"Two-by-four" wood studs have actual dimensions of 4. 13 x 9.21 cm and a thermal conductivity of 0.1 W/m. °C. A typical wall for a house is constructed as shown below. Calculate: a) heat transfer rate through the wall, b) temperature of inside wall, outside wall, and insulation material; and (c) temperature drop across common brick. Disregard any contact resistances at interfaces. Outside air convection, h = 15 W/m.C Common brick, k= 0.69 8 cm 1.9 cm, k= 0.96 Gypsum sheath 19 cm, k= 0.48 -40.6 cm - -Insulation, k = 0.04 - 2x 4 studs Inside air convection, h = 7.5 W/m• 'C
"Two-by-four" wood studs have actual dimensions of 4. 13 x 9.21 cm and a thermal conductivity of 0.1 W/m. °C. A typical wall for a house is constructed as shown below. Calculate: a) heat transfer rate through the wall, b) temperature of inside wall, outside wall, and insulation material; and (c) temperature drop across common brick. Disregard any contact resistances at interfaces. Outside air convection, h = 15 W/m.C Common brick, k= 0.69 8 cm 1.9 cm, k= 0.96 Gypsum sheath 19 cm, k= 0.48 -40.6 cm - -Insulation, k = 0.04 - 2x 4 studs Inside air convection, h = 7.5 W/m• '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.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.10P: 1.10 A heat flux meter at the outer (cold) wall of a concrete building indicates that the heat loss...
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