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