centrifugal pump solved examples|centrifugal pumps free pdf books : mail order
The centrifugal pump is a mechanical element driven by an electric motor, and each characteristic curve of the pump refers to a precise rotation of the motor, dependent, in the case of common asynchronous motors, on the supply frequency and the number of poles of the motor itself (e.g. 50 hertz, 2-pole motor: 2900 rpm).
{plog:ftitle_list}
Taking an extra-large-flow and high-power centrifugal pump as a prototype, a test model pump was designed according to the similarity theory and numerical simulation conversion. The model pump was manufactured using moldless casting technology and subjected to model test, serving as preliminary work for verifying and improving the performance .API610 Centrifugal Pumps for the Petroleum Industry sets out how efficiency varies with impeller type and specific speed (note imperial units). 4 The API610 data .
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)
Industrial Pumps; Special Application Pump; Submersible Pumps; Product Type . Borewell Oilfilled Submersible Pumps; Borewell Waterfilled Submersible Pumps; End-suction Pumps; .
centrifugal pump solved examples|centrifugal pumps free pdf books