Envirotech – Fort Frye

Technological DesignGrades 9-12

Fort Frye High SchoolMr. Andy Ring

Envirotech Project

• Comparing compact fluorescents to incandescent. – Environmental and personal health issues

• Research and Lab activity

• Personal home inventory and cost savings by switching to CFL’s

• Educating parents and the community with PowerPoint presentations.

• The next several slides are a sample of student work as well as sample activity sheets.

CFL’s

• + use 75% less energy

• + last ten times longer

• + create less heat

• - contains mercury

• - takes longer to warm up

Parts of a CFL 5/11/09 [image] http://www.energystar.gov/index.cfm?c=cfls.pr_cfls_aboutStudent- Matt Lang

Incandescent bulbs

• + brighter• + used for heating • + no mercury• - use more energy• - don’t last as long

Light bulb structure 5/13/2009 [image] http://home.howstuffworks.com/light-bulb1.htmStudent – Matt Lang

INCANDESCENT

• Heats tungsten filament to produce light

• Cheaper per bulb

• More expensive to use

• More energy required to run

• Efficiency as low as 10%

• Same technology as the year 1871

Student- Allen Bolden

Technology Education

Mr. Ring

Comparing Incandescent lamps and compact fluorescent lamps

Name _____________________ and ______________________

Directions: In the chart below record the temperature, wattage and light intensity for each sample. When complete, calculate the efficiency from the formula given in class.

Incandescent Lamp Sample Initial Temperature Temperature after

3 min Temperature

Difference Power in Wattage Light Intensity in fc Efficiency

1

2

3

Compact fluorescent Lamp Sample Initial Temperature Temperature after

3 min Temperature

Difference Power in Wattage Light Intensity in fc Efficiency

1

2

3

Differences Between CFL’s and Incandescent Bulbs

Student – Derek Bartmess

The Envirotech Light Bulb Test

0

100

200

300

400

500

600

700

800

10 13 23 40 60 100

CFL

Incandescent

Student – Ricky Arbaugh

Technology Education

Mr. Ring

Name ______________________________

Inventory Analysis

In this activity you will be taking a personal inventory of your home lighting appliances. Please record in the chart below all lights in your home; include each fixture type regardless of incandescent, fluorescent or other.

Room name

Fixture type

Bulb type

# of bulbs

Wattage per bulb

Total wattage

Hours per day

Total KW/hr

My Lighting Cont’d

• Currently there are 23 incandescent bulbs in my house. If these were replaced with CFL’s, the savings would equate to a savings of 175.46 dollars per year.

• Savings calculated at https://www.aepohio.com/CustomerService/HelpfulInformation/SavingEnergy/EnergyCalculator/LightCalcCSP.asp

Student – Allen Bolden

https://www.aepohio.com/CustomerService/HelpfulInformation/SavingEnergy/EnergyCalculator/LightCalcCSP.asp

My Own Lighting

• My home currently uses only fluorescent and CFL lighting

23%

77%

CFL

Fluorescent

Student – Quentin Bloomfield

How We Can Help

• The Ohio Department of Natural Resources maintains a map of recycling and waste management services.

• OSU offers guidance on how to properly dispose of household hazardous waste http://ohioline.osu.edu/cd-fact/0102.html

• Office of Compliance Assistance and Pollution Prevention gives a fact sheet on mercury in the household http://www.epa.state.oh.us/ocapp/p2/mercury_pbt/mercur.pdf

Student – Quentin Bloomfield

• The class studied alternative energy and then constructed one source- a Wind turbine.

Student built wind Turbine