Question 12 [5 Mark] A 10-cm-wide and 15-cm-high vertical hot surface in 25 °C air is to be cooled by a heat sink with equally spaced fins of rectangular profile. The fins are 1 mm thick and 15 cm long in the vertical direction and have a height of 25 mm from the base. Draw the neat figure of the setup and determine the optimum fin spacing and the rate of heat transfer by convection from the heat sink if the base temperature is 90 °C.

Question 12 [5 Mark] A 10-cm-wide and 15-cm-high vertical hot surface in 25 °C air is to be cooled by a heat sink with equally spaced fins of rectangular profile. The fins are 1 mm thick and 15 cm long in the vertical direction and have a height of 25 mm from the base. Draw the neat figure of the setup and determine the optimum fin spacing and the rate of heat transfer by convection from the heat sink if the base temperature is 90 °C.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.63P

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