Please calculate the heat transfer rate (Btu/hr) from a horizontal pipe flow of water at 120 F placed in ambient air at 70 F. The heat transfer coefficient from natural convection on the outside surface is 0.65 Btu/hr-ft²-F. The heat transfer coefficient from forced convection due to the internal turbulent flow is 399 Btu/hr-ft2-F. The pipe material is steel, and the outside diameter is 34 mm with a wall thickness of 2 mm. The pipe is 2 ft long.
Please calculate the heat transfer rate (Btu/hr) from a horizontal pipe flow of water at 120 F placed in ambient air at 70 F. The heat transfer coefficient from natural convection on the outside surface is 0.65 Btu/hr-ft²-F. The heat transfer coefficient from forced convection due to the internal turbulent flow is 399 Btu/hr-ft2-F. The pipe material is steel, and the outside diameter is 34 mm with a wall thickness of 2 mm. The pipe is 2 ft long.
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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Heat transfer
Transcribed Image Text:Please calculate the heat transfer rate (Btu/hr) from a horizontal pipe flow of water at 120 F
placed in ambient air at 70 F. The heat transfer coefficient from natural convection on the
outside surface is 0.65 Btu/hr-ft2-F. The heat transfer coefficient from forced convection due to
the internal turbulent flow is 399 Btu/hr-ft²-F. The pipe material is steel, and the outside
diameter is 34 mm with a wall thickness of 2 mm. The pipe is 2 ft long.
Expert Solution
Step 1
Given
Temperature, T1 = 120oF
T2 = 70oF
Heat transfer coefficient, h1 = 0.65 Btu/hr.ft2.F
h2 = 399 Btu/hr.ft2.F
Length, L = 2 ft
Diameter, d = 34 mm
Thickness, t = 2 mm = 0.006 ft
Find
Heat transfer rate, Q
Step by step
Solved in 2 steps with 1 images
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