3. Consider a 3 m high rectangular enclosure consisting of two surfaces separated by a 0.1 m air gap at 1 atm. If the surface temperatures across the air gap are 30 °C and -10 °C, determine the ratio of the heat transfer rate for the horizontal orientation (with hotter surface at the bottom) to that for vertical orientation. [1.66] 0.1 m 3 m Air -10 -10°C 30°C
3. Consider a 3 m high rectangular enclosure consisting of two surfaces separated by a 0.1 m air gap at 1 atm. If the surface temperatures across the air gap are 30 °C and -10 °C, determine the ratio of the heat transfer rate for the horizontal orientation (with hotter surface at the bottom) to that for vertical orientation. [1.66] 0.1 m 3 m Air -10 -10°C 30°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.
Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.13P
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Question
![3. Consider a 3 m high rectangular enclosure consisting of two
surfaces separated by a 0.1 m air gap at 1 atm. If the surface
temperatures across the air gap are 30 °C and -10 °C,
determine the ratio of the heat transfer rate for the
horizontal orientation (with hotter surface at the bottom)
to that for vertical orientation. [1.66]
0.1 m
3 m
Air
-10°C
-10°C
30°C
Air
30°℃
<-0.1m->>
3m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4000e28a-5cf8-47ab-bb9c-d9b564c038d2%2F2cf3a742-234c-42f1-9873-35f5d34cec74%2F35n3yja_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. Consider a 3 m high rectangular enclosure consisting of two
surfaces separated by a 0.1 m air gap at 1 atm. If the surface
temperatures across the air gap are 30 °C and -10 °C,
determine the ratio of the heat transfer rate for the
horizontal orientation (with hotter surface at the bottom)
to that for vertical orientation. [1.66]
0.1 m
3 m
Air
-10°C
-10°C
30°C
Air
30°℃
<-0.1m->>
3m
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