IIRF Online > Teaching & Academics > Engineering > Mechanical Engineering > Centrifugal pumps : Principles , Operation and Design
Centrifugal pumps : Principles , Operation and Design by Udemy
A complete understanding of construction details and functioning of centrifugal pumps for successful plant operation
Course Highlights
- Understand centrifugal pumps working principles for successful operation of your plant and piping systems
- Understand centrifugal pumps construction details (impeller, volute, shaft, bearings, packing, mechanical seals, etc)
- Lear how to read and interpret your pump curves
- Learn how to determine and interpret your piping system curve
- Optimize the operation efficiency of your pumping systems
- Analyze the problems in operation related to packing, mechanical seals, bearings and flow control
- Apply the best practices and guidelines for maintenance, problem solving and troubleshooting
Skills you will learn!
Curriculum
3 Topics
Introduction
Learning objectives
Course video sample
4 Topics
Introduction
How do pumps work
Pressure measurement
Pump head
3 Topics
Introduction
NPSH required
NPSH available
9 Topics
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
1 Topic
The affinity laws explained
3 Topics
Useful work from a pump
Flow determination
Pump efficiency
11 Topics
Introduction
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
8 Topics
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
10 Topics
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 practical formula
The dynamic system
Dynamic pressure
Resistance changes
7 Topics
Introduction
60° and 240° radial loads
Operation design and maintenance
Tight tolerances in centrifugal pumps
Signs of shaft deflection : Interpreting the evidence
The sweet zone
The dual volute pump
5 Topics
What is a bearing ?
Bearing lubrication
Bearing failure
Bearing maintenance
Bearing seals
3 Topics
What packing is all about
Packing leakage
Stages in the life of packing
16 Topics
Introduction
The mechanical seal
The single UNbalanced INside mounted mechanical seal
The single UNbalanced OUTside mounted mechanical seal
The single balanced INternal mechanical seal
The single balanced EXternal mechanical seal
O-rings
The balance effect : advantages and mathematical explanation
The cartridge mechanical seal
Double seals
The tandem dual seal
The back to back double seal
The face to face double seal
Support system for dual seals
Test your knowledge
Bonus
Centrifugal pumps : Principles , Operation and Design
Thank You!
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