Energy Efficiency of Lighting
http://www.newvictheatre.org.uk/educate/images/lightbulb.jpg
Amy Hinkel & Byanca Moreno
Lighting• Lighting is a form of energy
• About 25% of home’s electrical use
• Lighting can affect the way you feel, work, and interact with others.
• Increasing light efficiency can lower energy bills
• Needed in the dark
• Thomas Edison invented the incandescent light bulb
http://home.howstuffworks.com/light-bulb.htm
Goals
• Ability to see in the dark• Save energy• Reducing the pressure to build new
power plants and generating less waste for landfills
• Cutting down the greenhouse gas emissions that contribute to global warming
Fact“If every American home replaced just
one light bulb with a ENERGY STAR – qualified bulb, we would save enough energy to light more than 3 million homes a year, more than $600 million in annual energy costs, and prevent greenhouse gases equivalent to the emissions of more than 800,000 cars”
Obstacles
• They burn out
• Incandescent light bulbs produce greenhouse gases
• Some are expensive
• People not realizing the benefits of switching
Political/Economic issues
• Expensive
• Uses a lot of energy
• Contains mercury
Incandescent Lighting
• most common in homes
• Thomas Edison invention
• traditionally delivered about 85% of household illumination
http://static.howstuffworks.com/gif/light-bulb-label.jpg
Incandescent Lighting Cont. • Inexpensive and easy to find
• The light is warm emitting most of the light from the yellow to the red end of the spectrum
• Available in many varieties
Compact Fluorescent
• Combines energy efficiency of fluorescent lighting w/ incandescent fixtures
• Consist of 2 parts: a gas- filled tube, magnetic/ electronic ballast
http://search.msn.com/images/results.aspx?q=compact+lighting&go=Search+Images&form=QB#focal=f87bd34191a482b168b6a8b6f1a6d34c&furl=http%3A%2F%2Fwww.preciosa.com%2FNR%2Frdonlyres%2F80F3034E-6FE7-456E-B0B3-9156D3FFB056%2F0%2Fcompact_lamp.jpg
Compact Fluorescent Light (CFLS)
• use up to 75% less energy than incandescent lights
• Last ten times longer than a regular incandescent light bulb.
• More expensive than incandescent lights
http://keetsa.com/blog/wp-content/uploads/2007/09/cfl.jpg
• Electricity Visible light• Last longer• Entertaining • Easily dimmed• Silent operation• Available in many colors• Low-voltage power supply• Lack of availability for white LEDs
http://www.vorne.com/
http://en.wikipedia.org/wiki/Image:Seven_segment_display-animated.gif
http://micro.magnet.fsu.edu/primer/lightandcolor/ledsintro.html
Quality of LightingLight Emitted
Light Longevity
Light Prices
Light Wattage
Light Brightness
Flood Lighting
• Provide large amounts of light with minimal energy usage
• Convenient and efficient
http://news.thomasnet.com/images/large/532/532176.jpg
http://www.cooperlighting.com/specfiles/pdf/Streetworks/GPF.pdf
Natural Lighting
• paint light colored walls to maximize use of natural light to cut the electricity use
• All lives because of natural lighting
Sky Lights
• Enhances natural lighting
• Cuts down on electricity usage
• Very nice looking and brightens the room up
http://www.fakro.ca/img/certy_usa/FX_zespolenie400x408.jpg
Light Tubes
• Used to distribute lighting throughout buildings
• aka Solar pipes, daylight pipes, or solar light pipes
http://www.ambience-lighting.com.au/borderlight/bordertubesclear.jpg
Fiber Optics• Used in communication, permits transmission over longer distances, at higher data rates than other forms
• Used instead of metal
• Used as sensors
www.sercos.com/technology/fiber_optics.htm
Indoor/Outdoor Lighting
www.directoutdoorliving.com/lighting.aspx
64.9.80.131/consumer/onlinecatalogs.html
Indoor Lighting
•Used in bathrooms, halls, bedrooms, and other often used rooms
•Use light colored walls to maximize natural lighting
Outdoor Lighting
•Aesthetics- illuminate exterior
•Security- illuminate house grounds
•Utility- illuminate porch/ driveway area for navigation
Outdoor Solar Lighting
• Provides free electricity
• Uses solar cells to convert sunlight to electricity which is stored during the night
• Must receive sunlight to work
www.overstock.com/Home-Garden/Lilies-Three-pi...
Bibliography• http://www.preciosa.com/preciosa/en/lighting/products/orders/support/sources_of_lig
ht.htm• http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/leds.html• http://www.mainlandmart.com/led144rbg.jpg • http://static.howstuffworks.com/gif/light-bulb-label.jpg• http://www.newvictheatre.org.uk/educate/images/lightbulb.jpg• http://mscares.com/pubs/publications/p2269.html• http://www.2facts.com/TSOF/temp/47717temps1400171.sap?DBType=TSOF• http://www.2facts.com/TSOF/temp/47720temps1600011.sap?DBType=TSOF• http://www.eere.energ.gov/consumer/your_home/lighting_daylighting/index.cfm/myto
pic=11980• http://www.toolbase.org/Technology-Inventory/Electrical-Electronics/white-LED-lightin
g• http://acept.asu.edu/courses/phs110/expmts/exp13a.html • http://micro.magnet.fsu.edu/primer/lightandcolor/ledsintro.html• http://www.articles3000.com/Home-Improvement/112507/Outdoor-Flood-Lighting-
Information.html• http://www.cooperlighting.com/specfiles/pdf/Streetworks/GPF.pdf• http://www.lightingdesignlab.com/articles/LED_fund/led_advant.htm• http://www.light-bulbs.us/incandescent.htm
Created by: Amy and Byanca