[Bldg-sim] Building Energy Modeling Guidelines
Jason Glazer
jglazer at gard.com
Tue Mar 6 08:44:01 PST 2012
Great discussion. I have updated the "What guides and
reports may be useful?" topic on the FAQ to include many of
the guidelines that people have suggested. See:
http://onebuilding.org/wiki/doku.php
More suggestions are welcome.
Thanks
Jason
On 3/5/2012 4:19 PM, Santiago Velez wrote:
> Interesting comments,
> Any reviews on the recently released IBPSA's first book :
> "Building Performance Simulation for Design and Operation
> Edited byJan L.M. Hensen, Roberto Lamberts" ?
>
> Thanks,
>
> Santiago.
> *
> *
> 2012/3/5 Contoyannis, Dimitrios AEC
> <DContoyannis at archenergy.com
> <mailto:DContoyannis at archenergy.com>>
>
> The COMNET Modeling Guidelines & Procedures provides a
> detailed modeling spec that can be applied to programs
> like LEED (90.1 Appendix G), IRS 179D tax deduction, and
> Design to Earn EnergyStar.____
>
> http://www.comnet.org/mgp-manual____
>
> __ __
>
> __ __
>
> *From:*CleanTech Analytics
> [mailto:jeremiah at cleantechanalytics.com
> <mailto:jeremiah at cleantechanalytics.com>]
> *Sent:* Sunday, March 04, 2012 9:18 PM
> *To:* Pavel Dybskiy
>
>
> *Cc:* bldg-sim at lists.onebuilding.org
> <mailto:bldg-sim at lists.onebuilding.org>
> *Subject:* Re: [Bldg-sim] Building Energy Modeling
> Guidelines____
>
> __ __
>
> Gentelmen, ____
>
> As a self educated Modeler, who takes the task very
> seriously I might add, I encourage you to read the
> publication by the rocky mountain institute on what they
> call "Black Belt Energy Modeling".. And see how you feel
> you rank in the system. (I would say I am a purple belt)
> ____
>
> __ __
>
> Check this link
> http://www.rmi.org/Content/Files/Black%20Belt%20Modeling%20Matrix%20RMI%2008-27-10.pdf____
>
> __ __
>
> Or see attachment for the full pdf,____
>
> __ __
>
> Black Belt Energy Modeling1____
>
> The concept of black belt energy modeling arose from a
> need to set forth____
>
> expectations, training materials, and professional
> development paths for learning____
>
> this specialized skill. While contributions can be made
> at many levels, becoming a____
>
> master requires a depth and breadth of knowledge
> pertaining to engineering,____
>
> building science and energy simulation tools. The Black
> Belt Energy Modeling____
>
> Matrix presented below outlines a spectrum of modeling
> capabilities – from trainee____
>
> to master – along with the associated skills and
> background knowledge to support____
>
> success.____
>
> The framework and content of the matrix are based on
> providing integrated design____
>
> assistance as typically delivered to the private sector.
