A wall of length "L" m and height "H" m is made from a thick bricklayer of 29 cm with thermal conductivity of 0.5 W/mK is subjected to heat transfer due to the outside temperature as 43 oC and inside temperature 28 oC. If the energy loss is 11427 kJ in 9 hours. Determine the Heat transfer rate, Surface Area and Length and Height of the wall, if L = 1.5 H. Solution: i) Heat Transfer Rate (in Joule/Sec) = ii) Surface Area of the Wall (in m2) = iii) Height of the Wall (H in m) = iv) Length of the Wall (L in m) =

A wall of length "L" m and height "H" m is made from a thick bricklayer of 29 cm with thermal conductivity of 0.5 W/mK is subjected to heat transfer due to the outside temperature as 43 oC and inside temperature 28 oC. If the energy loss is 11427 kJ in 9 hours. Determine the Heat transfer rate, Surface Area and Length and Height of the wall, if L = 1.5 H. Solution: i) Heat Transfer Rate (in Joule/Sec) = ii) Surface Area of the Wall (in m2) = iii) Height of the Wall (H in m) = iv) Length of the Wall (L in m) =

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.

Chapter2: Steady Heat Conduction

Section: Chapter Questions

Problem 2.4P: A plane wall 15 cm thick has a thermal conductivity given by the relation k=2.0+0.0005T[W/mK] where...

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Question

A wall of length "L" m and height "H" m is made from a thick bricklayer of 29 cm with thermal conductivity of 0.5 W/mK is subjected to heat transfer due to the outside temperature as 43 ^oC and inside temperature 28 ^oC. If the energy loss is 11427 kJ in 9 hours.

Determine the Heat transfer rate, Surface Area and Length and Height of the wall, if L = 1.5 H.

Solution:

i) Heat Transfer Rate (in Joule/Sec) =

ii) Surface Area of the Wall (in m²) =

iii) Height of the Wall (H in m) =

iv) Length of the Wall (L in m) =

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