Q2/ A thermopane window consists of two pieces of glass 7 mm thick that enclose an air space 7mm thick. The window separates room air at 20°C from outside ambient air at -10°C. Theconvection coefficient associated with the inner (room-side) surface is 10 W/m? K.If the convection coeficient associated with the outer (ambient) air is 80 W/m? K, what isthe heat loss through a window that is 0.8 m long by 0.5 m wide? Neglect radiation,[ kglass = 1.4W/m-K: kair-0.024S W/m-K ]Window, 0.8 m x 0.5 mGlass7+7+7-1Air!Toi= 20 °Ch; = 10 W/m2 KAir11 L=0.007 mTo = -10 °Cho = 80 W/m2-KAir

T∞i=20°C ,hi=10 Wm2-KKG=1.4 Wm-K, Kair=.0245 WmKh0=80 Wm2K,T∞0=-10°CL=L1=L2=L3=.007 m and A=.8×.5…

Q2/ A thermopane window consists of two pieces of glass 7 mm thick that enclose an air space 7 mm thick. The window separates room air at 20°C from outside ambient air at -10°C. The convection coefficient associated with the inner (room-side) surface is 10 W/m? K. If the convection coefficient associated with the outer (ambient) air is 80 W/m? K, what is the heat loss through a window that is 0.8 m long by 0.5 m wide? Neglect radiation,f kglass- 1.4 W/m-K: kair -0.024s W/m-K] -Window, 0.8 m x 0.5 m Glass AirII Tm=20 °C hi= 10 Wim2 K Air11 L=0.007 m To-10 °C 80 W/m2-K Air ho

Q2/ A thermopane window consists of two pieces of glass 7 mm thick that enclose an air space 7 mm thick. The window separates room air at 20°C from outside ambient air at -10°C. The convection coefficient associated with the inner (room-side) surface is 10 W/m? K. If the convection coefficient associated with the outer (ambient) air is 80 W/m? K, what is the heat loss through a window that is 0.8 m long by 0.5 m wide? Neglect radiation,f kglass- 1.4 W/m-K: kair -0.024s W/m-K] -Window, 0.8 m x 0.5 m Glass AirII Tm=20 °C hi= 10 Wim2 K Air11 L=0.007 m To-10 °C 80 W/m2-K Air ho

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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