centrifugal pump solved examples|centrifugal pump textbook pdf : Brand A centrifugal pump having outlet diameter equal to two times the inner diameter and running of 1200 rpm. Works against a total head of 75 m. The velocity of flow through the impeller is … The SEIM PXF series of indoor/outdoor screw pumps is ideal for use in pressure pumping .
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Limitations of Screw Pump: They may not be suitable for handling abrasive or solid-laden fluids, and their pressure capabilities are limited compared to other pump types. 4. Lobe Pump: Features two or three lobes that rotate within a housing, creating expanding and contracting chambers. Efficient for viscous and shear-sensitive fluids.
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)
Buyers of new industrial equipment are returning to their roots with the shift from centrifugal to screw pumps for their critical applications. Screw pumps, first introduced by Archimedes around 200 B.C., are positive .
centrifugal pump solved examples|centrifugal pump textbook pdf