ind the rotation velocity of lead screw n and the velocity of liquid in syringe needle if the equired injection dose is 1. 10 cm³ in 3 hours (continuous injection)

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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Experiment Data
Take the following data for the syringe injection pump
Q/
Inner diameter of syringe barrel: D = 1.5 cm
Inner diameter of the needle shaft of the syringe: d = 0.5 mm
The thread pitch of lead screw: pt = 0.75 mm
Lead screw rotation velocity (rpm): n
Calculations a
Liquid injection rate (cm³/hr) Q = pt*n* 60 * π * D²/4
Velocity of liquid in syringe barrel (cm/min) v₂ = 40/ (60** D²)
Velocity of liquid in syringe needle (cm/min) v₁ = 40/ (60**d²)
K
6-
Find the rotation velocity of lead screw n and the velocity of liquid in syringe needle if the
required injection dose is
1. 10 cm³ in 3 hours
(continuous injection)
2. 20 cm³ in 12 hours
(discontinuous injection, 5 cm³ each 3 hour, injection time = 1
min).
Discus the reci
Solution
Calculate the liquid injection rate
Q = P₁ xnx60xD²
= 0.075xnx60××1.5²
= 7.94n-
cm²
hr
Calculate the velocity of liquid in barrel
V₂ ==
40
60xπx D²
4x7.94n
60xx1.5²
= 0.07ncm
hr
Calculate the velocity of liquid in needle
40
60xπxd²
4x7.94n
60xπx 0.05²
hr
=67n
Hello professor,
please solve the last
branch, the first
branches, the solution
exists, solve the last
branch
Transcribed Image Text:Experiment Data Take the following data for the syringe injection pump Q/ Inner diameter of syringe barrel: D = 1.5 cm Inner diameter of the needle shaft of the syringe: d = 0.5 mm The thread pitch of lead screw: pt = 0.75 mm Lead screw rotation velocity (rpm): n Calculations a Liquid injection rate (cm³/hr) Q = pt*n* 60 * π * D²/4 Velocity of liquid in syringe barrel (cm/min) v₂ = 40/ (60** D²) Velocity of liquid in syringe needle (cm/min) v₁ = 40/ (60**d²) K 6- Find the rotation velocity of lead screw n and the velocity of liquid in syringe needle if the required injection dose is 1. 10 cm³ in 3 hours (continuous injection) 2. 20 cm³ in 12 hours (discontinuous injection, 5 cm³ each 3 hour, injection time = 1 min). Discus the reci Solution Calculate the liquid injection rate Q = P₁ xnx60xD² = 0.075xnx60××1.5² = 7.94n- cm² hr Calculate the velocity of liquid in barrel V₂ == 40 60xπx D² 4x7.94n 60xx1.5² = 0.07ncm hr Calculate the velocity of liquid in needle 40 60xπxd² 4x7.94n 60xπx 0.05² hr =67n Hello professor, please solve the last branch, the first branches, the solution exists, solve the last branch
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