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Thread: EFFECTS OF RED AND BLUE LED ON INDOOR PLANTS

Created on: 04/15/10 11:21 PM

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drbush





Joined: 04/15/10

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EFFECTS OF RED AND BLUE LED ON INDOOR PLANTS
04/15/10 11:21 PM
Attachment: research abstract rev.doc

EFFECT OF RED AND BLUE LED ON INDOOR PLANTS
DAVID BUSH 1*, DR CHAO LI2*, DR LORENZO3*
1*ELECTRONIC ENGINEERING TECHNOLOGY DEPARTMENT, FLORIDA A&M UNIVERSITY, TALLAHASSEE, FLORIDA 32308
2*ELECTRONIC ENGINEERING TECHNOLOGY DEPARTMENT, FLORIDA A&M UNIVERSITY, TALLAHASSEE, FLORIDA 32308
3*LANDSCAPE DESIGN AND MANAGEMENT DEPARTMENT, FLORIDA A&M UNIVERSITY, TALLAHASSE, FLORIDA 32308

ABSTRACT
Recently, LEDs have been used more and more widely as lighting sources, in replacement of conventional fluorescent sources, because of new technology has made LEDs bright enough. Besides, LEDs have advantages of smaller size, specific wavelength, low thermal output, adjustable light intensity and quality, as well as high photoelectric conversion efficiency. LED lights have been promoted as one of “Green Technologies”. The goal of my project is to build a prototyping indoor lighting system and examine the effect of red and blue led lights on individual indoor plants. Research has found that red and blue lights are essential for plant growth. Red lights mainly contribute to the plant photosynthesis; while blue lights are primarily responsible for vegetative growth, such as leaves. To construct this project, we are building a prototype system which consists of twelve lights. Eight of the lights are red LED lights and the other four lights are blue LED lights. These lights are placed on an aluminum board which is 20 by 40 centimeters. A 36-Watt LED Driver/controller is constructed. It can use AC voltage ranged from 100V to 265V. In addition, we incorporate a cooling system in the design. It can also be used for ventilation. The ventilation system will be used in lowering the panel temperature and will give about 10 percent more light. Further research needs to be done during the summer to determine the effects on the plants when mixing different amounts of red and blue LED lights.
Keywords: high-brightness LED, luminous intensity, photosynthesis, light sources


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