The water in an electric heater is maintained at 60 C. The tank is made of...

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The water in an electric heater is maintained at 60 °C. The tank is made of 6-mm thick type 316 stainless steel cylinder with 12-mm thick stainless steel end-plates. The inside dimensions of the tank are 60-cm diameter and 100-cm height. T=15° h = 8 W/m² 60 1 0,6 d₂=0.612h 30.712 100 cm -6 mm 12 mm W The tank is covered with 5-cm thick fiberglass insulation. The surrounding air is at 15 °C with a surface heat transfer coefficient of 8 Assuming the inner surface of the tank to be at 60 °C, estimate the electrical m²°C* energy required during a 12-h period when no water is drawn from the boiler. The water in an electric heater is maintained at 60 °C. The tank is made of 6-mm thick type 316 stainless steel cylinder with 12-mm thick stainless steel end-plates. The inside dimensions of the tank are 60-cm diameter and 100-cm height. T=15° h = 8 W/m² 60 1 0,6 d₂=0.612h 30.712 100 cm -6 mm 12 mm W The tank is covered with 5-cm thick fiberglass insulation. The surrounding air is at 15 °C with a surface heat transfer coefficient of 8 Assuming the inner surface of the tank to be at 60 °C, estimate the electrical m²°C* energy required during a 12-h period when no water is drawn from the boiler.