> Thus the outline may not align____
>
> well to other applications. It does not reflect the
> benefits of a streamlined BIM____
>
> process or software that automatically generates a
> minimally code‐compliant____
>
> building model.____
>
> 1 Concept developed by Ellen Franconi, PhD, of the Rocky
> Mountain Institute. These materials are____
>
> copyrighted through a Creative Commons License, which
> allows use and distribution as long as credit is____
>
> given to the original author.____
>
> Black Belt Energy Modeling Matrix____
>
> Belt Capabilities Examples Background____
>
> Knowledge2____
>
> Trainee____
>
> White ·Collect modeling____
>
> input data____
>
> ·Gather information____
>
> needed for____
>
> characterizing the____
>
> building from____
>
> construction____
>
> documents,____
>
> narratives, survey____
>
> data, etc.____
>
> ·Basic engineering____
>
> methods, units,____
>
> conversions____
>
> ·Reading construction____
>
> drawings____
>
> ·Familiarity with____
>
> construction materials,____
>
> methods, and____
>
> mechanical systems____
>
> ·Familiarity with space____
>
> requirements as____
>
> outlined in Standards____
>
> (supply flow rates,____
>
> outdoor air, lumen____
>
> levels)____
>
> Yellow ·Perform input data____
>
> calculations____
>
> ·Convert data collected____
>
> from various sources____
>
> to a form used by the____
>
> simulation program____
>
> (fan power____
>
> calculations, EER to____
>
> EIR calculations,____
>
> window COG U‐value____
>
> to overall U‐value,____
>
> etc.)____
>
> ·Spreadsheets____
>
> ·Building load____
>
> calculation procedures____
>
> ·Mechanical system____
>
> basics____
>
> Orange ·Develop building____
>
> geometry and zoning____
>
> ·Import AutoCAD files____
>
> and manipulate as____
>
> needed to incorporate____
>
> into modeling____
>
> software____
>
> ·Develop zoning based____
>
> on thermal block____
>
> concepts____
>
> ·Finalize zoning after____
>
> master modeler____
>
> review____
>
> ·Computer drawing____
>
> programs as applicable____
>
> ·Basic heat transfer____
>
> ·Basic thermodynamics____
>
> ·Basic mechanical____
>
> system design____
>
> concepts____
>
> 2 Background knowledge for a belt includes that for
> lower-level belts____
>
> Belt Capabilities Examples Background____
>
> Knowledge2____
>
> Technician____
>
> Green ·Create building input____
>
> file using software____
>
> wizard____
>
> ·Use modeling____
>
> software graphical____
>
> user interface and____
>
> complete basic____
>
> building model based____
>
> on proposed design,____
>
> project input data and____
>
> software default____
>
> values____
>
> ·Building science____
>
> (envelope, lighting,____
>
> electrical, mechanical,____
>
> renewable building____
>
> systems)____
>
> Blue ·Build minimally‐code____
>
> compliant building____
>
> model____
>
> ·Modify proposed____
>
> design model to____
>
> characterize____
>
> minimally‐compliant____
>
> building in adherence____
>
> to the referenced____
>
> method____
>
> ·Reference Standards____
>
> (ASHRAE 90.1 ‐____
>
> Performance Rating____
>
> Method, ASHRAE 62.1,____
>
> COMNET)____
>
> Core Analyst____
>
> Purple ·Perform parametric____
>
> analysis for straight____
>
> forward design____
>
> alternates____
>
> ·Review predicted____
>
> energy use by end____
>
> use and costs for____
>
> reasonableness____
>
> ·Complete utility and____
>
> end‐use level____
>
> calibration of existing____
>
> building models____
>
> ·Outline energy____
>
> conservation____
>
> measures applicable____
>
> to the project____
>
> ·Characterize the____
>
> measures for____
>
> modeling____
>
> ·Use modeling____
>
> software parametric____
>
> capabilities____
>
> ·For an existing____
>
> building, reconcile____
>
> actual with predicted____
>
> utility resource use____
>
> through repeated____
>
> comparison and gross____
>
> model adjustment____
>
> ·Actual building energy____
>
> consumption by end____
>
> use for different types____
