_Energy Conservation Worksheet

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University of South Florida *

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2011L

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Electrical Engineering

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Apr 3, 2024

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Energy Conservation Worksheet Instructions: For this assignment, you will complete a personal energy audit, by calculating the amount of electricity you use in a year. Then, you will convert your energy use to the equivalent energy resources to determine your personal impact on energy resources and the environment. Lastly, you will calculate the financial costs of your energy use. Submit your worksheet to your instructor when completed. Pictures of work are at the bottom! Title: Krysta Vinacco, Ms.Stanek,5.06 Energy Conservation Worksheet Objective(s): you will complete a personal energy audit, by calculating the amount of electricity you use in a year. Then you will convert your energy use to the equivalent energy resources to determine your personal impact on energy resources and the environment. Lastly, you will calculate the financial costs of your energy use. Be sure to review the grading rubric before submitting the worksheet to your instructor Procedure: The materials and procedures are listed for you.

Materials: ● A calculator ● Appliance Energy Calculator at https://www.energy.gov/energysaver/save-electricity-and-fuel/appliances-and-electronics/estim ating-appliance-and-home Summary of Steps: 1. Using the Appliance Energy Calculator, determine the kilowatt-hour (kWh) of energy used per year of each appliance you use (or a family member uses on your behalf). The realistic expectation is at least 20 appliances you likely use within a year. 2. Place each appliance name and kilowatt-hour energy use per year in Table 1 in the data section. Add rows as needed. 3. Add all the energy values of all the appliance together. This is your total energy use for all appliances per year. Total Energy Use per year = 12,421 4. Calculate the % total energy of each appliance by taking its individual energy usage and dividing it by your total energy use for all appliances per year. Multiply that answer by 100. Place each % total in Table 1 . Example: 5. Convert your family’s yearly energy use to Btus using the conversion factors below: CONVERSION FACTORS 1 kwh (kilowatt hour) = 3,412 Btu 1 pound of bituminous coal = 12,000 Btu 1 barrel of oil = 5,800,000 Btu 1 cubic foot of natural gas = 1,028 Btu 1 gram uranium = 4 x 10 7 Btu Total Energy Use per year in Btu = 42,380,452 Calculate the amount of coal, natural gas, oil, and uranium required to meet your energy needs each year. Use the conversion factors above. Place these values in Table 2 .

6. Calculate how much each energy source will cost you per year of energy use. Use the conversion factors below. Place these values in Table 2 . CONVERSION FACTORS Coal costs about $25 per ton Oil costs about $90 per barrel Natural gas costs about $5 per 1000 cubic feet Uranium costs about 2 cents per gram Data Table 1 – Yearly Energy Use by Appliance Appliance Energy in Kilowatts % of Total ceiling fan cable box clothes dryer clothes washer 140.525 kWh 204.4 kWh 4073.4 kWh 372.3 kWh 1 2 33 0 coffee maker computer dishwasher electric air cleaner 400 kWh 225 kWh 173.58 kWh 438 kWh 3 2 1 6 garage opener hairdryer iron grass sprinkler 584 kWh 239.98 kWh 371.8 kWh 14.256 kWh 6 2 3 0 microwave printer rechargeable tool refrigerator 3517.5 kWh 13.052 kWh 10.66 kWh 164.25 kWh 28 0 0 1 television toaster vacuum video games 219.73 kWh 778.8 kWh 214.632 kWh 21.384 kWh 2 6 2 0

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Table 2 – Energy Source Amounts and Costs Per Year Energy Source Amount Needed Total Cost Coal Pounds needed: 3532 $88,300 Natural Gas Cubic feet needed: 41226 $20 Oil Barrels needed: 7 $630 Uranium Grams needed:105,951,130xc $529756 Graph Using the graphing tools of your document, create one pie chart that shows the percentage each appliance contributes to the total percentage of yearly energy use. (To make the categories easier to see in your pie chart, group appliances together by type, such as heating and cooling or computer/electronics.) Reflection Questions Answer the reflection questions, using what you have learned from the lesson and your data. It will be helpful to refer to your class notes. Answer questions in complete sentences. Compare your yearly energy use pie chart to the pie chart of home energy use presented in the lesson. Explain the differences or similarities between the charts. Some of the differences that is shown is that there are more appliances being made and used today then back then. Also, there some similarities like having one main applicence take over the majority of the pie chart.

Explain why the cheapest fuel is not the best choice for the environment. The cheapest fuel is not good, because it can end up polluting the environment which can hurt the animals and plants inside the environment. Describe five methods from the lesson that could reduce your energy usage. hutdown your computer. Computers are some of the biggest energy users in oﬃce buildings . ... Choose the right light. LED bulbs are the most energy eﬃcient lighting option . ... Eliminate vampire power: unplug idle electronics . ... Use a power strip to reduce your plug load . ... Turn off the lights. Conclusion Include a conclusion that is detailed in terms of accurately describing the lab and any conclusions drawn supported by data. Generally, this section will include a summary and interpretation of the lab results. Any experimental errors should also be reported and analyzed. Also, discuss what things you can do to investigate or apply these concepts further. For this assignment I completed a personal energy appliance chart, by calculating the amount of electricity you use in a year. Then I convert the energy used to the equivalent energy resources to determine your personal impact on energy resources and the environment. Lastly, I calculate the financial costs of your energy use. Some errors I tended to mess up on was mulktiplying and dividing things because there was so many and different things to do at first I got confused and messed up, but then got the hang of it

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