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  • Home
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  • SketchUp Models
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    • 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 >
      • Logic Diagram Example - Discharge Air
      • Logic Diagram Example - CHW Plant 01
      • Logic Diagram Example - VAV AHU
    • 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
      • 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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Existing Building Commissioning Workshop Series 18 Materials

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As indicated on the main page, the true source for the materials for the existing building commissioning class workshop is the FTP site Ryan maintains.  If you need information regarding how to access it, you should contact him via e-mail at [email protected].  It would be desirable to include the words "EBCx Workshop Series Materials FTP Site Access" in the subject line to catch his attention.
 
​The materials below are the materials I provide for the portions of the workshop that I teach.   I am going to keep placing them here so that you can access them before class if you want and also to make it easy for Ryan to pull them back for the FTP site. 
Note that I frequently include a "READ ME" file in the zip file with the materials and resources that describes what each of the files is about.
2023-04-20
2023-06-23
2023-10-12
2024-02-08
2023-05-18
2023-08-10
2023-12-07
2024-03-19
2023-06-22
2023-09-07
2024-01-11
2024-05-10
 

April 20, 2023

 The files below are the files I will be using in class today.  You will also need to have:
  1. A version of SketchUp (viewer preferred) installed on a desktop or mobile device.   Information was provided in the pre-class e-mails and can also be found on the Hijend Hotel Models and Videos section of the Blog Support page of this site.
  2. A version of the Hijend Hotel models, which can also found on the Hijend Hotel Models and Videos section of the Blog Support page of this site.  Instructions to help you decide which version is best suited to the version of SketchUp you are using and the platform you are running it on are also included.
  3. The documents associated with the different systems we will be working with in the Hijend Hotel, which were shared in the pre-class e-mails but can also be found in the Hijend Hotel Documents section of the Blog Support page of this site.
ebcx_18-01_v1.pptx
File Size: 24448 kb
File Type: pptx
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should_ahus_be_on_moa.pptx
File Size: 1705 kb
File Type: pptx
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psych_chart_errector_set.pptx
File Size: 1707 kb
File Type: pptx
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m-02_-_equipment_schedule_v8.pdf
File Size: 1527 kb
File Type: pdf
Download File

 

May 18, 2023

Today, we will continue working with the models and materials I provided for the last session, so you should make sure you have all of them available, including the Sketchup Models and the Hijend Hotel documents.    We will also use the following files.
ebcx_18-02_v3.pptx
File Size: 16185 kb
File Type: pptx
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distribution_loop_sketch.png
File Size: 76 kb
File Type: png
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FOLLOW UP
  1. The .pdf of the e-mail below is a copy of the e-mail Ryan sent you after class that provides instructions for the system diagram exercise. 
  2. The Berkely Labs website that allows you to benchmark a lab building is at this link.
  3. The file ebcx_18-02_v3_class.pdf are the marked up slides from the class, including the answer for the system diagram exercise in slides 59 and 60.
  4. The paper I mentioned by Steve Taylor about why enthalpy controlled economizers don't work and advocating for the fixed dry bulb temperature approach is at this link.
  5. A paper describing the ASHRAE Radiant Time Series (RTS) load calculation approach can be found at this link.  The spreadsheet ASHRAE developed that allows you to perform the calculation can be purchased for about $40 at this link.
system_diagram_exercise_instructions_e-mail.pdf
File Size: 212 kb
File Type: pdf
Download File

ebcx_18-02_v3_class.pdf
File Size: 14354 kb
File Type: pdf
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June 22, 2023

The following files will be used for our session today.  You may also need them for the session tomorrow.

