Team 10 Device Comparison Incandescent vs Fluorescent Light

Team 10 Device Comparison: Incandescent vs. Fluorescent Light

Team 10 l Members ¡ Emil Balceta ¡ Dennis ¡ Stanley Obiang Chuang

Introduction l Incandescent Light ¡ Created 120 years ago ¡ Electricity heats up a tungsten wire filament ¡ Temperature is heated to 2500ºK

Introduction cont. l Fluorescent Light ¡ Filled with Inert gases and mercury ¡ The current excites the mercury ¡ Requires a ballast

Replacement Guide

Comparison Incandescent vs. Fluorescent Light Bulbs 100 Watts Incandescent light bulb 23 Watts Compact Fluorescent Number of Sockets 25 Burned per Day (hr) 4 Electricity Tax Rate: 11. 20% Price per Killo Watts: $0. 10 # of Bulbs Needed 2 bulbs per year 1 bulb per 7 years Purchase Price: $0. 75 $11 Maintenance Cost: $37. 50 per year $275 per 7 years Useful Life: 750 hrs 10, 000 hrs Lumens Produced: 1690 1500 Source: U. S. Department of Energy, Energy Information Administration

Operating Cost l Incandescent ¡ Energy ¡ 2 Light cost: $365 per year bulbs needed a year per socket ¡ Maintenance ¡ Total cost: $37. 50 cost: $443. 38

Operating Cost cont. l Fluorescent ¡ Energy ¡ 1 Light cost: $83. 95 per year bulb needed over 7 years per socket ¡ Maintenance ¡ Total cost: $275 cost: $368. 35

Present Worth Cost l Replacement cost l Energy cost l Operating cost l Over a span of 6 years l Discount rate: 3%

Total Present Worth of Cost l 100 W Incandescent light bulb ¡ l 23 W Fluorescent light bulb ¡ l $3, 316. 47 $729. 77 ∆PWC value ¡ $2586. 70

Life Span Sensitivity

Energy Cost Sensitivity

Socket Quantity Sensitivity

Useful Life Sensitivity

Technology Difference l Fluorescent bulbs outlast up to 13 incandescent or halogen bulbs. (Lights of America)

Cost Difference l Fluorescents can typically save 8 to 12 times their cost over a span of 6 years. (Lights of America)

Temperature l 90% of the energy consumed by an Incandescent bulb is wasted heat. (Lights of America)