>
> of buildings and____
>
> systems____
>
> ·Energy efficiency____
>
> measures and their____
>
> performance____
>
> characterization____
>
> ·Modeling software____
>
> commands and____
>
> keywords____
>
> ·Utility rate structures____
>
> Belt Capabilities Examples Background____
>
> Knowledge2____
>
> Brown ·Perform modeling of____
>
> complex features,____
>
> systems or____
>
> components not____
>
> readily characterized____
>
> in the software____
>
> ·Complete detailed____
>
> quality assurance____
>
> review____
>
> ·Complete system____
>
> level calibration of____
>
> existing building____
>
> models____
>
> ·Make the most of____
>
> existing software____
>
> capabilities to model____
>
> UFAD, chilled beams,____
>
> make‐up air units, slab____
>
> losses, etc.____
>
> ·Use detailed output____
>
> reports and postprocessing____
>
> tools to____
>
> perform a reality____
>
> check on component____
>
> and system‐level____
>
> results/metrics.____
>
> ·Advanced heat transfer____
>
> ·Advanced____
>
> thermodynamics____
>
> ·Advanced building____
>
> science____
>
> ·IPMVP/EVO concepts____
>
> including balancing risk____
>
> with value____
>
> Master____
>
> Red ·Understand the____
>
> engineering____
>
> algorithms used by____
>
> the software and____
>
> modify modeling____
>
> input/methods to____
>
> improve input____
>
> characterizations____
>
> ·Use supplemental____
>
> detailed analysis to____
>
> support simulation____
>
> software workarounds____
>
> or short cuts.____
>
> ·Use supplemental CFD____
>
> modeling results to____
>
> characterize impact of____
>
> natural ventilation____
>
> strategy. Build an____
>
> hourly infiltration____
>
> schedule to mimic CFD____
>
> results and____
>
> incorporate into____
>
> whole‐building model.____
>
> ·Deep knowledge of____
>
> modeling software____
>
> ·Experience applying____
>
> heat transfer and____
>
> thermodynamic____
>
> algorithms related to____
>
> building science____
>
> Black ·Balance modeling____
>
> level of detail against____
>
> accuracy of results____
>
> needed to support____
>
> decision making____
>
> ·Provide qualitative____
>
> assessments of design____
>
> options and conduct____
>
> limited modeling as____
>
> needed____
>
> ·Vast project modeling____
>
> experience____
>
> ·Understanding of____
>
> application challenges____
>
> and actual achieved____
>
> performance____
>
> Black Belt Energy Modeling Matrix for PowerPoint
> Presentations____
>
> Belt Capabilities____
>
> Trainee____
>
> White ·Collect modeling input data____
>
> Yellow ·Perform input data calculations____
>
> Orange ·Develop building geometry and zoning____
>
> Technician____
>
> Green ·Create building input file using software wizard____
>
> Blue ·Build minimally‐code compliant building model____
>
> Core____
>
> Analyst____
>
> Purple ·Review results for reasonableness____
>
> ·Complete calibrations____
>
> Brown ·Perform complex modeling____
>
> ·Complete detailed QC____
>
> ·Complete system level calibration____
>
> Master____
>
> Red ·Understand the algorithms____
>
> ·Use supplemental analysis____
>
> Black ·Balance modeling level of detail against accuracy
> of____
>
> results needed to support decision making____
>
> __ __
>
> On Sun, Mar 4, 2012 at 5:40 PM, Pavel Dybskiy
> <pdybskiy at gmail.com <mailto:pdybskiy at gmail.com>> wrote:____
>
> Good analogy in case ... if the modeler's job is to run
> a model developed by an expert, and only change weather
> files and sometimes windows' size and temperature set
> point :) ____
>
> Pavel ____
>
> __ __
>
> On Sun, Mar 4, 2012 at 7:14 PM, Hussein Abaza
> <ahussein at spsu.edu <mailto:ahussein at spsu.edu>> wrote:____
>
> I think modeling is one thing, and understanding the
> causes and results when modeling is something else. It
> is like the X-ray technician and the doctor who look at
> the X-ray image to interpret it. Yes, we need
> professional modeler, but we also need building
