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A brick wall 25cm thick, initially at 80°C has a medium at 15°C suddenly placed in...

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Mechanical Engineering

A brick wall 25cm thick, initially at 80°C has a medium at 15°Csuddenly placed in conatct with both of its surfaces through a heattransfer coefficient of 90W/m2°C. Find the temperature at a point2.5cm from the surafce after 10hrs have elapsed. Find also the heatthat has flowed out of the wall during that time. Take ρ =1602kg/m3, cp = 0.84kJ/kg°C, k = 0.69W/m°C,and α =5.2×10-7m2/s.

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3.7 Ratings (305 Votes)
The temperature at 25 cm away from the wall can be determinedusing    See Answer
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