In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes, this water is pumped into a holding tank. Assume that the efficiency of the overally system is 25% ( that is, 80% of the incident solar energy is lost from the system ). What collector area is necessary to raise the temperature of 200L of water in the tank from 20^(@)C to 40^(@) in 1.0 h when the intensity of incident sunlight is 750W// m^(2) ?

In a solar water heater, energy from the Sun is gathered by water that

1.	In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes, this water is pumped into a holding tank. Assume that the efficiency of the overally system is 25% ( that is, 80% of the incident solar energy is lost from the system ). What collector area is necessary to raise the temperature of 200L of water in the tank from 20^(@)C to 40^(@) in 1.0 h when the intensity of incident sunlight is 750W// m^(2) ?
Answer» ANSWER :`25M^(2)`

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