> technology experts who can derive
> meaningful information from the energy model to evaluate
> and improve the design. Otherwise, it will be shooting
> in the dark. ____
>
>
> ----- Original Message -----
> From: "Jeff Haberl" <jhaberl at tamu.edu
> <mailto:jhaberl at tamu.edu>>
> To: "Pavel Dybskiy" <pdybskiy at ryerson.ca
> <mailto:pdybskiy at ryerson.ca>>
> Cc: bldg-sim at lists.onebuilding.org
> <mailto:bldg-sim at lists.onebuilding.org>
> Sent: Sunday, March 4, 2012 6:05:50 PM GMT -05:00
> US/Canada Eastern
> Subject: Re: [Bldg-sim] Building Energy Modeling
> Guidelines____
>
> O.K.____
>
> ____
>
> Here goes...____
>
> ____
>
> Jeff____
>
> ____
>
> ------------------------------------------------------------
>
> *From:*pdybskiy at gmail.com <mailto:pdybskiy at gmail.com>
> [pdybskiy at gmail.com <mailto:pdybskiy at gmail.com>] on
> behalf of Pavel Dybskiy [pdybskiy at ryerson.ca
> <mailto:pdybskiy at ryerson.ca>]
> *Sent:* Sunday, March 04, 2012 3:48 PM
> *To:* Jeff Haberl
> *Cc:* Paul Carey; 韩星; Ellen Franconi;
> bldg-sim at lists.onebuilding.org
> <mailto:bldg-sim at lists.onebuilding.org>
> *Subject:* Re: [Bldg-sim] Building Energy Modeling
> Guidelines____
>
> Jeff, ____
>
> __ __
>
> 1) Is it correct to say that any problem discussed on
> this list can be answered by referring to some of
> sources that were just mentioned?____
>
> ____
>
> I have always found that the sample files that come with
> DOE-2 and EQUEST provide advise on how to model 90% of
> most buildings. The 10% would include things that can't
> be modeled well with DOE-2 and/or EQUEST
> including: atriums, borrowed-lite windows (i.e.,
> glass on an inside partition), courtyard buildings with
> interior gardens (i.e., evaporative cooling that leads
> to different temps in the courtyard -- see John Reynolds
> book). If one adds the 17 DOE EnergyPlus files, then you
> could make that 95%.____
>
> ____
>
> 2) More general.. Can you give an estimate on how many
> professionals in BEM community (ten, hundred,
> thousand) are, let's say, 100% educated,
> 'self-sufficient', capable of demonstrating
> the ultimate level of knowledge?____
>
> ____
>
> Whew! I think there are about 100+ or so ASHRAE
> Certified BEM modelers...which grows every month.
> Conservatively, if you doubled or tripled that number to
> include good modelers that have not taken the exam, then
> you might have a few hundred folks that are certified or
> equivalent.____
>
> ____
>
> If you want to know those who are capable of
> demonstrating the ultimate knowledge, you'd have to be
> code-specific, and then I would guess there are probably
> less than 20 persons per code or less that really know
> what they are doing well enought to write rewrite the
> code (i.e., DOE-2), or edit the FORTRAN and recompile
> the code. Unfortunately, many of the folks who wrote the
> original algorithms for DOE-2 and BLAST (a part of
> EnergyPlus) are no longer around.____
>
> ____
>
> In the case of EnergyPlus, I would guess there are maybe
> 20 people that really know the code well enough to edit
> it and/or write new modules. Obviously, those who worked
> on it, and a few more, that's about it.____
>
> ____
>
> For TRNSYS, the number is probably smaller. In the U.S.
> the source of most knowledge about TRNSYS is in
> Wisconsin (i.e., TESS or UofW-M).____
>
> ____
>
> 3) More specifically.. From your experience, what is an
> average percentage of graduates from your school who
> becomes an expert in BEM? ____
>
> ____
>
> I've always believed that it takes about 10 years of
> constant use to become expert. I educate about 10 to 20
> persons per year, and have done so for 27 years. So,
> about 1/2 of my students may or may not have been
> praticing for 10 years, which brings them into the realm
> of becoming expert. Our current staff at the ESL who
> work on our code-compliant web-based calculator are all
> expert level (...they now teach me!).____
>
> 4) More on this... How many BEM schools are there in US?
