[BLDG-SIM] EnXML - A Schema for Energy Simulation Data Exchange
Rob Hitchcock
RJHitchcock at lbl.gov
Thu Apr 27 09:39:49 PDT 2000
Actually, I am hopeful that aecXML will build on the "tree" that is already in
the IFC model. It is the leaves of the IFC model that need further
development. I think that aecXML schema can help this development if done in
parallel. Also, I am not yet convinced that XML-based data exchange is
appropriate for all details of a building project. I see equipment and other
component manufacturers gaining the most from XML-based data exchange -
information-rich catalogs and e-commerce transactions. Of course, this assumes
that manufacturers (e.g., chillers) will become willing to share their
performance data.
Rob Hitchcock
====================
Robert Sonderegger wrote:
> I find this discussion fascinating and encouraging. My only 2 cents are
> that this effort should start at the top of the "tree," with the building,
> sites, plant, system, lighting, equipment, etc., not at the bottom with
> envelope materials and assemblies.
>
> All may be eventually be expressed in EnXML (lose the "er"), but it is the
> former that will first catch the imagination of those who need to "buy in"
> to make this effort fly. In the eyes of the moneyed decisionmakers, it's
> chillers and lighting fixtures that consume operating $, not envelope
> materials.
>
> Robert Sonderegger
>
> -----Original Message-----
> From: Gowri, Krishnan [mailto:krishnan.gowri at pnl.gov]
> Sent: Wednesday, April 26, 2000 3:09 PM
> To: BLDG-SIM at gard.com
> Subject: [BLDG-SIM] EnerXML - A Schema for Energy Simulation Data Exch
> ange
>
> I expect the EnerXML initiative to build consensus on the tag terminology to
> standardize schema definitions. It will be consistent with the IAI/IFC
> model
> and build off of any published domain extensions or XML schemas available.
> I
> have made an IAI/aecXML working group proposal to the Design/Spec group to
> include energy simulation data. My focus currently is the representation of
> thermal properties data for envelope materials and assemblies. If you are
> already using schemas or have suggestions for parts of schemas, please let
> me
> know and I will incorporate them and make it available through aecXML
> submissions and BizTalk/OASIS servers.
>
> - krishnan
>
> -----Original Message-----
> From: Rob Hitchcock [SMTP:RJHitchcock at lbl.gov]
> Sent: Wednesday, April 26, 2000 1:23 PM
> To: BLDG-SIM at gard.com
> Subject: [BLDG-SIM] EnerXML - A Schema for Energy Simulation
> Data
> Exchange
>
> I agree that library/catalog performance specs for building
> components like equipment and materials makes a lot of sense.
> This would support e-commerce applications, and the ability to
> search the web for component data that could be directly imported
> into energy simulation models.
>
> I feel that this work should be coordinated with the aecXML effort
> underway within the International Alliance for Interoperability
> (IAI). See http://www.aecxml.org/index2.htm for more
> information. We are on the verge of achieving some level of
> software interoperability with the IFC data model being developed
> by the IAI. It would be a shame to develop an XML schema that did
> not build on this work.
>
> Rob Hitchcock
> Lawrence Berkeley National Lab
> ======================
> Jason Glazer wrote:
>
> > Along with weather, three other areas related to building
> > simulation that make sense to have an XML format for are:
> >
> > a) Equipment performance specifications - nominal and part
> > load and temperature correction curves,
> >
> > b) Utility rate models - block charges, time of use rates,
> > and applicablity, and
> >
> > c) Materials/constructions descriptions for opaque and
> > transparent building surfaces.
> >
> > These could be integrated into an overall "enerXML" but
> > since they could also benefit other types of software they
> > may be best being independent schemas.
> >
> > Jason
> >
> > On 26 Apr 2000, at 14:32, Larry Degelman wrote:
> >
> > > Has any XML format been established yet for weather data
> > > used for energy simulation software? We've got several
> > > weather data formats out there, and it would be convenient
> > > if these formats were made neutral by embedding the
> > > self-describing variables and data formats right in the
> > > file. This seems like it would be the easiest to accomplish
> > > and the most readily used database.
> > >
> > > If not much has been done on this, I would be glad to work
> > > on it this summer. What rules and guidelines are available
> > > for developing XML schemas?
> > >
> > > Larry D
> > >
> > > ************************************************************
> > > **************** * Larry O. Degelman, P.E., Professor
> > > e-mail: larry at taz.tamu.edu Department of Architecture
> > > Phone: +1-979-845-1891 Texas A&M University
> > > Fax: +1-979-862-1571 College Station, TX
> > > 77843-3137 Download ENER-WIN at:
> > > http://taz.tamu.edu/~energy/enerwin.html
> > > ************************************************************
> > > **************** **
> > >
> > >
> > > ----- Original Message -----
> > > From: "Gowri, Krishnan" <krishnan.gowri at pnl.gov>
> > > To: <BLDG-SIM at gard.com>
> > > Sent: Wednesday, April 26, 2000 1:28 PM
> > > Subject: [BLDG-SIM] EnerXML - A Schema for Energy Simulation
> > > Data Exchange
> > >
> > >
> > > >
> > > > I would like to propose the development of an XML schema
> > > > for marking up
> > > Energy
> > > > simulation data files that can be easily transferred
> > > > between simulation
> > > software
> > > > and other applications. For those unfamiliar with XML,
> > > > data files in XML
> > > are
> > > > simply ASCII files containing tags that make the data
> > > > self-describing, if
> > > the
> > > > schema definitions are standardized and understandable.
> > > >
> > > > If you are an energy software developer and interested in
> > > > supporting or participating in the schema development
> > > > effort, please let me know. At present, this is a
> > > > voluntary effort aimed at interoperable and neutral
> > > data
> > > > representation for building energy software data.
> > > >
> > > > Krishnan Gowri, Ph.D., PE
> > > > Pacific Northwest National Lab.
> > > >
> >
> > =========================================================
> > Jason Glazer, P.E. mailto:jglazer at gard.com 847 698 5686
> > GARD Analytics - http://www.gard.com/
> > Building Energy Simulation and Analysis
> > List Administrator & 90.1 Consultant
> >
> > ======================================================
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