Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
5th Edition
ISBN: 9781305084766
Author: Saeed Moaveni
Publisher: Cengage Learning
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Chapter 18, Problem 40P
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Estimate the amount of electricity to be generated from renewable and other sources in 2017.

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1) Heating the water in a 55-gallon water heater requires about 2.0 x 103 kJ of energy.          a) Assume the energy came from natural gas with 80% efficiency; how many grams of natural gas are required?          b) Assume the energy came from electricity with 80% efficiency and that the electricity was produced from the combustion of coal with 30% efficiency; how many grams of coal are required?   For problem above, calculate how much CO2 in grams is emitted to the atmosphere.             For a: Use the balanced equation for the combustion of methane (CH4) to determine how many grams of CO2are produced from the amount of natural gas required.             For b: Assume that coal produces 5.25 kJ of energy per gram of CO2 produced. Calculate how much CO2 in grams is produced.
A typical household of four people consume approximately 300 liters of water per day. Express the annual consumption rate of a city with a population of 100,000 people. Express your answer in liters per year and m3 per year.
Q2 A dam is used to store 700 tons of water to provide energy when needed by using turbines. If the water is stored at a height of 60 meters above ground level, calculate how much energy is stored if the water was to be released to ground level. Provide and analyse two alternative methods of energy storage.

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Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

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