An electric room heater has been designed in the shape of a vertical cylinder 2 m tall and 30 cm in diameter. For safety, the heater surface cannot exceed 35?C. If the room air is 20?C, find the power rating of the heater in watts.GIVENAn electric heater in the shape of a vertical cylinderHeater height (H) = 2 mHeater diameter (D) = 30 cm = 0.3 mRoom air temperature (T??) = 20?C = 293 KASSUMPTIONSRadiation is negligibleHeat transfer from the top and bottom of the tank isnegligible

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D= 0,3 m T= 35°C (max) Alr H=2 m T.- 20°C