Dear bldg sim,
I am looking for papers that elaborate on the concept of modeling, and how
it correlates to actual utility data to share with people within my company.
The questions keeps popping up, eg..
1. How does a baseline building compare to an average building?
2. How does a proposed building typically stack up against the utility
bills once the building is built?
3. How accurate an existing building model should be to be considered
useful, and how accurate is typically possible?
4. For an experimental setup what would be considered to be close enough
to be considered a "validated" model?
My understanding is that modeling is to show relationships between average
a baseline of a chosen vintage and that of a proposed design in terms of
relative percentages. For existing buildings I think that useful is within
20% and typically possible is 10%. Then for a validation model, the most
important factor is similar curves and close totals.
If anyone has any recommended papers, or personal experience it would be
appreciated.
Kind regards
*Jeremiah D. Crossett
Jeremiah,
I think you'll find a room full of experts and lots of advice on this at the upcoming SPC 209 Meeting at ASHRAE in Denver. I've enclosed a copy of the agenda, as well as the Chair's email, Jason Glazer. Part of the work for 209 is assembling the list you are looking for.
Also, you'll find useful information in the new Guideline 14, and in the Energy Management Handbook, by Doty and Turner. www.ibpsa.org and the www.esl.tamu.edu are also good places to check as well.
Jeff
1. CALL TO ORDER
1.1. Roll Call/Quorum Determination
1.2. Introduction of Members and Guests
1.3. Announcements
2. AGENDA REVIEW
3. MINUTES OF THE LAST MEETING - Nelson
4. LIAISON REPORTS - Anyone present
5. SUBCOMMITTEE REPORTS
5.1. Predesign Subcommittee - Sheffer
5.2. Conceptual design/Schematic design - Katzenberger
5.3. Design development/Construction documents - Baker
5.4. Construction/Commissioning/As-Built/Operations - Reddy
5.5. Resources/References/Definitions Subcommittee - DeBaillie
6. OLD BUSINESS
7. NEW BUSINESS
8. NEXT MEETING:
8.1. Standards writing tutorial
8.2. Subcommittee calls
8.3. Full committee calls
9. ADJOURN
Subcommittee Meeting Times and Locations: (all in plaza building, concourse level)
SPC 209 Predesign Subcommittee - Sunday 6:00-10:00p Plaza Court 3
SPC 209 Design development/Construction documents - Sunday 6:00-10:0p Plaza Court 6
SPC 209 Construction/Commissioning/As-Built/Operations - Sunday 6:00-10:00p Plaza Court 1
SPC 209 Resources/References/Definitions Subcommittee- Monday 8:00a-Noon Plaza Court 1
SPC 209 Conceptual design/Schematic design -Monday 8:00a-Noon Plaza Court 7
Jeff S. Haberl, Ph.D.,P.E., FASHRAE
Jeremiah,
That is an important topic among researchers and practitioners in the
simulation community for the last 20-30 years.
I made a presentation on this topic in a public EETD/LBNL seminar, A closer
look at the energy performance of buildings: simulated vs. measured. Slides
are available in PDF at
http://eetd.lbl.gov/news/events/2011/03/03/a-closer-look-at-the-energy-performance-of-buildings-simulated-vs-measured
I have some journal articles discussing related topics. You can find them
by using the Google Scholar.
Tianzhen