype LED seaport luminaire with an optimized lens and heat sink was fabricated and tested in a real seaport environment. The light distribution characteristics of this prototype LED seaport luminaire were compared with a commercial high-pressure sodium luminaire and metal halide luminaire. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|