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This webinar was co-sponsored by ASCE's Environmental & Water Resources Institute (EWRI) and ASCE Continuing Education
Instructor: Mark Peterson, P.E.
Course Length: 1.5 Hours
Purpose and Background
Most water systems include pumps to move water through the treatment plant and through the distribution system. These pumps represent a significant capital cost, but an even more significant operational cost. Poor selection of a pump can result in a variety of problems, ranging from less efficient operation to complete system failure. This webinar discusses the pump selection process and reviews pump types. It provides analysis of pump and system curves, and it discusses the selection of appropriate pumps. It covers the number of pumps that may be required, whether the pumps should all be the same size, and how to analyze multiple pumps that operate simultaneously. This webinar also covers the concepts of shut off head, pump runout and net positive suction head. Lastly, this webinar covers how variable frequency drives impact the operation of the pump.
Primary Discussion Topics
- Types of water pumps
- Types of pump impellers
- Pump curves and system curves
- Multiple pump operation
Learning Outcomes
Upon completion of this course, you will be able to:
- Recognize the different types of pumps that are available to move clean water
- Identify the different types of impellers that are available and when each one should be used
- Determine how to develop a system curve
- Identify how to use the pump curve and the system curve to select an appropriate pump
Webinar Benefits
- Learn the basics of the different types of clean water pumps
- Examine the three main types of impellers used for clean water pumps
- Discover how to develop a system curve for a transmission main or a process pump
- Determine how to develop a system curve for a distribution system
- Understand how to select a pump using the manufacturer's pump curve and the system curve
- Find out how to add pump curves together to determine multiple operation
- Learn how variable frequency drives impact a pump curve
Assessment of Learning Outcomes
Students' achievement of the learning outcomes will be assessed via a short post-assessment (true-false, multiple choice and fill in the blank questions).
Webinar Outline
- Types of pumps - end-suction, horizontal and vertical
- Types of impellers - closed, open and semi-open
- Developing system curves for a single pipe
- Developing system curves for a distribution system
- Pump curves from manufacturers
- Pump selection using system curve and pump curve
- Combining multiple pump curves
- Impact of variable frequency drives
How to Earn your CEUs/PDHs and Receive Your Certificate of Completion
To receive your certificate of completion, you will need to complete a short on-line post-test and receive a passing score of 70% or higher within 1 year of purchasing the course.
How do I convert CEUs to PDHs?
1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]