SYSTEM DIAGRAM DISCUSSION AND NODE ANALYSIS BREAK OUT SESSIONS
2023-06-22_system_diagram_node_analysis_exercise_v2.pptx
File Size: 5413 kb
File Type: pptx
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2023-06-22_system_diagram_exercise-break-out-materials.zip
File Size: 5498 kb
File Type: zip
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BUILDING AN AIR HANDLING UNIT SYSTEM DIAGRAM
2023-06-22_ball_room_ahu_system_diagram_exercise.zip
File Size: 4853 kb
File Type: zip
Download File

BALL ROOM AIR HANDLING UNIT SCOPING EXERCISE
2023-06-22_ball_room_ahu_ball_room_ahu_scoping_v1.pptx
File Size: 27819 kb
File Type: pptx
Download File

2023-06_ball_room_ahu_scoping_break_out_materials.zip
File Size: 16900 kb
File Type: zip
Download File

 

June 23, 2023

These are the files I will be using in addition to the files from yesterday, time permitting.
​
CONDENSER WATER SYSTEM SCOPING EXERCISE 
2023-06-22_cw_scoping_v1.pptx
File Size: 4206 kb
File Type: pptx
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2023-06_ball_room_ahu_scoping_break_out_materials.zip
File Size: 16900 kb
File Type: zip
Download File

These are the files I will be using in addition to the files from yesterday, time permitting.
​
CHILLED WATER SYSTEM DIAGRAM DEVELOPMENT EXERCISE 

For this exercise, I am going to encourage that you try hand-drawing the system diagram for a number of reasons.
  • ​This is a good way to start no matter how you plan to make your final drawing.
  • Some people simply are not comfortable using electronic drawing techniques like CAD or MS Office shapes and I want to emphasize that there is nothing wrong with a hand drawn system diagram using a pencil and paper.
In the olden days, I literally did my first drafts with pencil on paper.  Sometimes, the final draft would also be pencil on paper because it was a good compromise between presentation and the time it took to produce it.  In my case, I found that if I used graph paper, my line quality and printing was presentable enough for a final draft without having to get out the parallel bar, tee-square, triangles, compasses, French curves, etc.

​Now, my pencil is frequently an iPencil and my paper is my iPad with the benefit being that it is as fast and easy for me as paper and pencil, but it can be easily reproduced, I can copy and paste symbols, and i can re-arrange things to improve the draft with out erasing things or starting over again.  Here is an example from a recent project.
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Point being, there is nothing wrong with hand drawn system diagrams, and I am hoping this exercise gives you a chance to try it out, be it with a paper and pencil or an iPad an iPencil.  Along these lines, there is a short video you can watch about hand drawn system diagrams and symbols available at this link.
FOLLOW UP INFORMATION
These are the files I mentioned providing.  The zip triple duty valves and circuit setters zip file contains a number of documents that illustrate the features, construction and performance curves for these Bell and Gossett devices.  Both of them can be used for balancing by reading the pressure drop across them, noting the valve position and then using the calibration curves.  The triple duty valves (TDV), in addition to allowing balancing, can function as a service valve and a check valve on the discharge of a pump.  I have included a couple of pictures I took that show what a TDV looks like on the inside.

The Greenheck installation and operating manual (I&OM) is fairly typical of what a fan I&OM looks like.  Of particular interest in the context of our class discussion is the information on page 6 titled RADIAL GAP, OVERLAP & WHEEL ALIGNMENT which illustrates the clearances between the inlet cone and fan wheel and the tolerances required to maintain the fan's design efficiency.
triple_duty_valves_and_circuit_setters.zip
File Size: 13157 kb
File Type: zip
Download File

centrifugal_fans_installation_o_m.pdf
File Size: 218 kb
File Type: pdf
Download File

 

August 10, 2023

These are files I will be using today in class.   But we will also be picking up where we left off from the June sessions.  So please have the June session files available also.
jess_project_breakout.zip
File Size: 9059 kb
File Type: zip
Download File

We are also going to try using a 3DVista file as a way to interact with the SketchUp models.  This link will let you download the 3DVista project in the form of a stand-alone player that you can run on your Windows computer.

This link will let you download the 3DVista project in the form of a Mac stand-alone player.
 

