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
Energy concentrated =(80/100)(0.66kW/m2)(5m2)(1×60×60s)=9504kJ
