16 Questions
Which type of flow rate measurement is important for maintaining the quality of industrial processes?
Volumetric or mass flow rate
What is the purpose of accurate measurement of flow rate in industrial processes?
To control the quality of industrial processes
What is the principle under which Venturi meters operate?
Conversion of pressure head to velocity head when the cross-sectional area decreases
What is the primary objective of using a Venturi meter?
Measuring the rate of flow of a fluid flowing through a pipe
Why is accurate measurement of flow rate very important in industrial processes?
To achieve the control objective of industrial control loops
What is the main purpose of flow measurement?
Quantification of bulk fluid movement
What is the purpose of a Venturi meter?
To measure the pressure drop and deduce the flow rate
What is the typical angle of the diverging section in a Venturi meter?
7°
Which equation is derived from a combination of Bernoulli’s principle and the equation of continuity?
P1 – P2 = g h (ρm– ρ )
What does a reduction in the area lead to, according to the continuity equation?
Increase in speed
In the Bernoulli equation, what does an increase in speed lead to?
Decrease in pressure
For liquids, what is the formula for calculating pressure difference due to the VENTURI effect?
(P1 – P2) = g h (ρm– ρ )
For gases, what is the formula for calculating pressure difference due to the VENTURI effect?
(P1 – P2) = g h (ρm– ρ ) / 2
What is the theoretical entry velocity, according to the given equations?
$V_1=2P_1-P_2ρA_1A_2^2-1$
What does the discharge coefficient (CD) account for?
Friction and other losses
What will always be less than the theoretical flow rate?
Pressure drop due to VENTURI effect
Explore the applications of Bernoulli’s equation and methods for measuring discharge and velocity in pipes. Understand the significance of accurate flow rate measurement in maintaining the quality of industrial processes.
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