September 7 and 8, 2023

Here is the system diagram answer from our work on Jess's site.  
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And here is the node analysis that shows why the new chilled water pump did not work properly because it moved flow around the chillers vs. being in parallel with the other pumps and moving flow through the chillers.  Note that the 1,000 gpm flow rates shown are not the actual flow rates, rather I picked the number to make it easier to demonstrate the issue.  The design flow rates for each pump and chiller are 1,400 gpm but given the common headers and pressure drop due to flow, it is likely that the pumps operate at different flow rates depending on the number of pumps and chillers in operation.
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This shows how the pump piping would need to be reconfigured to put it in the correct location from a system diagram standpoint.   Note that it would also be highly desirable to replace the piping at the pump that was sized based on the pump connection sizes vs. the flow rate it was delivering.   And also note that the existing headers where the flow from all pumps and/or all chillers combines is somewhat undersized for the required flow rate when all four chillers and pumps are running.
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This link will take you to a draft of a 3DVista exercise that I am working on that focuses on several of the things that Jess is dealing with at her site.  It is still under development, but it will give you a way to re-visit the site if you wanted to look around again. 

Currently, it shows the CHW piping and system diagram.  But I am working on something with the net positive suction head issue and also something with the air handling systems we saw.   The link should update as I develop the exercise and republish the content, so you may want to check back every-once-in-a-while.
 

October 12, 2023

Here are the materials we will be using in class today.
npsh_exercise.zip
File Size: 44900 kb
File Type: zip
Download File

02__-_heat_rejection_equipment_v3.pptx
File Size: 240504 kb
File Type: pptx
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moving_on_from_scoping_exercise.zip
File Size: 25735 kb
File Type: zip
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December 7, 2023

Here are the materials we will be using in class today, along with this link.
field_savings_assessment_v1.pptx
File Size: 2013 kb
File Type: pptx
Download File

introduction_to_functional_testing_v7.pptx
File Size: 17178 kb
File Type: pptx
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1015-blanktestform.xls
File Size: 171 kb
File Type: xls
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npsh_topic.zip
File Size: 41672 kb
File Type: zip
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January 11, 2024

Here are the materials we will be using in class today, along with this link.
field_savings_assessment_v2.pptx
File Size: 3259 kb
File Type: pptx
Download File

blank_on-the-fly_test_form_v2.xls
File Size: 217 kb
File Type: xls
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chiller_plant_findings_list_v3.pdf
File Size: 74 kb
File Type: pdf
Download File

 

February 8, 2024

Here are the materials we will be using in class today, along with this link.
pump_test_exercise.zip
File Size: 1007 kb
File Type: zip
Download File

tony_ebcx_series_year_18_hydronic_valves_with_videos.pdf
File Size: 2888 kb
File Type: pdf
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2014-05-18_aerocross_applicaiton_guide.pdf
File Size: 1598 kb
File Type: pdf
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iom-sdtu.pdf
File Size: 491 kb
File Type: pdf
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system_diagram_discussion.zip
File Size: 9685 kb
File Type: zip
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system_diagram_examples.zip
File Size: 11436 kb
File Type: zip
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single_duct_vav_terminal_installations.pdf
File Size: 90 kb
File Type: pdf
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2014-05-18_vav_i_o_and_m.pdf
File Size: 1442 kb
File Type: pdf
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March 19, 2024

Here are the materials we will be using in class today, along with this link and some of the materials from the last session.
2024-03-19_davids_slides_v1.pptx
File Size: 12589 kb
File Type: pptx
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digitized_pump_curve_exercise.zip
File Size: 4775 kb
File Type: zip
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request_for_prices_and_bids.zip
File Size: 969 kb
File Type: zip
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bell_and_gossett_6g_1150_rpm.png
File Size: 368 kb
File Type: png
Download File

personl_project_presentation_requirements_v3.pptx
File Size: 8944 kb
File Type: pptx
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pump_curve.zip
File Size: 1003 kb
File Type: zip
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1510_6g_1150_rpm_evaporator_pump_assessment_v9.xlsx
File Size: 6957 kb
File Type: xlsx
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class_v1.pptx
File Size: 2433 kb
File Type: pptx
Download File

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