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Pumping Systems Design for Civil Engineers

1.4 CEUs | Thursday–Friday, September 26–27

Instructor

David J. Hanna, P.E., M.ASCE

"Excellent seminar! I wish I had attended this earlier so that I could have applied all this knowledge in my previous projects! Definitely worth the time. The instructor was extremely knowledgable and clearly knew his materials."
—Wai Cheong, Project Engineer, SRT Consultants, San Francisco, CA

Purpose and Background

This seminar presents the basics of pumping systems design and specifications for civil engineers. An emphasis is placed on the application of pumping systems in municipal water, wastewater, and stormwater systems.

Topics covered include:

  • pump and system hydraulics
  • centrifugal pump selection
  • manufacturers interpretation of pump head-capacity curves
  • development of system curves
  • types of pumping stations
  • series and parallel operation
  • variable speed systems
  • friction losses in sludge pumping
  • wet well design
  • specifying of pumps
  • shop drawing review considerations
  • common pump operating problems

This seminar will provide the hydraulic engineering design needed for successful pump station projects and for providing pumping systems with the necessary hydraulic flexibility required on water and wastewater treatment plants and pumping stations.

Seminar Benefits

  • Determine which engineering relationships apply to specific pumping situations
  • Know the impact of pump machine construction on hydraulic performance
  • Learn how to marry theoretical hydraulics with practical pump station and system design
  • Learn the latest approaches in wet well design including the new Hydraulic Institute/ANSI Design Standards
  • Learn how to design correctly for viscous sludges without using inaccurate rules of thumb
  • Share positive experiences with other designers and engineers

Learning Outcomes

  • Learn how to design and specify successful pumping systems
  • Know the major classifications of pumps and how that classification affects hydraulic operating conditions and design issues
  • Review the basics of hydraulics and pressure factors as related to pump system design
  • Understand flow regimes and which engineering relationships do and do not apply in each regime
  • Understand and calculate actual net positive suction head on a pump
  • Understand and calculate all system head losses in a pumping system
  • Develop a hydraulic grade line
  • Understand pump impellers and how different types are hydraulically applied
  • Understand and interpret the manufacturers pump head-capacity curves
  • Understand and apply the pump affinity laws
  • Review the comparative features of different types of pump stations
  • Review and discuss suggested approaches to specifying pumps
  • Review and discuss design review items during shop drawing review
  • Learn why traditional hydraulic design methods do not work with non-newtonian fluids and sludges
  • Review associated station design elements
  • Discuss design blunders and how to avoid future errors

Assessment of Learning Outcomes

Throughout the seminar, class exercises, group discussion, calculation, and interpretation of materials taught will help assess students' achievement.

Who Should Attend?

Civil engineers and design engineers, consulting engineers and project managers, specification writers, construction and mechanical contractors, plant superintendents and operators, and approval agency plan reviewers.

Seminar Outline

Time: 8:30 a.m. - 5:00 p.m. with a 1 hour lunch break

Pump Types and Classification

  • Classification of Pumps
  • Types of Centrifugal Pumps
  • Types of Rotary Pumps
  • Types of Positive Displacement Pumps

Basic Hydraulics

  • Liquid Characteristics
  • Fluid Properties
  • Pressure Relationships
  • Fluid Statics
  • Pumping Terms
  • Energy Losses in Pumping Systems (Design Example # 1)

System Hydraulics

  • Flow Regimes
  • Pipeline Friction Losses (Design Example # 2)
  • Minor Losses
  • System Head Curves (Design Example # 3)
  • Fluid Rheology

Pump Selection

  • Impeller Classification
  • Specific Speed
  • Centrifugal Pump Performance
  • Pump Operating Conditions & Duty Points (Design Example # 4)
  • Manufacturers Pump Curves

Systems Operations

  • Affinity Laws of Centrifugal Pumps
  • Pumping Application Considerations
  • Sump Design Issues
  • Net Positive Suction Head (Design Example # 5)
  • Variable Speed Pumping

Types of Stations

  • Wastewater Pumping Stations
  • Water Pumping Stations

Shop Drawing Review

  • Pump Performance
  • Materials
  • Contract Coordination

Wastewater Pumps

  • Types of Wastewater Pumps
  • Selection & Comparison of Wastewater Pumps

Water Pumps

  • Types of Water Pumps
  • Selection & Comparison of Water Pumps

Sludge Pumping

  • Sludge Design Characteristics
  • Friction Headlosses (Design Example # 6)
  • Sludge Design Concepts
  • Design Guidelines
  • Comparison of Sludge Pumps

Station Design

  • Design for Expansion
  • Increasing Existing Station Capacity
  • Designing for Operations
  • Designing for Safety
  • Design Problems
  • Mechanical and Maintenance Design

Avoiding Design Blunders

  • General
  • Site
  • Environmental
  • Hydraulics
  • Pumps
  • Valves
  • Mechanical
  • Electrical
  • Structural/Architectural
  • Specifications
  • Economics

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