3.130 A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200°C. The rod is in an air environment with T = 20°C and h = 30 . W/m² K. What is the temperature of the rod 25, 50, and 100 mm from the casting?
3.130 A brass rod 100 mm long and 5 mm in diameter extends horizontally from a casting at 200°C. The rod is in an air environment with T = 20°C and h = 30 . W/m² K. What is the temperature of the rod 25, 50, and 100 mm from the casting?
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.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.22P
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Question
![3.130 A brass rod 100 mm long and 5 mm in diameter
extends horizontally from a casting at 200°C. The rod
is in an air environment with T = 20°C and h = 30
W/m²K. What is the temperature of the rod 25, 50,
and 100 mm from the casting?
8](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe4d256a5-cbd6-4aee-ae86-020aabe91708%2F1691c0a9-4912-4a7e-9d0d-6cc244d22f84%2Ffdygqft_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3.130 A brass rod 100 mm long and 5 mm in diameter
extends horizontally from a casting at 200°C. The rod
is in an air environment with T = 20°C and h = 30
W/m²K. What is the temperature of the rod 25, 50,
and 100 mm from the casting?
8
Expert Solution
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Step 1
According to the question
L=100mm =0.1m
D=5mm=0.005m
Tb=200
h=30w/m2k
we need to find
Temperature of the rod at distance 25 mm and 50mm and 100 mm
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