PC are:- E, = 140J/kg K pr = 0.0248
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.
Chapter6: Forced Convection Over Exterior Surfaces
Section: Chapter Questions
Problem 6.15P
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Question
![Liquid mercury flows at 1.6kg/s through copper tube of 20mm diameter. The mercury enters
tube at 15°C leaves at 35°C. For liquid metal flowing through tube following correction may
be used.
Nu, = 7+0.025(Pe); where Pe- Peclet No.
Properties of mercury at 25°C are:-
p= 13582 kg/m C, =140J/kg K, k= 8.69 W/mK
v = 1.5x10-" m²/s ;pr = 0.0248
The tube length of constant heat flux at wall which is maintained at an average temp. of 50°C
is
_meters.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcea85b98-c58e-484c-bfd9-0c598c65ee5e%2F8eac7799-99a6-4ac9-b421-f6828b72686d%2Fj1d7rz8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Liquid mercury flows at 1.6kg/s through copper tube of 20mm diameter. The mercury enters
tube at 15°C leaves at 35°C. For liquid metal flowing through tube following correction may
be used.
Nu, = 7+0.025(Pe); where Pe- Peclet No.
Properties of mercury at 25°C are:-
p= 13582 kg/m C, =140J/kg K, k= 8.69 W/mK
v = 1.5x10-" m²/s ;pr = 0.0248
The tube length of constant heat flux at wall which is maintained at an average temp. of 50°C
is
_meters.
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