Hand Sanitizer (70% propanol gel) needs to be transported on a floor in a hospital from a central location per floor. The room farthest from the source is 17.5-m away. The hand sanitizer enters the tubing at 20°C and 275 kPa absolute and exits the tubing at atmospheric conditions. The tubing can Flowrate/velocity Calculation. Hand sanitizer be considered smooth; however, there are two (2) 90° curved elbows and four (4) Tee Run throughs, and one (1) foot value (Refer to the Loss for Fittings table in Canvas). The density of the hand sanitizer is 955 kg/m3 and the viscosity is 4.5 cP.   What is the flow rate that can be obtained if the tubing diameter is 4.5-mm?

Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN:9781305494695
Author:Larry Jeffus
Publisher:Larry Jeffus
Chapter20: Shop Math And Weld Cost
Section: Chapter Questions
Problem 24R: What is a dimensioning tolerance?
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Hand Sanitizer (70% propanol gel) needs to be transported on a floor in a hospital from a central location per floor. The room farthest from the source is 17.5-m away. The hand sanitizer enters the tubing at 20°C and 275 kPa absolute and exits the tubing at atmospheric conditions. The tubing can Flowrate/velocity Calculation. Hand sanitizer be considered smooth; however, there are two (2) 90° curved elbows and four (4) Tee Run throughs, and one (1) foot value (Refer to the Loss for Fittings table in Canvas). The density of the hand sanitizer is 955 kg/m3 and the viscosity is 4.5 cP.

 

What is the flow rate that can be obtained if the tubing diameter is 4.5-mm?

K-values. Below is table of typical K-values for various fitting types.
Fitting
Турes
K
Standard (R/D = 1)
0.35
45° Elbow
Long Radius (R/D = 1.5)
0.2
Standard (R/D = 1)
0.75
90° Elbow Curved
Long Radius (R/D = 1.5)
0.45
90° Elbow Square or Mitred
1.3
180° Bend
Close Return
1.5
Tee, Run Through
Branch Blanked
0.4
Tee, as Elbow
Entering in run
Tee, as Elbow
Entering in branch
1
Tee, Branching Flow
Coupling
0.04
Union
0.04
Gate valve
Fully Open
0.17
3/4 Open
0.9
Transcribed Image Text:K-values. Below is table of typical K-values for various fitting types. Fitting Турes K Standard (R/D = 1) 0.35 45° Elbow Long Radius (R/D = 1.5) 0.2 Standard (R/D = 1) 0.75 90° Elbow Curved Long Radius (R/D = 1.5) 0.45 90° Elbow Square or Mitred 1.3 180° Bend Close Return 1.5 Tee, Run Through Branch Blanked 0.4 Tee, as Elbow Entering in run Tee, as Elbow Entering in branch 1 Tee, Branching Flow Coupling 0.04 Union 0.04 Gate valve Fully Open 0.17 3/4 Open 0.9
e = 20°
1.56
40°
17.3
%3!
e = 60°
206
e = 5°
0.24
e = 10°
0.52
Butterfly valve
e = 20°
1.54
e = 40°
10.8
e = 60°
118
Swing
Check valve
Disk
10
Ball
70
Foot valve
15
Disk
7
Piston
15
Water meter
Rotary (star-shaped disk)
10
Turbine-wheel
6.
Transcribed Image Text:e = 20° 1.56 40° 17.3 %3! e = 60° 206 e = 5° 0.24 e = 10° 0.52 Butterfly valve e = 20° 1.54 e = 40° 10.8 e = 60° 118 Swing Check valve Disk 10 Ball 70 Foot valve 15 Disk 7 Piston 15 Water meter Rotary (star-shaped disk) 10 Turbine-wheel 6.
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