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  • Home
    • What's New
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  • 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
    • 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
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          • Student One On One Discussions
        • EBCx Workshop Series 16
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      • Portland General Electric
      • U of W >
        • U of W Archive
    • On Demand Training >
      • Fans, Ducts and AHUs
      • Induction Motor Principles
      • Introduction to Functional Testing
      • Scope of Work Documents
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ERDC 2020 RCx Academy

This page is where I will place resources and follow-up materials for the ERDC 202 RCx Academy Class I am helping to support.
2020-05-07
2020-05-19
2020-06-03
2020-05-13
2020-05-27
2020-06-10
2020-06-17
2020-07-22
 

2020-05-07 Kick-off Session

The following files support the session this morning.  I believe the file names are self explanatory, but let me know if you have questions.  The cooling tower model we were using is not on the site yet, so I have provided that below if you want to play with it.  But the chilled water plant model on the site is current and can be found on the Chilled Water Plant Scoping Exercise and on the Chilled Water Plant System Diagram Exercise page.  If you want to try your hand at the "Easter Egg Hunt", you will find everything you need on the Bureaucratic Affairs Building Scavenger Hunt page.
Finally, if you want to read the Energy Conservation is an Ethic paper that I mentioned, you will find it along with other very useful things that Bill Coad wrote on the Bill Coad's Writings page of the website.
Cooling Tower Model and Scene Guide.zip
File Size: 30441 kb
File Type: zip
Download File

2020-05-07_PowerPoint.pptx
File Size: 52203 kb
File Type: pptx
Download File

 

​2020-05-13 Loads and Processes

2020-05-13_loads_and_processes.zip
File Size: 36054 kb
File Type: zip
Download File

The zip file contains the files I used in this morning's session.  There is a supporting information folder that includes the mixed air temperature calculation spreadsheet I used (also available on the Mixed Air Calculations tool page of the website), the spreadsheet with the ball room load calculation in it and the ASHRAE cooling load temperature differential (CLTD) tables in it, which can be used to do a manual, hour by hour load estimate.  
Note that the PowerPoint slides have slides that show the calculations we did in class in case you are interested.  We were going pretty quickly at the time.
In addition, an number of resources for doing piping calculations were mentioned. They included:
  • Practical Plumbing Design Guide by James Church
  • Piping System Fundamentals by Ray T. Hardee
  • Flow of Fluids through Valves, Fittings and Pipes (a.k.a. Crane Technical Paper No. 410)
You can find both new and used copies of these on the internet. I believe several of them area also available as a .pdf.
office_hours_support.zip
File Size: 11325 kb
File Type: zip
Download File

The file to the left contains updated slides from the session yesterday that now includes the compressor heat rejection calculation, which I forgot to include in the answers yesterday.
The slides we used to discuss economizers can be found on the Pacific Energy Center Design Performance and Commissioning Issues class page under the Economizers topic.  All of the class materials are posted there.  The slides are in the file labeled pdf_presentations.zip.
 

2020-05-19 Heating and Cooling Systems

The following files support the session this morning and also include the follow up information. There were a lot more things to do than time to do them, so I suspect we will revisit these materials later-on in one of the open office hours sessions that exist down the road.  Meanwhile, let me know if there is something you see in here that you have questions on and we can get together and address them.
2020-05-19_heating_and_cooling_equipment.zip
File Size: 100869 kb
File Type: zip
Download File

 

2020-05-27 Pumping Systems

Pumping Systems.pptx
File Size: 13387 kb
File Type: pptx
Download File

Chiller Plant Model.zip
File Size: 84156 kb
File Type: zip
Download File

The files to the left support the session I did yesterday.   The PowerPoint slides have slides inserted with the answers to the exercise we did so you have that information.
The model I was using was a specialized version of the one that I have shared with the CERL team, primarily to allow me to flip between different gauge readings for the evaporator pump test.
 So I have shared that model below so you have it if you want to look at it or simply want to use it moving forward.  

