International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 02 | Feb -2017
p-ISSN: 2395-0072
www.irjet.net
Cost Benefits of Solar-powered LED Street Lighting System Case Study-American University of Sharjah, UAE Silpa Baburajan Graduate Student, Dept. of Electrical Engineering, Rochester Institute of Technology, Dubai, UAE ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - This report describes the cost effectiveness of
pressure sodium lamps for the street lighting purpose. The HPS lamps have several defects. It radiates a large amount of heat and requires 250W for each lamp, thereby increasing the cost of the energy. The AUS campus has a total of 705 posts and every post has 3 or 4 lamps. The power required by a post is 750 to 1000 watts continuously working for 12 hours a day. This would consume a lot of energy at high prices.
using solar powered LED (Light Emitting Diode) streets. The case study selected is the AUS (American University of Sharjah) campus, which still uses the conventional halogen lamps for its lighting requirements. The unit charge for current is 0.45 fils/KW.hr (fils-UAE currency subdivision) and based on this rate, it costs AUS, AED 373,852 per annum (AEDUAE currency) due to the usage of conventional in their street lighting. In this project, the aim is to reduce the cost of energy in the campus by replacing all of the conventional lamps with LED (Light Emitting Diode) lamps in AUS and then to calculate the economic benefit of using theses solar powered LED lights. Solar radiation energy is used to charge the battery during daytime, and offer energy to the LEDs light equipment at night. A dimmable Modula is designed and integrated to the system to dim the LEDs at night from 01:00-06:00am. This system has a double advantage- it reduces cost as well as utilizes the renewable energy (solar) available to us Key Words: Cost, Light Emitting Diode (LED), Power, Renewable Energy, Solar Energy
1. INTRODUCTION This document is template. Currently, energy crisis is one of the most discussed as well as researched topic in the world. Human depends a lot on the fossil fuels for their energy requirements. But, fossil fuels are limited in amount, expensive and polluting the environment. Now, one of the ways to reduce the dependency on the fossil fuels is to utilize renewable energy resources. Such resources are firstly free of cost and also available in abundance. In UAE, solar energy is the amplest, direct and clean form of renewable energy available. Total solar energy absorbed by the Earth is about 3,850,000 extra joules (EJ) in one year, which is even twice as much as all the non-renewable resources on the earth found and used by the human being, including coal, oil, natural gas, and uranium [1]. Taking this idea into consideration, we are designing a solar-powered LED street lights for AUS campus. This technique utilizes energy-saving technology to reduce energy consumption, electricity bill and hence improve utilization of solar energy available to us.
Figure 1: conventional Street Lamps in AUS The current technology which is being used in AUS is: Lamps: OSRAM, Vialox, 250 Watts, High-pressure Sodium Lamps (HPS) [2]. Ignitor: ZONDGERAT, Mzn 400 Sx. Ballast: BAG Electronics, HM/HIUAB, 250 Watts for High-pressure lamps.
2. MOTIVATION The American University of Sharjah currently uses high-
© 2017, IRJET
|
Impact Factor value: 5.181
|
ISO 9001:2008 Certified Journal
|
Page 11