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2019 07 12 team meeting agenda

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Michael Wetter edited this page Jul 16, 2019 · 19 revisions

Meeting access

Date: July 12, 2019, 9:00-11:00 Pacific Time

Dial-in information: https://lbnl.zoom.us/my/mwetter

Or iPhone one-tap (US Toll): +14086380968,6614042296# or +16465588656,6614042296#

Or Telephone:

Dial: +1 408 638 0968 (US Toll) or +1 646 558 8656 (US Toll)
Meeting ID: 661 404 2296
International numbers: https://lbnl.zoom.us/zoomconference?m=_h5BuJ686mPy3rWEyKf4NROxLaeOV5J8

Or an H.323/SIP room system:

H.323:
    162.255.37.11 (US West)
    162.255.36.11 (US East)
    221.122.88.195 (China)
    115.114.131.7 (India)
    213.19.144.110 (EMEA)
Meeting ID: 661 404 2296

SIP: [email protected]

Slides

Slides are posted at https://github.com/lbl-srg/obc/blob/master/meetings/2019-07-12-team

For sample CDL output in Word format, see https://github.com/lbl-srg/obc/blob/master/meetings/2019-07-12-team/cdl_parser_output.zip (Press the "Download" button and unzip the file.)

Agenda

  • 9:00 Upcoming deadlines
  • 9:15 Primary sequence implementation
    • Implementation of RP 1711
    • Case study
  • 9:35 CDL
    • Proposing CDL as an ASHRAE Standard
    • Guideline 36 reference implementation in CDL
    • CDL translation to English and to product line
  • 10:10 Control sequence selection and configuration tool
  • 10:30 Commercialization plan
  • 10:45 Next steps

Attendees

  1. Michael Wetter - LBL
  2. Philip Haves - LBL
  3. Mary Ann Piette - LBL
  4. Jianjun Hu - LBL
  5. Milica Grahovac - LBL
  6. Antoine Gautier - LBL
  7. Kun Zhang - LBL
  8. Lisa Rivalin - LBL
  9. Nari Yoon - LBL
  10. Paul Ehrlich - Building Intelligence Group
  11. Rich Rockwood - Oracle
  12. David Pritchard - Arup
  13. Jim Kelsey - kW Engineering
  14. Steve Taylor - Taylor Engineering LLC
  15. Dave Robin - BSC Softworks
  16. David Guerrant - Integral Group
  17. Paul Switenki - Arup
  18. William Casper-Ortiz - Integral Group

Minutes

Progress update (20 min)

Michael Wetter explained the projects milestone and progress:

Phase 1: extension approved by DOE to end in October 2020, CEC approval expected soon. Waiting for official approval from DOE for phase 2, PNNL will join the team.

Project Phase 2 goals:

  • More control sequences for boiler, DOAS, Radiant system, MPC, fault detection
  • Make CDL an ASHRAE and ISO standard
  • Provide to control vendors with assistance to develop translators for their particular control lines
  • Work on the connection with BRICK/Haystack models, create a conversion tool from
  • Streamline communication of control sequences

Primary Sequence implementation:

Milica Grahovac presented the implementation approaches: sequences are implemented modularly and then generalized.
Questions: sequence breakdown to allow other types of controls? Michael suggested to discuss with Dave Robin on the implementation of breakpoints on the sequences (example: Freeze protection)

Case Study:

  • Waiting for the sequence to be implemented, hopefully, fall 2019.
  • Discussion with Rich to be scheduled to learn more about the implementation process and understand what questions should be answered.

Control Sequence selection (35 min)

Proposing CDL as an ASHRAE Standard

  • CDL can be seen as a digital twin for commissioning and verification for control vendors to make sure they conform to the guideline sequences.
  • Steve Taylor will be leading the standard committee.
  • The standardization would not be static and allow vendors to extend it. The standard can evolve as a language extension
  • Standardization allows stability and consensus

Guideline 36 reference implementation in CDL

  • Modelizing the sequences is a challenge because even if the documentation is correct; the implementation doesn't seem to be tested.
  • The ambition is to have a close formulation between English language and CDL application.
  • Legal copyright matters need to be discussed with ASHRAE. Term sheet in review at LBL before being shared with ASHRAE.

CDL translation to English and to a product line

  • Dave Robin detailed his progress with the conversion from CDL to ALC EIKON: created a program that reads the JSON, converts to an executable sequence and maps with CDL Block types.
  • It's challenging to develop graphics mapping because of layout (blocks, hierarchical links) consistency issues between languages.

Configuration tool (20 min)

Antoine Gautier presented the control sequence selection and configuration tool.
Comments:

  • People are familiar with the interface of CtrlSpecBuilder
  • Could be interesting to create a survey to collect requirements

Commercialization plan (15 min)

  • It would be helpful to have more feedbacks

Next Steps (5 min)

Other discussions :

  • Think about the connection between OBC, demand flexibility and Grid-interactive Efficient Buildings (GEB)
  • How to decide between MPC and rule-base controls?
  • Organize of a workshop to engage with engineers on the field : for instance developments on continuous commissioning
  • Automatize the verification process (that could be integrated to the existing tools)
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