Hot fluid "C,= 2562 J/kg.k, Pr 51.3, µ = 5.22E-3 Pa.s,k 0.260 W/m.K" flows at 0.9 kg/min inside a 3-mm diameter, thin- walled tube. The tube is coiled and %3D submerged in a water bath maintained at 23°C. The fluid experiences a temperature drop of 65°C and leaves the tube at 35°C. What is the required length of the tube "m"? Neglect heat transfer · enhancement associated with the coiling. Assume fully developed flow, if turbulent flow use Dittus, Boelter equation: Nu = 0.023 Re Pr %3D

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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= 2562 J/kg.k, Pr 51.3, µ =
5.22E-3 Pa.s, k 0.260 W/m.K" flows at 0.9
kg/min inside a 3-mm diameter, thin-
walled tube. The tube is coiled and
Hot fluid
%3D
%3D
%3D
00
submerged in a water bath maintained at
23°C. The fluid experiences a temperature
drop of 65°C and leaves the tube at
35°C. What is the required length of the
tube "m"? Neglect heat transfer ·
enhancement associated with the
coiling. Assume fully developed flow, if
turbulent flow use Dittus, Boelter
equation: Nu = 0.023 Re
71
Pr.
Select one:
A. 18.40
B. 20.07
C. 21.98
D. 23.90
O E. 25.33
S PAGE
NEXT PAGE
nation
Transcribed Image Text:= 2562 J/kg.k, Pr 51.3, µ = 5.22E-3 Pa.s, k 0.260 W/m.K" flows at 0.9 kg/min inside a 3-mm diameter, thin- walled tube. The tube is coiled and Hot fluid %3D %3D %3D 00 submerged in a water bath maintained at 23°C. The fluid experiences a temperature drop of 65°C and leaves the tube at 35°C. What is the required length of the tube "m"? Neglect heat transfer · enhancement associated with the coiling. Assume fully developed flow, if turbulent flow use Dittus, Boelter equation: Nu = 0.023 Re 71 Pr. Select one: A. 18.40 B. 20.07 C. 21.98 D. 23.90 O E. 25.33 S PAGE NEXT PAGE nation
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