determine the rate of heat transfer through the wall in Watts and the temperature at the inner and outer surfaces and at the interfaces. k = 0.20 W/m-°C for the 2.5 cm thick plaster wall on the inside k = 0.038 W/m-ºC for the 9.0 cm thick fiberglass insulation layer k = 0.12 W/m-°C for the 1.25 cm plywood layer on the outside. Assume: -the inside room air is 20 °C with convection coefficient of 10 W/m²- ºC, and - the outside air at -20 °C with convection coefficient of 20 W/m²-°C. Plaster Wall Insulation 12 2.5 cm 9 cm Plywood outside 34 k -1.25 cm
determine the rate of heat transfer through the wall in Watts and the temperature at the inner and outer surfaces and at the interfaces. k = 0.20 W/m-°C for the 2.5 cm thick plaster wall on the inside k = 0.038 W/m-ºC for the 9.0 cm thick fiberglass insulation layer k = 0.12 W/m-°C for the 1.25 cm plywood layer on the outside. Assume: -the inside room air is 20 °C with convection coefficient of 10 W/m²- ºC, and - the outside air at -20 °C with convection coefficient of 20 W/m²-°C. Plaster Wall Insulation 12 2.5 cm 9 cm Plywood outside 34 k -1.25 cm
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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.17P: The heat transfer rate from hot air by convection at 100C flowing over one side of a flat plate with...
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