Question

The surface area of concentrator type solar heater is 5m². It can reflect 80% of solar radiation incident while it absorbs the rest. Calculate energy concentrated by heaters as it focus in 2 hours if solar energy was delivered to it at the rate of 0.4 kJ/m²s.

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Answer 1

Answer:

It reflects 80 % of the radiation incident on it. Calculate the enegry concentrated by the heater in 1 hour if the solar energy were delivered to it at the rate of 0.66 kW//m^2. Energy concentrated =(80/100)(0.66kW/m2)(5m2)(1×60×60s)=9504kJ.