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John asked in Science & MathematicsPhysics · 1 month ago

Determine the required thickness of the insulation.?

A 50 cm diameter spherical tank is filled with iced water at 0°C The tank is thin shelled and its temperature can be the same as the ice temperature. the tank is exposed to ambient air at 20°C with a heat transfer coefficient of 12 W/m^2*°C. The tank is to be covered with glass wool insulation (k=0.05 W/m*°C) to decrease the heat gain to the iced water by 90 percent.

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  • Anonymous
    1 month ago

    2 m should do it.          

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