Consider a 3-m-high rectangular enclosure consisting of two surfaces separated by an air gap (L)-0.5-m at 1 atm. The surface temperatures across the air gap are 12.5°C and 7.5°C. The properties of air at Ty= (T, + T-y2 = 10°C are k = 0.02439 W/m-K, v = 1.426 x 10-5 m2/s, Pr = 0.7336, and B = 1/T, = 3.534 × 10-3 K-1. 7.5°C 12.5°C Air 7.5°C 3 m Lm L m Air 12.5°C 3 m The Nusselt numbers for vertical orientation is

Elements Of Electromagnetics
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(L
Consider a 3-m-high rectangular enclosure consisting of two surfaces separated by an
air gap (L)=0.5-m at 1 atm. The surface temperatures across the air gap are 12.5°C and
7.5°C. The properties of air at Ty=(T,+ T-y2 = 10'C are k = 0.02439 W/m-K, v= 1.426 x
10-5 m2/s, Pr = 0.7336, and B = VT= 3.534 × 10-3 K-!.
7.5°C
12.5°C
Air
7.5°C
3 m
L m
L m
Air
12.5°C
3 m
The Nusselt numbers for vertical orientation is
1.1
Transcribed Image Text:Required Information (L Consider a 3-m-high rectangular enclosure consisting of two surfaces separated by an air gap (L)=0.5-m at 1 atm. The surface temperatures across the air gap are 12.5°C and 7.5°C. The properties of air at Ty=(T,+ T-y2 = 10'C are k = 0.02439 W/m-K, v= 1.426 x 10-5 m2/s, Pr = 0.7336, and B = VT= 3.534 × 10-3 K-!. 7.5°C 12.5°C Air 7.5°C 3 m L m L m Air 12.5°C 3 m The Nusselt numbers for vertical orientation is 1.1
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