Need 'realistic' Building Models for E+

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Hi Bldg-sim community,

I am currently doing some work on EnergyPlus with the goal of speeding it
up. My background is in Computer Science.

I'm looking for realistic models that I can input to E+ to help me
understand the areas that need improvement and to better focus my efforts.

Do any of you have any large scale / realistic inputs for EnergyPlus that I
could use? I will keep them confidential within the E+ development team.

Many thanks --

Geof Sawaya

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See the projects described in Table of Contents
http://bepan.info/contents
P - Project Case Studies - eQUEST-Tutor
P - Project Case Studies - eQUEST-DOE21E
P ? Project-Studies ? DOE21E
P ? Projects - to be developed
P ? Projects ? for Teaching by Academia

Try the case studies shown in the page tabs below (they are based on real bldgs but modified & simplified for teaching)
http://bepan.info/proj-bldgs
Proj-11 - Chicago Center Green Technology (CCGT)
http://bepan.info/proj-bldgs/p11-ccgt-doe21e
Proj-12 - Middle School & Community Center (MSCC)
http://bepan.info/proj-bldgs/p12-middle-school
Proj-13 - High-Rise Mixed Use Bldg (HRMU)
http://bepan.info/proj-bldgs/p13-high-rise-bldg

I think that developing the objectives along the lines shown in http://bepan.info/ will be useful for A-E design and education.

Varkie
http://www.iit.edu/arch/faculty/thomas_varkie.shtml

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Varkie,

I think Geof is interested only in EnergyPlus building models, while yours are all in
DOE-2.1E. However, I do applaud your willingness to share publicly such work.

As a secondary note, I do have a doe2ep program that can translate DOE-2.1E inputs to
EnergyPlus 1.4. Anyone interested can e-mail me.

Joe Huang

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Geof,

There's the PNNL ASHRAE model set that you could reference:

http://www.energycodes.gov/development/commercial/90.1_models

My opinion: I did take a look at this around 6 months ago and the model EUI results seemed a little low, but it's a great resource nonetheless.

Vikram Sami, LEED AP BD+C

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Geof,

I agree with Vikram that the PNNL models are a useful resource. A similar set of models (the DOE commercial reference buildings) is also publicly available here:

http://www1.eere.energy.gov/buildings/commercial/ref_buildings.html

Since the models are similar, you might wonder why I suggested these. The reason is that some of the system types change between the new construction (per ASHRAE 90.1-2004) models and the existing building ("post1980" and "pre1980" construction) models, so this would give you a broader set of models. Also, the lighting power is higher, and the infiltration is much higher for these existing building models. This can sometimes make the simulations different enough (warm-up time, HVAC iterations, etc.) that you might want to check with these existing building models, too. If you don't want to look at all of them, then you may just want to do pre1980 in a few cities.

Enjoy!

Kristin Field, NREL

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Depending on the objective of Geof's investigation, I'd like to add a note of caution
about these DOE commercial reference buildings, something that I was involved in first
creating 5 years ago. Although these have evolved substantially beyond the shoeboxes of
the 1990's, they are still prototypical building models that are quite simple in
comparison to models based on real buildings. If your intention is to investigate how
EnergyPlus performs under stress conditions, there are far larger and more complex
realistic building models out there. Unfortunately for Geof, the great majority of them
have been created
using DOE-2 or eQUEST. Over the past year, I've been asked to help convert such models to
EnergyPlus, once by someone at LBNL! Now these are what I would call large building
models, one had over 400 spaces and over 2,000 surfaces.

Joe Huang

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Joe,

I am NOT suggesting looking at the DOE2.1E and eQUEST (DO2.2) input files for conversion to E+. For example use the bldg A-E model for High-Rise Mixed Use Bldg information shown in the case study - http://bepan.info/proj-bldgs/p13-high-rise-bldg - to create the input files for E+.

Download by double clicking on - Proj-13 - eQ-DOE21E - HRMU - High-Rise Mixed-Use Bldg - PDF-Report ? on the page. The eQUEST model was created from the information in this report and from the ACAD file - Proj-13 - eQ-DOE21E - HRMU - High-Rise Mixed-Use Bldg - ACAD-DWG - and not by converting the DOE2.1E input file. I am also attaching the files but it may not go thru because of the size.

All the case study building models in - http://bepan.info/contents - were modified and simplified for teaching by eliminating the details and repetition found in actual A-E drawings, schedules and specifications.

Varkie

Varkie
I think Geof is interested only in EnergyPlus building models, while yours are all in DOE-2.1E. However, I do applaud your willingness to share publicly such work.
As a secondary note, I do have a doe2ep program that can translate DOE-2.1E inputs to EnergyPlus 1.4. Anyone interested can e-mail me.
Joe Huang

On 12/18/2012 8:48 AM, Varkie C Thomas wrote:
See the projects described in Table of Contents
http://bepan.info/contents
P - Project Case Studies - eQUEST-Tutor
P - Project Case Studies - eQUEST-DOE21E
P - Project-Studies - DOE21E
P - Projects - to be developed
P - Projects - for Teaching by Academia
Try the case studies shown in the page tabs below (they are based on real bldgs but modified & simplified for teaching)
http://bepan.info/proj-bldgs
Proj-11 - Chicago Center Green Technology (CCGT)
http://bepan.info/proj-bldgs/p11-ccgt-doe21e
Proj-12 - Middle School & Community Center (MSCC)
http://bepan.info/proj-bldgs/p12-middle-school
Proj-13 - High-Rise Mixed Use Bldg (HRMU)
http://bepan.info/proj-bldgs/p13-high-rise-bldg
I think that developing the objectives along the lines shown in http://bepan.info/ will be useful for A-E design and education.
Varkie
http://www.iit.edu/arch/faculty/thomas_varkie.shtml

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Varkie,

Are you suggesting to create the input files for E+ from the building descriptions
themselves? That would seem like a lot of work, and also very error-prone. I would be
curious to see how doe2ep performs on your 2.1E files, but not curious enough to actually
attempt that right now :-)

Joe Huang

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Thank you, Kristin. Thank you for your thoughts and suggestions -- I'll
give them a try.

Geof

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