12. The inner and outer glasses of a 2m x 2m double window are at 18 C and 6 C, respectively. If the 1 cm spac between the two glasses is filled with still air, determine the rate of heat transfer through the air layer by conduction, in pane kW.

12. The inner and outer glasses of a 2m x 2m double window are at 18 C and 6 C, respectively. If the 1 cm spac between the two glasses is filled with still air, determine the rate of heat transfer through the air layer by conduction, in pane kW.

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.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.39P

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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

Question

12.
The inner and outer glasses of a 2m x 2m double
window are at 18 C and 6 C, respectively. If the 1 cm spac
between the two glasses is filled with still air, determine the
rate of heat transfer through the air layer by conduction, in
pane
kW.

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