7th International Ege Energy Symposium & Exhibition
June 18-20, 2014 Usak, Turkey
Investigation of Effects of LED Color on Power Performance of a
Solar Powered LED Lighting System for Selcuk University
FARUK KÖSE1, A, ADNAN BERBER2, B, M.NUMAN KAYA3, C, HALİT CETİN SOZER1, D KEVSER
DİNCER1, E
1,Selcuk University, Faculty of Engineering, Department of Mechanical Engineering, Selcuklu, Konya, Turkey 2Selcuk University, Faculty of Engineering Seydisehir Ahmet Cengiz, Department of Mechanical Engineering,
Selcuklu, Konya, Turkey
3Karamanoğlu Mehmetbey University, Faculty of Engineering, Department of Mechanical Engineering,
Karaman, Turkey
afkose@selcuk.edu.tr, baberber@selcuk.edu.tr, cmnumankaya@kmu.edu.tr, dhalit.sozer@ogrenci.selcuk.edu.tr, ekdincer@selcuk.edu.tr
Abstract: Generally, 20% of the electric power is used for lighting and rate of consumption of
the total electric power within the lighting category keeps increasing every year. Solar powered lighting systems are among the areas where solar panels are used most. In this study a solar powered light emitting diode (LED) lighting system was designed. While the best power performance was 91.67 Watt occurring at red color LED, the poorest performance recorded was 515.625 Watt taking place at the blue LED. It was also found that the color of the LED used affects the power performance of the solar panel.
Keywords: Solar energy, Light Emitting Diodes (LED), LED Performances.
1. INTRODUCTION
Due to the fact that solar energy is essentially a renewable form of energy, it has become a clean, reliable, efficient and abundant solution to lighting, one of our most important things in our daily lives. Besides being an inevitable resource of electric energy for off grid areas, solar energy is opted for, as a zero consumption system over the expensive power systems from the main network. In these systems, the batteries charged with solar energy during the daytime, at night they automatically, activate the LED lamps to provide illumination. This is a simple but effective system; it is chosen in areas where energy is available but digging and cable installation is not necessary. Similarly, the system is sought for in emergency situations where no alternative power source is available. Due to the fact that the system values comply with necessary international standards the system can also be used for illuminating parks, gardens and streets. Cable kinks and associated damages as well as power cuts never happen for the solar powered system requires no cable network connection. Solar (photovoltaic) cells have the ability to generate electric voltage when exposed to visible light or other light radiations.
