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Solutions for Principles of Sustainable Energy Systems, 3rd Edition Kutscher (All Chapters included)
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Complete Solutions Manual for Principles of Sustainable Energy Systems, 3rd Edition by Charles F. Kutscher; Jana B. Milford ; ISBN13: 9781498788922. (Full Chapters included Chapter 1 to 15)....Introduction to Sustainable Energy. Economics of Energy Generation and Conservation Systems. Energy Effici...

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  • March 17, 2024
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  • IAEE - Member of the International Association for Energy Economics
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Principles of Sustainable Energy Systems
3rd Edition by Charles Kutscher



Complete Chapter Solutions Manual
are included (Ch 1 to 15)




** Immediate Download
** Swift Response
** All Chapters included

,Chapter 1



1.1. The hallways of a 3-story building in Denver, Colorado use 600 lights per floor and each

light is an incandescent bulb rated at 60 W.

a). Estimate the amount of energy that could be saved in August by turning the lights on

when the sun sets and turning them off when it becomes light.

b). Assuming that the power for the lights comes from a 30% efficient coal-fired power

plant, estimate the amount of CO2 that would be saved with this conservation measure.

Assume that the chemical composition of the coal is CH0.8 and that coal has a heating value

of 29 MJ/kg.

c). Prepare a brief report, making recommendations for reasonable conservation measures.



Solution



a) To find the energy saved, one must first calculate the time during which the lights are

turned off. The daylight hours can be calculated by using data for August from

http://www.crh.noaa.gov/bou/?n=sunshine. The number of daylight hours in August is

approximately 425 hours. The energy saved is:



lights W 1kW
E  600  3 floors  60   425 hours  45,900 kWh
floor lights 1000W

MJ 1kWh kWh
b) Energy DensityCoal  29   0.3  2.42
kg 3.6MJ kg

, 1kg
mcoal  45,900kWh   18,967 kg
2.42kWh

The balanced equation for the reaction of coal with oxygen is:



CH0.8 + O2 → H0.8 + CO2



Molecular Weights:



kg
CH 0.8  12.8
kmol

kg
CO2  44
kmol




1 kmol CO2
According to the balanced equation, there is
1 kmol Coal



44kg CO2 1 ton
mCO2  18,967kg Coal   71.87 tons CO2
12.8 kg Coal 907.2 kg



c) Possible conservation measures could include:

a. Light sensors

b. Lower power light bulbs (30 W bulbs)

c. Less bulbs per fixture or less bulbs per floor



1.2. On May 27, 2009, U.S. Senator Lamar Alexander proposed to build 100 new nuclear

, power plants in 20 years “for a rebirth of industrial America while we figure out renewable

electricity.” In his talk, he stated “This would double America’s nuclear plants which today

produce 20% of all of our electricity and 70% of our pollution-free, carbon-free electricity.”

Analyze the proposal of the senator from several perspectives:

a. Cost of 100 nuclear power plants.

b. Need to replace existing nuclear power plants to generate net power output.

c. Amount of water required for the condensers of the new power plants.



Solution



a). From the information in the text provided by Lazard (Figure 1.29), the capital cost of a

nuclear plant is approximately $5.75/Watt. Assuming an average nuclear power plant size of

1000 MW, the capital cost of building 100 new nuclear power plants is:



$5.75
Cost  100 plants  1000 MW  $575 billion
Watt



b). According to Figure 1.13, there are currently 104 active plants in the United States. The

text states that approximately 30% of existing plants will need to be replaced.



Additional Plants  104 active plants  0.30  31 plants
$5.75
Cost of Additional Plants  31 plants  1000 MW  $178 billion
Watt

Total Capital Cost = $575 trillion + $178 trillion = $753 billion

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