​One caveat' in that regard is that I did not have the time to adjust all of the pressure gauge readings for each of the test modes.   So, the gauges on the chiller evaporator will not read quite right for any mode other than the as found (throttled) mode.  I will fix that soon and the difference is not huge for the wide open vs. throttled mode.   But for the dead head mode, the evaporator pressure drop should be zero and right now, it will not show up that way.

blank_on-the-fly_test_form_v2.xls
File Size: 217 kb
File Type: xls
Download File

The spreadsheet file to the left is something we did not actually use but it may be helpful for you to organize an impromptu test like the pump test we did in the plant.  I am sure we will talk about functional testing more at some point.
misc._calcs_v1.xlsx
File Size: 400 kb
File Type: xlsx
Download File

The spreadsheet file to the left is the spreadsheet that I developed and plotted the system curve with. The chart shows up in the answer slide, but this will give you the actual "math" if you want to look at that.
Office Hours.pptx
File Size: 5823 kb
File Type: pptx
Download File

These are the slides from the office hours session and include answer slides.  The slides I opened to show the stuff about gauge accuracy and wear rings are from the PEC
  Pumps, Design, Performance and Commissioning issues class
;  the Pump Basics and Pump Curves modules specifically.
The files below are a test Jay and I did to see if we could solve the recording problem.  They are of no particular interest to anyone other than Jay.  This is just a way for me to get them to him.
camtasia_test_850_x_746.mp4
File Size: 17225 kb
File Type: mp4
Download File

camtasia_test_1000_x_562_mp4.mp4
File Size: 20052 kb
File Type: mp4
Download File

camtasia_test_1280x720.mp4
File Size: 25994 kb
File Type: mp4
Download File

 

2020-06-03 Air-Side Systems

These are the slides I used in class today.  The .pdf is the same as the .pptx but much smaller because it does not have the embedded video in it that exists in the .pptx file.  Note that these slides include answer slides and also two more images that you will need if you want to try to office hours session challenge.
airside_equipment_support_v2.pptx
File Size: 32261 kb
File Type: pptx
Download File

airside_equipment_support_v2.pdf
File Size: 24965 kb
File Type: pdf
Download File

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These two files are the Le Conte AHU model if you want to play with it along with the spreadsheet that has the test data from the testing we did.  The image to the left is my "four-in-one" tool that I used for the test, which you can purchase from Omega Engineering.
le_conte_annex_ahu_v12.zip
File Size: 106833 kb
File Type: zip
Download File

mixed_air_plenum_test_v6_-_velocity_stratification_example.xlsx
File Size: 15340 kb
File Type: xlsx
Download File

These two spreadsheets are economizer examples I was using, including the perfect economizer plot.  FYI, you could take the one with the perfect economizer plot on it, strip out my data and use it to analyze your own economizer.   The PowerPoint file is the presentation I used to explain how the plot is derived and is basically the same as what is used in your RCxU video on the topic.
2014-12-23_rtu3_performance_v2.xlsx
File Size: 1130 kb
File Type: xlsx
Download File

rtu3_economizer_performance_v3.xlsx
File Size: 26278 kb
File Type: xlsx
Download File

07_-_the_perfect_economizer_v3.pptx
File Size: 3115 kb
File Type: pptx
Download File

The to the below is a new version of the PowerPoint from the office hours session with the answer included.   I also mentioned an Energy Design Resources design brief that discusses techniques you can use to bring an energy efficiency focus to the schematic and design development phases of a project.  You will find that brief on the Energy Design Resources page;  it is the file named ​improving_mechanical_system_energy_efficiency_-_final.pdf.
airside_equipment_support_v3.pptx
File Size: 32937 kb
File Type: pptx
Download File

 

2020-06-10 Controls Part 1

economizer_evaluation_exercise.zip
File Size: 23042 kb
File Type: zip
Download File

The file to the left contains the information you will need to do the exercise Chris assigned in class.  I will go through the exercise in my session next week.
 

2020-06-17 Controls Part 2

economizer_exercise_v3.pptx
File Size: 27444 kb
File Type: pptx
Download File

office_hours_challenge_v1.pptx
File Size: 8195 kb
File Type: pptx
Download File

The top file to the left is the slides I used in class today along with the materials I uploaded on June 10th (above).  The bottom file will give you some food for thought if you want to try the office hours challenge.  We will discuss the answer tomorrow in the office hours session. 
I am also working on a version of the economizer exercise that has the answers in it and will load that up to the website in the next few days.
 

2020-07-22 System Diagrams

david_revised_class_content.zip
File Size: 108369 kb
File Type: zip
Download File

office_hours_challenge_v1.pptx
File Size: 8195 kb
File Type: pptx
Download File

The top file to the left is the slides I used in class today along with the materials I uploaded on June 10th (above).  The bottom file will give you some food for thought if you want to try the office hours challenge.  We will discuss the answer tomorrow in the office hours session. 
I am also working on a version of the economizer exercise that has the answers in it and will load that up to the website in the next few days.
 

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