energy lab - Q5....

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Nicole Parnes 3/1/10 Personal Energy Consumption Introduction: The purpose of this lab is to examine energy consumption through electricity, gas, heated hot water, oil heating, and transportation. My hypothesis is that electricity is the most consumed energy source because we depend on it so much; we use it for almost everything. The mathematical equations involved in this lab are converting from Calories to Joules. This lab is important so we are aware of how much energy we are consuming. Q1. 2000 Cal/day= 2000 kcal/day *1000 Cal/kCal*1 joule/ .24 Cal= 8,333,333 J/day Q2. 8.333* 10^6 J/day * 1 kj/1000 J= 8,333 KJ/ day Q3. Kwh/day= 323.3/ 23= 14 14 Wh/ day * 1000 wh/1 kwh* 1J / 1 w.s * 3600 sec/ 1 hr * 1KJ/ 1000J= 14 * 3600= 50400 KJ/ day Q4. 134 cf/ day * 1355000 J/ 1Cf * 1 kj/ 1000 j = 181570
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Unformatted text preview: Q5. 199.4+144.2+192.4+162.1+135.2+92.3+86.5+126.2+79.7+75.4= 1293.3/ 365= 3.5 gal/ day * 6.09*10^9 J/ 42 gal * 1kj / 1000 J = 6.09*10^9/42= 145000000 * 35= 507500000/1000=507500 Q6. 1 mile * 1 gallon / 25 miles * 6.09* 10^9 J/ 42 gallon= 5800000 J/day Q7. 6 miles * 1 gallon/ 25 miles * 6.09*10^9 J/ 42 gallon= 3.48*10^7 Q8. Usage Electric/fuel usage/day Energy used (Kj/day) Per Capita Food 2000 8333 2083.25 Electricity 14.1 50400 12600 Gas (hot water) 134.82 181570 45392.5 Gasoline 0.04 5800 0.04 Home Heating (oil) 3.5 507300 126875 Total 753603 186950. 8 My personal energy consumption is less than the national average per capita energy use for China, France, and USA. Q9. Gas...
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energy lab - Q5....

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