[Bldg-sim] Custom Weather Data into Energy Plus - Question on Validating Energy Models
Hayes Zirnhelt
hzirnhelt at hotmail.com
Mon Apr 19 16:32:09 PDT 2010
Hello,
Does anyone know how to enter custom weather data into the .epw weather files that Energy Plus uses? I'm using DesignBuilder to run Energy Plus for a research project on solar greenhouse assisted biogas digesters. I originally modelled the greenhouse using a WYEC2 file, but I want to put in recent data for solar radiation and outdoor air temperature obtained from the test period so that I can assess the accuracy of the model. (I tried downloading recent weather data from the energy plus website but that didn't work).
Thanks for the help!
Hayes Zirnhelt4th Year Integrated Engineering Student, UBC604 222 9494
From: bldg-sim-request at lists.onebuilding.org
Subject: Bldg-sim Digest, Vol 29, Issue 18
To: bldg-sim at lists.onebuilding.org
Date: Mon, 19 Apr 2010 12:01:13 -0700
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--Forwarded Message Attachment--
From: tiwari.sambhav at gmail.com
To: bldg-sim at lists.onebuilding.org
Date: Mon, 19 Apr 2010 11:54:54 +0530
Subject: [Bldg-sim] Outside air requirements
Hi All,
The value of fresh air cfm/person should be taken as per ASHRAE 62 or this value should be as per the design in proposed case. and how much exactly should we have this value.
Thanks
Sambhav.
--Forwarded Message Attachment--
From: jacobfaiola at yahoo.com
To: bldg-sim at lists.onebuilding.org
Date: Mon, 19 Apr 2010 06:38:40 -0700
Subject: [Bldg-sim] zoning for a high accuracy single family dwelling
Hi all;
I am building an eQUEST model for an international net-zero home design competition, and I am trying to maximize accuracy. Does it make sense to zone each room individually, and manually characterize the behavior of all the appliances (they will be high efficiency)? Or should I just zone the whole house as a single-family dwelling and consider eQUEST's default loads to be close enough? The concern is that a lot of special appliances will be used and it seems like eQUEST's defaults might be inaccurate.
thanks,
Jacob
--Forwarded Message Attachment--
From: thomasv at iit.edu
CC: bldg-sim at onebuilding.org
To: YJHuang at whiteboxtechnologies.com
Date: Mon, 19 Apr 2010 09:23:23 -0500
Subject: Re: [Bldg-sim] White Box Technologies announces the establishment of a Center for Open Source Building Simulations
Joe:
What would be the source of funding for the �Center for Open Source Building Energy Simulations (COSBES)�? A non-profit organization of architectural engineering design firms (AEDs) could support this effort since they are the main users of such programs. There isn't one.
DOE21E should be supported, maintained and enhanced by USDOE and LBNL until AEDs accept Energy-Plus as the replacement program for DOE21E. Several private firms have developed easy to use forms and graphics interfaces to DOE21E. If USDOE and LBNL were to abandon DOE21E, then these private firms will lose their investment. Either USDOE continues developing and maintaining DOE21E, or it should compensate the private firms for their losses.
Attached are my views on energy programs including suggested enhancements to DOE21E. The attachments have been omitted because of their size.
Varkie Thomas
----- Original Message -----
From: Joe Huang <YJHuang at whiteboxtechnologies.com>
Date: Thursday, January 21, 2010 2:52 pm
Subject: [Bldg-sim] White Box Technologies announces the establishment of a Center for Open Source Building Simulations
> Dear Friends and Colleagues,
>
> White Box Technologies wishes to announce its intention to
> establish a
> non-profit Center for Open Source Building Energy Simulations
> (COSBES).
> I admit the title may sound a bit on the grandiose side, but it
> capsulizes my thinking on what may help our little world of
> building
> energy simulations - a non-profit non-commercial center on
> simulation
> programs and resources that's in the public domain.
