Centrifugal pumps : Principles , Operation and Design

Course Curriculum

Chapter 1: ABOUT THE COURSE

Lecture 1: Introduction

Lecture 2: Learning objectives

Lecture 3: Course video sample

Chapter 2: BASIC PUMP PRINCIPLES

Lecture 1: Introduction

Lecture 2: How do pumps work

Lecture 3: Pressure measurement

Lecture 4: Pump head

Chapter 3: NET POSITIVE SUCTION HEAD – NPSH

Lecture 1: Introduction

Lecture 2: NPSH required

Lecture 3: NPSH available

Chapter 4: CAVITATION

Lecture 1: Vapor pressure

Lecture 2: What cavitation is all about

Lecture 3: The effect of vapor pressure on pump performance

Lecture 4: Vaporization cavitation

Lecture 5: Internal re-circulation

Lecture 6: The vane passing syndrome

Lecture 7: Air aspiration

Lecture 8: Turbulence cavitation

Lecture 9: Preventing cavitation

Chapter 5: THE AFFINITY LAWS

Lecture 1: The affinity laws explained

Chapter 6: USEFUL WORK AND PUMP EFFICIENCY

Lecture 1: Useful work from a pump

Lecture 2: Flow determination

Lecture 3: Pump efficiency

Chapter 7: PUMP CLASSIFICATION

Lecture 1: Introduction

Lecture 2: Positive displacement pumps

Lecture 3: Centrifugal pumps

Lecture 4: Conceptual difference between centrifugal and positive displacement pumps

Lecture 5: Centrifugal volute pumps

Lecture 6: Types of centrifugal pumps

Lecture 7: Pump impellers 1/2

Lecture 8: Suction specific speed, Nss

Lecture 9: Pump impellers 2/2

Lecture 10: Wear bands

Lecture 11: Specific speed, Ns

Chapter 8: UNDERSTANDING PUMP CURVES

Lecture 1: Pump performance curves

Lecture 2: Head vs Pressure (reminder)

Lecture 3: The Head-Capacity curve (H-Q curve)

Lecture 4: The efficiency curve

Lecture 5: The energy curve (BHp curve)

Lecture 6: The pump minimum requirement curve (NPSHr curve)

Lecture 7: Overview of the 4 curves

Lecture 8: Pump family curves

Chapter 9: UNDERSTANDING THE SYSTEM CURVE

Lecture 1: Total dynamic head, TDH

Lecture 2: Determining the static head, Hs

Lecture 3: Determining the pressure head, Hp

Lecture 4: Determining the friction head (Hf) and the velocity head (Hv)

Lecture 5: The Hazen and Williams formula

Lecture 6: The Darcy and Weisbach formula

Lecture 7: The practical formula

Lecture 8: The dynamic system

Lecture 9: Dynamic pressure

Lecture 10: Resistance changes

Chapter 10: SHAFT DEFLECTION

Lecture 1: Introduction

Lecture 2: 60° and 240° radial loads

Lecture 3: Operation, design and maintenance

Lecture 4: Tight tolerances in centrifugal pumps

Lecture 5: Signs of shaft deflection : Interpreting the evidence

Lecture 6: The sweet zone

Lecture 7: The dual volute pump

Chapter 11: BEARINGS

Lecture 1: What is a bearing ?

Lecture 2: Bearing lubrication

Lecture 3: Bearing failure

Lecture 4: Bearing maintenance

Lecture 5: Bearing seals

Chapter 12: SHAFT PACKING

Lecture 1: What packing is all about

Lecture 2: Packing leakage

Lecture 3: Stages in the life of packing

Chapter 13: MECHANICAL SEALS

Lecture 1: Introduction

Lecture 2: The mechanical seal

Lecture 3: The single UNbalanced INside mounted mechanical seal

Lecture 4: The single UNbalanced OUTside mounted mechanical seal

Lecture 5: The single balanced INternal mechanical seal

Lecture 6: The single balanced EXternal mechanical seal

Lecture 7: O-rings

Lecture 8: The balance effect : advantages and mathematical explanation

Lecture 9: The cartridge mechanical seal

Lecture 10: Double seals

Lecture 11: The tandem dual seal

Lecture 12: The back to back double seal

Lecture 13: The face to face double seal

Lecture 14: Support system for dual seals

Lecture 15: Bonus