A fluid flowing through a tube 20ft long and of 0.62 inch inside diameter has the following has the following physical properties: specific heat = 0.65 BTU/lb degF thermal conductivity = 0.085 BTU/ hr ft degF uw = viscosity at 122 degF (tube surface temp) = 4.0 lb/ft hr ub = viscosity at 212 degF (bulk fluid temp)= 1.95 lb/ ft hr 1. What is the Reynolds number if the flowrate is 2000 lb/hr? a. 24500 b. 22800 c. 27200 d. 25300
A fluid flowing through a tube 20ft long and of 0.62 inch inside diameter has the following has the following physical properties: specific heat = 0.65 BTU/lb degF thermal conductivity = 0.085 BTU/ hr ft degF uw = viscosity at 122 degF (tube surface temp) = 4.0 lb/ft hr ub = viscosity at 212 degF (bulk fluid temp)= 1.95 lb/ ft hr 1. What is the Reynolds number if the flowrate is 2000 lb/hr? a. 24500 b. 22800 c. 27200 d. 25300
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.
Chapter3: Transient Heat Conduction
Section: Chapter Questions
Problem 3.9P: 3.9 The heat transfer coefficients for the flow of 26.6°C air over a sphere of 1.25 cm in diameter...
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A fluid flowing through a tube 20ft long and of 0.62 inch inside diameter has the following has the following physical properties:
specific heat = 0.65 BTU/lb degF
thermal conductivity = 0.085 BTU/ hr ft degF
uw = viscosity at 122 degF (tube surface temp) = 4.0 lb/ft hr
ub = viscosity at 212 degF (bulk fluid temp)= 1.95 lb/ ft hr
1. What is the Reynolds number if the flowrate is 2000 lb/hr?
a. 24500
b. 22800
c. 27200
d. 25300
2. What is the heat transfer coefficient (Btu/hr-ft^2-K) if the flowrate is 2000 lb/hr?
a. 280
b. 208
c. 203
d. 282
3. If the flowrate is reduced to 100 lb/h, What would be the heat transfer coefficient (Btu/hr-ft^2-K)?
a. 9
b. 10
c. 11
d. 12
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