Incandescent lighting
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Incandescent lighting

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Incandescent lighting Presentation Transcript

  • 1. The Incandescent Light Bulb Not such a bright idea anymore
  • 2.
    • Invented by Humphry Davy
    • 1802 in Great Britain
  • 3.
    • First practical lamp by Edison
    • 1879 in America
  • 4.
    • Edison’s Bulb
    • Incandescent in Nature
    • Became popular early 1900’s
  • 5.
    • Human Factors Goals
    • Increase Safety
    • Enhance Performance
    • Increase User Satisfaction
  • 6.
    • Safety
    • Can cause burns
    • Can cause fires
  • 7.
    • Performance
    • 90% Energy = Heat Output
    • Only 10% is converted to usable light
  • 8.
    • User Satisfaction
    • Much less efficient than alternatives
    • Usually appear yellowish
  • 9.
    • Why do we still buy these?
  • 10.
    • Set Effect.
  • 11.
    • Less efficiency
    • +
    • Cheaper initial cost
    • =
    • Popularity
  • 12.
    • Less efficiency
    • +
    • Cheaper initial cost
    • =
    • Logical Answer
  • 13.
    • Fluorescent Lighting Alternative
  • 14.
    • Fluorescent Bulb Alternative
    -100 watt output comparison- 80.3 Lbs CO2 365 Lbs CO2 Environmental Cost $3.17 $14.65 4 Hour/Day cost/year $0.28 $1.46 Annual Cost Per Bulb $2.89 $13.19 Electric Cost Per Year $4.00 $0.75 Per Unit Cost Less than 1 11 Bulbs Per Year 10,000 Hours 750 Hours Lifetime 75% Light | 25% Heat 90% Light | 10% Heat Light vs. Heat 22 Watt Compact Fluorescent 100 Watt Incandescent
  • 15.
    • Fluorescent Bulb Alternative
    $3.17 $14.65 4 Hour/Day cost/year $2.89 $13.19 Electric Cost Per Year Less than 1 11 Bulbs Per Year 10,000 Hours 750 Hours Lifetime 22 Watt Compact Fluorescent 100 Watt Incandescent
  • 16.
    • Energy Star Rated Bulbs
    • Consume 75% Less Energy
    • Last 10x Longer
    • Safer
  • 17.
    • Lesser Known Alternative
    LED Lighting (Light-Emitting Diodes)
  • 18.
    • Lesser Known Alternative
    Common Uses Flashlights Desk Lamps Indicator Lights
  • 19.
    • Lesser Known Alternative
    Pros Very cheap to power Produce almost no heat Color changing models
  • 20.
    • Lesser Known Alternative
    Cons About $35 for a bulb
  • 21.
    • Lesser Known Alternative
    As costs fall these will become the standard
  • 22.
    • Light Bulb Selection?
    • Less choice = quicker decision making
    • Long term thinking and logic are necessary
  • 23.
    • Light Bulb Selection?
    • Decision Complexity = Low
  • 24.
    • Light Bulb Selection?
    • Incandescent Light Bulb Ban
  • 25.
    • Light Bulb Selection?
    • Will be phased out in California by 2018 due to usage costs
    • Government buildings in CA will be converted to fluorescent lighting within 3 years
  • 26.
    • Light Bulb Selection?
    • Brazil & Venezuela at forefront to phase them out in 2005
    • In Australia incandescent lighting will be banned by 2010
    • European union proposed a ban on manufacturing new incandescent bulbs
  • 27.
    • So how does this affect you?
    • If you buy compact fluorescent bulbs
    • (preferably the eco-friendly kind)
    • Then you will
    • Save money
    • Have whiter light
    • Not get burned if you fall on one
  • 28. Questions?