> ____
>
> ____
>
> I'm sure I'll insult someone here...____
>
> ____
>
> Can you name them? ____
>
> I can name schools where I know folks: MIT, PSU, TAMU,
> UT, OSU, CU, UC Berkeley, UofI, ASU, UofW-Milwaukee,
> UofW-Madison, UofW-Milwaukee, Purdue,UPenn, Cornell,
> CUNY, U.Kansas...and others.____
>
> ____
>
> Jeff____
>
> ____
>
> +++++++++++++++++++++++++++++++++++++++++++++++++++____
>
>
> Thank you,____
>
> __ __
>
> Pavel Dybskiy
>
> ____
>
> 2012/3/4 Jeff Haberl <jhaberl at tamu.edu
> <mailto:jhaberl at tamu.edu>>____
>
> Ellen,____
>
> ____
>
> Here's a few more:____
>
> ____
>
> 1. In a way the sample files that come with DOE-2.1e are
> showing you examples of buildings that LBNL assembled to
> go with DOE-2. You can view these with DrawBDL. However,
> there is only limited text that explains he intent of
> the file, and now guideline so to speak about modeling a
> building, in general.____
>
> ____
>
> In a similar fashion, EQUEST comes with input files that
> you can view as well that pretty much cover the full
> range of building types.____
>
> ____
>
> Finally, the DOE EnergyPlus standard 17 building
> type files (that came originally from Joe Huang I'm
> told) are also examples of how to model different
> building types. ____
>
> ____
>
> There are also the books by Joe Clarke, Godfried
> Augenbroe, Jan Hensen/Roberto Lambert on simulation that
> provide varying advice on simulation.____
>
> ____
>
> Also, TRNSYS has lots of files in their library that
> show how to model different things (mostly systems),
> that are useful as well.____
>
> ____
>
> Problem is with any guide, anywhere is that, at
> some point, is has to be specific to a particular
> simulation program, or else it becomes so general that
> it loses it meaning.____
>
> ____
>
> If you want something that is really interesting, look
> at the 1958 ASHRAE paper by Buchberg that talks about
> modeling a one room hut using an analog electrical
> circuit...this was the start of it all. ____
>
> ____
>
> Jeff____
>
> ____
>
> ____
>
> 8=! 8=) :=) 8=) ;=) 8=) 8=( 8=) 8=() 8=) 8=|
> 8=) :=') 8=)8=?
>
> Jeff S. Haberl, Ph.D.,P.E.,
> FASHRAE..............jhaberl at tamu.edu
> <mailto:FASHRAE..............jhaberl at tamu.edu>
>
> Professor............................................................Office
> Ph: 979-845-6507
>
> Department of
> Architecture.............................Lab Ph:979-845-6065
>
> Energy Systems
> Laboratory.............................FAX: 979-862-2457
>
> Texas A&M
> University.....................................77843-3581
>
> College Station, Texas, USA,
> 77843..................URL:www.esl.tamu.edu
> <http://www.esl.tamu.edu>
>
> 8=/ 8=) :=) 8=) ;=) 8=) 8=() 8=) :=) 8=) 8=!
> 8=) 8=? 8=)8=0____
>
> ------------------------------------------------------------
>
> *From:*bldg-sim-bounces at lists.onebuilding.org
> <mailto:bldg-sim-bounces at lists.onebuilding.org>
> [bldg-sim-bounces at lists.onebuilding.org
> <mailto:bldg-sim-bounces at lists.onebuilding.org>] on
> behalf of Paul Carey [paul at zed-uk.com
> <mailto:paul at zed-uk.com>]
> *Sent:* Sunday, March 04, 2012 2:53 AM
> *To:* 韩星; Ellen Franconi
> *Cc:* bldg-sim at lists.onebuilding.org
> <mailto:bldg-sim at lists.onebuilding.org>
> *Subject:* Re: [Bldg-sim] Building Energy Modeling
> Guidelines____
>
> Ashrae 90.1 isn't a guideline? Its a set of massively
> prescriptive and defined rules for assessing buildings
> against benchmark buildings.
>
> We have a similar document to some extent in the UK. The
> national calculation methodology document that
> accompanies the iSBEM energy calculation tool available
> from the BRE outlines how to model in accordance with UK
> regulations or at least it does to some extent.
>
> Ok whilst writing this I've altered my opinions and so
> both are probably worth adding to list as they do have
> some useful information on how to define zones, etc
> rather than just being code style documents.
