T URN OFF THE LIGHTS ? Melanie Derby and Emily Porter-Goff y y - PowerPoint PPT Presentation

Feb 05, 2023 •263 likes •335 views

T URN OFF THE LIGHTS ? Melanie Derby and Emily Porter-Goff y y http://www.lightbulbmarket.com/product/050260_60-Watt-A-19-Philips-Light-Bulb Today Buy appliances Test energy usage of small appliances of small appliances T IME

T URN OFF THE LIGHTS ? Melanie Derby and Emily Porter-Goff y y http://www.lightbulbmarket.com/product/050260_60-Watt-A-19-Philips-Light-Bulb
� Today � “Buy” appliances � Test energy usage of small appliances of small appliances
T IME TO P URCHASE T IME TO P URCHASE A PPLIANCES B UY A DISHWASHER , WASHING MACHINE HOT WASHING MACHINE , HOT WATER HEATER WATER HEATER , REFRIGERATOR , TOILET $4500 B UDGET $4500 B UDGET
W ATER U SAGE AND C OSTS � How many times toilet fl flushes/day per person? h /d ? � How long does it take to � How long does it take to shower? � New York http://automobile.automotive.com/101292/0902-2009- � Water $1.50 for 1,000 gal ford-f150-lariat/nicely-tailored-cabin.html � Visualize � 1 800 gallons fills a 6 5 ft � 1,800 gallons fills a 6.5 ft pickup truck bed http://www.eia.doe.gov/electricity/epm/table5_6_a.html
E NERGY U SAGE AND C OSTS � kWh- unit of energy gy � Amount of energy to run ten 100W light bulbs for one hour � New York � Electricity $0.18/kWh y http://www.chinese- letter.com/learnimage/LightBulbIdeaHand/
K ILL A W ATT TM � Divide into six groups g p � At each station � Predict power usage of appliance in Watts li i W tt � Measure power with Wattmeter � What was surprising? http://www.amazon.com/gp/customer-media/product- gallery/B00009MDBU/ref=cm_ciu_pdp_images_0?ie=UTF8&i ndex=0
I MPACT OF A LIGHT BULB - ONE 100W LIGHT BULB ON FOR AN ENTIRE YEAR � One 100W light bulb g � 1 year= 365*24 hours= 8760 hours � Coal-fired power plant- 40% of thermal energy in coal converted to electricity � Requires 715 lbs of coal! � Requires 715 lbs of coal! � Also contributes: � 1850 lbs of CO 2 � 5 lbs SO 2 � 5 lbs NO x http://www.ilgp.org/Membe rs/timtacker/news/news_ite m.2005-10-09.4907886392 http://www.howstuffworks.com/question481.htm

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