Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Question
Chapter 9, Problem 3P
To determine
Find the annual production of energy for the installation of photovoltaic panels.
Find the coal requirement for replacing photovoltaic panels by thermal plant.
Find the annual reduction of
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The annual average insolation for a fixed solar panel in
city A is 350 W/m2. On the other hand, city B has a figure
of 300 W/m?. For both locations, the solar panel has the
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d. Determine the price per square meter of solar panel in
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In a refrigeration cycle that is used to cool products of a grocery store has
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1304 Kw
O 1.30 Kw
600 kW
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Q1: What is the primary process of converting solar energy
into other form of energy,
explain and give an example of each one of them?
Q2: Determine the Sun's altitude angle , azimuth angle, and
zenith angle at 5.00 P.M on
December 15, 2017 for a location at 24.85° N latitude.
Q3: Compare the power generated by the two shown systems
1 and 2, if each turbine have
air velocity in that area was V= 5 m/sec and the air density
p=1.19 kg/m³m while in system 2 to increase the air velocity
we uses a truncated cone of area ration A1/A2=4.
blades 5 m length, while the
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- When 1 cu ft of natural gas is burned, 1,050 Btu of heat are produced. In oneday, a building uses 761,250 Btu of heat. How many cubic feet of gas areburned?arrow_forwardA 2 x 2 m flat plate solar collector for domestic hot water heating is shown in the figure. The incident solar radiation on the glass cover, which transmits 90% of the incident flux, is 750 W/m2. Water flows through the tubes soldered to the backside of the absorber plate, entering at a temperature of 25°C. The temperature of the glass cover is 27°C, and it radiates heat with an emissivity of 0.92 to the sky at –50°C. Additionally, the glass cover losses heat by convection to air at 20°C flowing over its surface at 30 km/h. Assume that the radiation heat transfer between the absorber plate and glass cover and the heat transfer through the back and sides of the collector is negligible.arrow_forwardOn a summer day, the mean solar irradiance received at a lake was 500 W/m^ 2 over 25 days (consider the day length to be 8 hours). If 80% of the energy is used to vaporize water, how large could the depth of evaporation be?arrow_forward
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