Determine the free convection heat transfer

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Reference no: EM13946155

1. The plate described in Problem 9.14 has been used in an  experiment  to  determine  the  free  convection  heat transfer  coefficient.  At  an  instant  of  time  when  the plate temperature was 127°C, the time rate of change of  this  temperature  was  observed  to  be  -0.0465 K/s. What is the corresponding free convection heat trans- fer  coefficient?  Compare  this  result  with  an  estimate based on a standard empirical correlation.

2. Determine the average convection heat transfer coeffi- cient for the 2.5-m-high vertical walls of a home having respective interior air and wall surface temperatures of (a)  20 and 10°C and (b) 27 and 37°C.

Reference no: EM13946155

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