centrifugal pump solved examples|centrifugal pump size chart : discounter The document contains 5 solved problems related to centrifugal pumps. The problems cover topics like calculating head, power required, efficiency, … This AMT 388F-97 bronze inline centrifugal pump has a 1/2 hp, 115/230V, 1 phase .
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Centrifugal Pump Overview A brief overview of the centrifugal pump’s basic anatomy, and how a centrifugal pump works. Centrifugal Pump Types Learn the characteristics, advantages, and disadvantages of 8 of the most used cen-trifugal pump types Centrifugal Pump Terminology Definitions of a few terms about centrifugal pumps used in this book.
Centrifugal pumps are widely used in various industries for fluid transportation and are known for their efficiency and reliability. In this article, we will explore a centrifugal pump example to understand how these pumps work and how to calculate important parameters.
The document contains 5 solved problems related to centrifugal pumps. The problems cover topics like calculating head, power required, efficiency,
Example:
A centrifugal pump has an outlet diameter equal to two times the inner diameter and is running at 1200 rpm. The pump works against a total head of 75 m. We need to calculate the velocity of flow through the impeller.
Solution:
To calculate the velocity of flow through the impeller, we can use the formula:
\[ V = \frac{Q}{A} \]
Where:
- \( V \) = Velocity of flow (m/s)
- \( Q \) = Flow rate (m\(^3\)/s)
- \( A \) = Area of the impeller (m\(^2\))
First, we need to calculate the flow rate using the formula:
\[ Q = \frac{\pi \times D^2 \times N}{4 \times 60} \]
Where:
- \( D \) = Diameter of the impeller (m)
- \( N \) = Pump speed (rpm)
Given that the outlet diameter is two times the inner diameter, we can calculate the diameter of the impeller:
Inner diameter, \( D_i = D \)
Outlet diameter, \( D_o = 2D \)
Area of the impeller, \( A = \frac{\pi}{4} \times (D_o^2 - D_i^2) \)
Substitute the values and calculate the flow rate:
\[ Q = \frac{\pi \times (2D)^2 \times 1200}{4 \times 60} \]
Next, we calculate the area of the impeller:
\[ A = \frac{\pi}{4} \times ((2D)^2 - D^2) \]
Now, we can calculate the velocity of flow using the formula mentioned earlier.
Dimensionless performance curves for a typical centrifugal pump from data given in Fig. 14.9 Fig. (14.10)
3. OPERATING PRINCIPLES Liquid enters the suction nozzle & later into the eye of the impeller due to the rotation of the pump impeller. Low pressure region “pulls” the liquid towards the eye of the impeller. The rotation of the impeller radially pushes the liquid → centrifugal acceleration. The centrifugal force & curved nature of the blade pushes the liquid in the tangential and radial .
centrifugal pump solved examples|centrifugal pump size chart