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2019 07 12 team meeting agenda
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 will be 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.)
- 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
- Michael Wetter - LBL
- Philip Haves - LBL
- Mary Ann Piette - LBL
- Jianjun Hu - LBL
- Milica Grahovac - LBL
- Antoine Gautier - LBL
- Kun Zhang - LBL
- Lisa Rivalin - LBL
- Nari Yoon - LBL
- Paul Ehrlich - Building Intelligence Group
- Rich Rockwood - Oracle
- David Pritchard - Integral Group
- Jim Kelsey - kW Engineering
- Steve Taylor - Taylor Engineering LLC
- Dave Robin - BSC Softworks
- David Guerrant - Integral Group
- Paul Switenki - Arup
- William Casper-Ortiz - Integral Group
Michael explained the projects milestone and progress:
Phase 1: extension approved to end in October 2020.
Waiting for official approval from DOE for phase 2 including PNNL
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 with BRICK/Haystack models, create a conversion tool from CDL
- Streamline communication of control sequences
Primary Sequence implementation:
Milica presented the implementation approaches : sequences are implemented modularly and then generalized.
Questions: sequence breakdown to allow other types of controls? Michael to suggest to discuss with Dave Robin on the implementation of break points on the sequences (example: Freeze protection)
Case Study:
- Waiting for the sequence to be implemented, hopefully fall 2019.
- Discussion with Rich to be scheduled.
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 despite a correct documentation, the implementation doesn't seem to be tested.
- The ambition is to have a close formulation between English language and implementation of CDL.
- Legal copyright matters needs to be discussed with ASHRAE
CDL translation to English and to a product line
- Dave Robin detailed his progress with the translation 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 create graphics mapping because of layout (blocks, hierarchical links) consistency between languages.