>
> Kind regards
>
> Paul
>
>
>
> Sent from my HTC
>
> Dr Paul Carey
> Director
>
> Zero Energy Design Ltd
> 10a Portland Place
> 2-22 Mottram Road
> Stalybridge
> Cheshire
> UK
> SK15 3AD
>
> Tel - +44 161 3386200
> Mob - +44 789 4098012
> Email - paul at zed-uk.com <mailto:paul at zed-uk.com>
>
>
>
> ----- Reply message -----
> From: "韩星" <foolishstar at 163.com
> <mailto:foolishstar at 163.com>>
> Date: Sun, Mar 4, 2012 03:02
> Subject: [Bldg-sim] Building Energy Modeling Guidelines
> To: "Ellen Franconi" <efranconi at rmi.org
> <mailto:efranconi at rmi.org>>
> Cc: <bldg-sim at lists.onebuilding.org
> <mailto:bldg-sim at lists.onebuilding.org>>
>
>
> Of course ASHRAE 90.1 APPENDIX G is the most popular
> guideline I think
>
>
>
>
> At 2012-03-04 06:05:51,"Ellen Franconi"
> <efranconi at rmi.org <mailto:efranconi at rmi.org>> wrote:
> I am compiling a list of published Building Energy
> Modeling Guidelines. I know of a few and was hoping to
> get some help from all of you to fill it out. This is
> what I know of:
>
> 1) CIBSE Applications Manual AM11: 1998, Building Energy
> and Environmental Modelling. The manual is available to
> members of the United Kingdom organization - the
> Chartered Institution of Building Services (CIBSE).
>
> 2) From the Colorado Governor's Energy Office, ENERGY
> MODELING: A GUIDE FOR THE BUILDING PROFESSIONAL. See
> http://rechargecolorado.org/images/uploads/pdfs/Energy_Modelling_062411.pdf
>
> 3) AIA Modeling Guidelines (believe there is a draft out
> for public review) but what I find on their website is:
> An Architects Guide to Integrated Modeling Within the
> Design Process
>
> 4) GSA BIM to BEM also out for public review,see:
> http://www.gsa.gov/portal/content/105075
>
> 5) ASHRAE Research Project 1468 BIM to BEM,
>
> What have others come across?
>
> --
> Ellen Franconi, PhD, LEED AP, BEMP
> Senior Consultant, Built Environment Team
>
> Rocky Mountain Institute
> 1820 Folsom Street
> Boulder, CO 80302
> 303.567.8609 (Desk)
> 303.245.7213 (Fax)
>
> Rocky Mountain Institute drives the efficient and
> restorative use of
> resources, creating a world thriving, verdant, and
> secure, for all, for ever.
>
> http://www.rmi.org
>
> ____
>
>
> _______________________________________________
> Bldg-sim mailing list
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> To unsubscribe from this mailing list send a blank
> message to BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
> <mailto:BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG>____
>
>
>
> ____
>
> __ __
>
> --
> Best Regards,
>
> Pavel Dybskiy
> M.A.Sc <http://M.A.Sc>. Candidate, Department of
> Architectural Science
> Faculty of Engineering, Architecture and Science,
> Ryerson University
> E-mail: pdybskiy at ryerson.ca <mailto:pdybskiy at ryerson.ca>;
> telephone: 647-984-4940 <tel:647-984-4940>____
>
>
> _______________________________________________ Bldg-sim
> mailing list
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> To unsubscribe from this mailing list send a blank
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> <mailto:BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG>
>
> -- ____
>
> *Dr. Hussein Abaza, Assistant Professor*____
>
> *Construction Management Department *____
>
> *SCHOOL OF ARCHITECTURE’*____
>
> *CIVIL ENGINEERING TECHNOLOGY*____
>
> * And CONSTRUCTION*____
>
> 1100 South Marietta Parkway, Marietta, GA 30060-2896____
>
> Website: www.spsu.edu/cost <http://www.spsu.edu/cost>
> Tel: 678-915-3719 <tel:678-915-3719> Fax: 678-915-4966
> <tel:678-915-4966>____
>
> E-mail: ahussein at spsu.edu <mailto:ahussein at spsu.edu>____
>
> __ __
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