>
> My initial goals are very modest, but my long-range vision is for
> the
> Center to be capable of significant software development and
> support,
> but always open source. My first steps are simply to maintain an
> open-source version of DOE-2.1E. DOE-2.1E has been effectively
> abandoned
> by LBNL and DOE for close to a decade. I have assurances from LBNL
> that
> it's only a matter of paperwork for them to make the program open
> source, and have communicated to them my intentions without
> receiving
> any objections.
>
> So what would this support consist of, besides making the program
> and
> source code freely available? That would of course depend on the
> public's (your) interest and need, which is one reason for this
> announcement! But for starters, I have a backlog of completed work
> that
> have never been incorporated into the public release version of
> DOE-2.1E, such as two-dimensional and combined response factors
> for
> composite walls, a decent foundation model, and an improved
> weather file
> format. In addition, I'm currently working on contract for ORNL
> to
> incorporate AtticSim into 2.1E. Lastly, I have a license from LBNL
> to
> continue working on my last major work there - a partially-
> completed
> DOE-2 to EnergyPlus translator (doe2ep) that, funding pending, can
> be
> updated to the current EnergyPlus release. Also in the works and
> soon to
> be launched are (1) VisualEPlus, a graphical user interface for
> EnergyPlus done by colleagues in China, and (2) actual-year
> weather data
> service accessing NCDC's massive International Surface Hourly
> (ISH) data
> base.
>
> I had originally thought of calling a meeting at ASHRAE to make
> this
> announcement, but then realized that finding a time to meet at
> ASHRAE is
> an impossibility. However, I would be happy to entertain any
> questions
> and comments while at the conference, where I'll typically be
> found in
> TC 4.7 and 4.2 meetings. For course, I'm also open to questions
> and
> comments posted on BLDG-SIM, although my responses will be
> somewhat delayed.
> --
>
> Joe Huang
> White Box Technologies, Inc.
> 346 Rheem Blvd. Suite 108D
> Moraga CA 94556
> (o) +925 388 0265
> (c) +510 928 2683
> yjhuang at whiteboxtechnologies.com
> www.whiteboxtechnologies.com
>
>
>
>
> --
> Joe Huang
> White Box Technologies, Inc.
> 346 Rheem Blvd. Suite 108D
> Moraga CA 94556
> (o) +925 388 0265
> (c) +510 928 2683
> yjhuang at whiteboxtechnologies.com
> www.whiteboxtechnologies.com
>
> _______________________________________________
> Bldg-sim mailing list
> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
> To unsubscribe from this mailing list send a blank message to
> BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>
--Forwarded Message Attachment--
From: sam.mason at atelierten.com
CC: bldg-sim at onebuilding.org
To: thomasv at iit.edu; YJHuang at whiteboxtechnologies.com
Date: Mon, 19 Apr 2010 08:07:21 -0700
Subject: Re: [Bldg-sim] White Box Technologies announces the establishment of a Center for Open Source Building Simulations
Varkie,
Thank you for your very well composed thoughts on the use of energy
programs. I agree that improving the design process and architectural
and engineering integration is critical to reducing design costs while
still proving energy code and LEED compliance.
The one point of disagreement with your argument is on the final page
where you state, "There is presently no group of forum of any kind
representing AEDs. Every group (IBPSA, IAI, ASHRAE energy research and
computer committees, etc.) are dominated by academia and research
institutions."
People from AED firms have been involved in IBPSA and ASHRAE for many
years across all disciplines. While many research and academic
institutions are involved with these organizations, AED firms have
always been a part of the discussion and will have increased involvement
as energy use in buildings and related carbon emissions become more
important to reducing the built environment's impact on the natural
environment. As you point out, communication and knowledge sharing
between the design community and research/academic community is the
logical next step. In many cases this is already happening, particularly
on the residential side, but maybe what we need is a conduit for
connecting these two groups on a larger scale.
Just my two cents. Again thank you for your thoughts.
