Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Chapter 10, Problem 30E
Interpretation Introduction
Interpretation:
The surface area of the PV cells is to be calculated and whether the given array would meet the peak power demands and fit on a rooftop or not is to be explained.
Concept Introduction:
Power input on a PV cell is the total active area of the PV cell multiplied by the solar power.
The percent of the input power that is converted into the output power by a PV cell is called its efficiency.
Percent efficiency of a PV cell is 100 multiplied by the ratio of power out and power in.
The expression is as follows:
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In 2008 the approximate energy consumption for the entire population of earth for an entire year was 4.74x10^20 joules. The sun's energy striking the earth is orders of magnitude greater than this...taking the whole surface aea of the earth for an entire year, there is approximately 1.33x 10^16 joules/miles striking the earth's surface per year. if a solar panel was 100% efficient, approximately how big would the surface area (with units of a mile) of the solar panel have to be to meet the energy needs of the people living on earth?
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Assume that the solar energy collectors can only convert 10 % of the available sunlight into useful power.
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Chapter 10 Solutions
Chemistry In Focus
Ch. 10 - Prob. 10.1YTCh. 10 - Prob. 10.2YTCh. 10 - Prob. 1SCCh. 10 - Prob. 1ECh. 10 - Explain why hydroelectric power and wind power are...Ch. 10 - Prob. 3ECh. 10 - Prob. 4ECh. 10 - Prob. 5ECh. 10 - Prob. 6ECh. 10 - Prob. 7E
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