centrifugal pump solved examples|centrifugal pump specifications pdf : service Dimensionless performance curves for a typical centrifugal pump from data given in Fig. 14.9 Fig. (14.10) The suction and discharge line piping should be supported independently of the pump foundation. Expansion joints can be used on either the suction or discharge line side or both as .
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Please note that the pump preventive maintenance schedule for each pump would depend on its design and application, and hence you should always consult the pump manufacturer for the same. However, the above .
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)
1.5 Other types of pumps 11 1.6 Centrifugal pumps 12 2 Centrifugal Pumps: Design and Construction 19 2.1 Introduction 19 2.2 Impellers 19 2.3 Pump casings 25 2.4 Wearing rings 31 2.5 Shaft 34 2.6 Stuffing boxes 35 2.7 Mechanical seals and seal housings 38 2.8 Bearing housing / bearing isolators 52
centrifugal pump solved examples|centrifugal pump specifications pdf