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  • Home
    • What's New
  • Blog
    • Blog Support
  • SketchUp Models
    • SketchUp Resources
    • Bureaucratic Affairs Building HHW System Logic Exercise
    • Bureaucratic Affairs Building Scavenger Hunt
    • Chilled Water Plant System Diagram Exercise
    • The HIjend Hotel >
      • Chilled Water Plant Scoping Exercise
      • Ballroom AHU Scoping Exercise
      • Cooling Tower Scoping Exercise
  • Tools
    • Altitude Correction Factor
    • Economizer Evaluation Checklist
    • Eikon for Educators and WindLGC
    • Effective Duct Length Tool
    • Excel Third Axis Tool
    • Excel Time Value Conversion
    • Insulation Savings Tools
    • Logic Diagram Tool
    • Mixed Air Calculations
    • Monitoring Plan Spreadsheet
    • Pipe Friction Chart
    • Plot Digitizer >
      • Plot Digitizer Pump Curve Example
    • Square Law Spreadsheet
    • System Diagram Symbols
    • Thermodynamic Diagrams Spreadsheet
    • Universal Translator Data Analysis Tool
    • y = (m * x) + b Spreadsheet
  • Useful Formulas
    • Affinity Laws
    • Circular Equivalent Duct
    • Effective Duct Length
    • FT Guide Appendix C
    • HVAC Equations and Concepts
    • Hydraulic Diameter
    • Pump Power and Energy
    • "Square Law"
  • What's That Thing?
    • Cooling Towers
    • Pumps
    • Valves
  • Resources
    • Bill Coad's Writings
    • Data Logging Resources
    • EBCx Skills Guidebook
    • Energy Design Resources
    • Fisher Controls Valve Cavitation Bulletin
    • Functional Testing Guide
    • Honeywell Gray Manual
    • MCC Powers Bulletins
    • NBCIP Reports
    • PEC Tool Lending Library
    • PID Resources
    • Pneumatic Control Resources
    • Resource List
    • Scoping Resources
    • TAB Resources
    • Vintage Carrier Design Manual
    • VRF Systems
    • Williams' Wisdom
  • Videos
    • Bureaucratic Affairs HHW Logic Answers
    • Cooling Tower Flow Variation
    • Economizer Stratification
    • Functional Testing
    • Induction Principles
    • Monitoring Plans
    • CW Pump Deadheaded by Tower Lift
    • Ripple Effects
    • Testing a Pump
    • The Garden of Low Entropy
    • Variable Flow Systems
  • Training
    • Materials from Classes and Presentations >
      • ACEEE
      • ASHRAE
      • ASHRAE - Engineers Notebook
      • BCxA and NCBC
      • BEST Institute
      • Case Studies
      • ERDC 2020 RCx Academy
      • ELPNW
      • ICEBO
      • Marriott AEP
      • Magazine Articles
      • NAVFAC
      • Pacific Energy Center Design, Performance and Commissioning Issues Classes >
        • PEC Class Materials Archive
      • Pacific Energy Center EBCx Project Review
      • Pacific Energy Center EBCx Workshop Series >
        • EBCx Workshop Series 12
        • EBCx Workshop Series 13
        • EBCx Workshop Series 14
        • EBCx Workshop Series 15 >
          • Student One On One Discussions
        • EBCx Workshop Series 16
        • EBCx Workshop Series 17
        • EBCx Workshop Series 18
      • Portland General Electric
      • U of W >
        • U of W Archive
    • On Demand Training >
      • Benchmarking UCA and Scoping
      • Loads and Psychrometrics
      • Induction Motor Principles
      • Introduction to Functional Testing
      • Scope of Work Documents
      • System Diagraming
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Testing a Pump
(Plus a Demonstration of How Induction Motor Slip Varies with Load)

These videos illustrate how a centrifugal load in the form of a pump interacts with an induction motor as the load varies.   In the course of the demonstration, the videos also illustrate how to perform a pump test and then assess the results.

This first video was developed by the Pacific Energy Center to support the On-Demand content on induction motor principles that  can be accessed from the On Demand page of the website.  In it, I vary the load that the pump sees and you an watch the motor slip and kW vary as I do it.   In the course of doing that, I also illustrate the basic steps in performing a pump test.

​This second video is just an extraction from the video above that focuses on the actual pump test itself.


The file below is the test procedure we use when we do the test as a training exercise in a class.  Since it is for training purposes, there are steps we go through that you might not necessarily go through if you were testing a pump for a project. 

But you could easily edit the Excel based copy to your needs. And includes an "answer key" that explains what you should have observed and why it matters.  Note that the .pdf version of the test includes the pump curve and the system diagram.  The Excel version is just the test form.
pec_chilled_water_system_pump_test_v4.pdf
File Size: 1413 kb
File Type: pdf
Download File

pec_chilled_water_system_pump_test_v2.xls
File Size: 136 kb
File Type: xls
Download File

 Incidentally, the form used to develop this procedure along with quite a few other procedures and guidance for using them can be found in the Functional Testing Guide, which you can download from the Functional Testing Guide page of the website.

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Under Construction

The plan is to put together a video and post it here that shows how the data taken during the pump test in the video above can be plotted and interpreted on the pump's curve.

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