Question
As part of their heat transfer project Lucy, Diana and Pablo have decided to design the best thermal mug on the market. For this they
As part of their heat transfer project Lucy, Diana and Pablo have decided to design the best thermal mug on the market. For this they decided that their cup will have a height of 30 cm and a total volume of 1 liter. The internal part of the cup will be made of aluminum and in order to make your project sustainable it will have a cover of 1 centimeter of sawdust to prevent heat loss. Finally, it will have a 0.5 cm aluminum cover to make the design more aesthetic. Considering that the convection coefficient for the inner surface of the bowl is estimated at hi= 950 btu/h ft2 F, and the convection coefficient on the outside of the liner is estimated at ho = 13btu/h ft2 F. Calculate the heat loss in this cup considering coffee was placed at 95 C and the room temperature is 30 C.
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