In the oil and gas industry, centrifugal pumps are widely employed as the predominant type of pumps. These pumps regulate the flow by utilizing discharge flow control valves.

Centrifugal pumps, available in various designs and applications, are now prevalent in a range of sectors including refining, petrochemical, process industries, power generation, and environmental engineering. Their versatility makes them suitable for diverse pumping needs across these industries.

Course Objectives:

At the end of the Calculation and Selection of Centrifugal Pumps course, you will be able to:

Identify different types of pumps, including centrifugal and positive displacement pumps
Recognize the advantages and the limitations of each type of pump
Calculate the flow of liquid through piping systems
Break down for you all the centrifugal pump operating principles into easily digestible concepts like cavitation, performance curves, head, etc
Illustrate through 3D animations and cut-sections the main pump mechanical components like impellers, shafts, bearings, packing, mechanical seals, etc
Provide guidelines and best practices for operation, maintenance and troubleshooting

Who Should Attend?

Calculation and Selection of Centrifugal Pumps training course is ideal for :

Petroleum, Chemical, Process and Mechanical Engineers
Production Engineers and Technologists
Operation, technical service and maintenance professionals
Consultants, Project managers and Sales professionals
Technical professionals responsible for piping system inspection
Technical professionals responsible for interdisciplinary energy projects

Course Outlines:

Introduction to Calculation and Selection of Centrifugal Pumps

Properties of Liquids, Pressure, Flow, energy, and Head
Different Pump Types
Pressure measurement
Pump head

Basic Pump Principles

Pump and System
Pump and System curves
Hydraulic gradient
How do pumps work
USEFUL WORK AND PUMP EFFICIENCY
Useful work from a pump
Flow determination
Pump efficiency

PUMP CLASSIFICATION

Positive displacement pumps
Centrifugal pumps
Conceptual difference between centrifugal and positive displacement pumps
Centrifugal volute pumps
Types of centrifugal pumps
Pump impellers 1/2
Suction specific speed, Nss
Pump impellers 2/2
Wear bands
Specific speed, Ns

UNDERSTANDING PUMP CURVES

Pump performance curves
Head vs Pressure (reminder)
The Head-Capacity curve (H-Q curve)
The efficiency curve
The energy curve (BHp curve)
The pump minimum requirement curve (NPSHr curve)
Overview of the 4 curves
Pump family curves

UNDERSTANDING THE SYSTEM CURVE

Total dynamic head, TDH
Determining the static head, Hs
Determining the pressure head, Hp
Determining the friction head (Hf) and the velocity head (Hv)
The Hazen and Williams formula
The Darcy and Weisbach formula
The Bachus and Custodio formula
The dynamic system
Dynamic pressure
Resistance changes

NET POSITIVE SUCTION HEAD - NPSH

-   Introduction
-   NPSH required
-   NPSH available

CAVITATION

-   Vapor pressure
-   What cavitation is all about
-   The effect of vapor pressure on pump performance
-   Vaporization cavitation
-   Internal re-circulation
-   The vane passing syndrome
-   Air aspiration
-   Turbulence cavitation
-   Preventing cavitation

BEARINGS

-   What is a bearing ?
-   Bearing lubrication
-   Bearing failure
-   Bearing maintenance
-   Bearing seals

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