Sam
--
Sam Mason
Atelier Ten
-----Original Message-----
From: bldg-sim-bounces at lists.onebuilding.org
[mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Varkie C
Thomas
Sent: Monday, April 19, 2010 10:23 AM
To: Joe Huang
Cc: bldg-sim at onebuilding.org
Subject: Re: [Bldg-sim] White Box Technologies announces the
establishment of a Center for Open Source Building Simulations
Joe:
What would be the source of funding for the Center for Open Source
Building Energy Simulations (COSBES) ? A non-profit organization of
architectural engineering design firms (AEDs) could support this effort
since they are the main users of such programs. There isn't one.
DOE21E should be supported, maintained and enhanced by USDOE and LBNL
until AEDs accept Energy-Plus as the replacement program for DOE21E.
Several private firms have developed easy to use forms and graphics
interfaces to DOE21E. If USDOE and LBNL were to abandon DOE21E, then
these private firms will lose their investment. Either USDOE continues
developing and maintaining DOE21E, or it should compensate the private
firms for their losses.
Attached are my views on energy programs including suggested
enhancements to DOE21E. The attachments have been omitted because of
their size.
Varkie Thomas
----- Original Message -----
From: Joe Huang <YJHuang at whiteboxtechnologies.com>
Date: Thursday, January 21, 2010 2:52 pm
Subject: [Bldg-sim] White Box Technologies announces the establishment
of a Center for Open Source Building Simulations
> Dear Friends and Colleagues,
>
> White Box Technologies wishes to announce its intention to establish a
> non-profit Center for Open Source Building Energy Simulations
> (COSBES).
> I admit the title may sound a bit on the grandiose side, but it
> capsulizes my thinking on what may help our little world of building
> energy simulations - a non-profit non-commercial center on simulation
> programs and resources that's in the public domain.
>
> My initial goals are very modest, but my long-range vision is for the
> Center to be capable of significant software development and support,
> but always open source. My first steps are simply to maintain an
> open-source version of DOE-2.1E. DOE-2.1E has been effectively
> abandoned by LBNL and DOE for close to a decade. I have assurances
> from LBNL that it's only a matter of paperwork for them to make the
> program open source, and have communicated to them my intentions
> without receiving any objections.
>
> So what would this support consist of, besides making the program and
> source code freely available? That would of course depend on the
> public's (your) interest and need, which is one reason for this
> announcement! But for starters, I have a backlog of completed work
> that have never been incorporated into the public release version of
> DOE-2.1E, such as two-dimensional and combined response factors for
> composite walls, a decent foundation model, and an improved weather
> file format. In addition, I'm currently working on contract for ORNL
> to incorporate AtticSim into 2.1E. Lastly, I have a license from LBNL
> to continue working on my last major work there - a partially-
> completed
> DOE-2 to EnergyPlus translator (doe2ep) that, funding pending, can be
> updated to the current EnergyPlus release. Also in the works and soon
> to be launched are (1) VisualEPlus, a graphical user interface for
> EnergyPlus done by colleagues in China, and (2) actual-year weather
> data service accessing NCDC's massive International Surface Hourly
> (ISH) data
> base.
>
> I had originally thought of calling a meeting at ASHRAE to make this
> announcement, but then realized that finding a time to meet at ASHRAE
> is an impossibility. However, I would be happy to entertain any
> questions and comments while at the conference, where I'll typically
> be found in TC 4.7 and 4.2 meetings. For course, I'm also open to
> questions and comments posted on BLDG-SIM, although my responses will
> be somewhat delayed.
> --
>
> Joe Huang
> White Box Technologies, Inc.
> 346 Rheem Blvd. Suite 108D
> Moraga CA 94556
> (o) +925 388 0265
> (c) +510 928 2683
> yjhuang at whiteboxtechnologies.com
> www.whiteboxtechnologies.com
>
>
>
>
> --
> Joe Huang
> White Box Technologies, Inc.
> 346 Rheem Blvd. Suite 108D
> Moraga CA 94556
> (o) +925 388 0265
> (c) +510 928 2683
> yjhuang at whiteboxtechnologies.com
> www.whiteboxtechnologies.com
>
> _______________________________________________
> Bldg-sim mailing list
> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
> To unsubscribe from this mailing list send a blank message to
> BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG
>
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