A particular 1.5 m2 photovoltaic panel operating in direct
Chapter 15, Problem 6SL(choose chapter or problem)
Problem 6SL
A particular 1.5 m2 photovoltaic panel operating in direct sunlight produces electricity at 20% efficiency. The resulting electricity is used to operate an electric stove that can be used to heat water. A second system uses a 1.5 m2 curved mirror to concentrate the Sun’s energy directly onto a container of water. Estimate how long it takes each system to heat 1.0 kg of water from 25°C to 95°C. (See also Chapter 14.)
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