[Equest-users] Parametric runs

[Michael Wilson]

Hi Stefano. Switching is under window properties, Blinds tab. See graphic
below.

 

To do it in Excel requires a bit of playing around with the formatting. Once
you've done that you can save the Excel sheet as a prn file, which will turn
it into text and it can be copied into the inp file and re-imported. But
getting the formatting straight can be a bit of work.

 

Mike

 

 



 

 

 

 

 

Michael Wilson, P.Eng., Enerficiency Consulting

PO Box 1911 - 458 Abbs Rd., Gibsons, BC  V0N 1V0    |    604-886-9864    |
www.enerficiency.ca

 

From: Stefano Moret [mailto:smoret at ucdavis.edu] 
Sent: March-20-12 11:58 AM
To: mwilson at enerficiency.ca
Cc: equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] Parametric runs

 

Dear Wesley and Michael,

 

Thanks for your suggestions. I have been looking into the window/drapes
functions, i.e. the possibility of changing blind positions over 3 different
seasons. I didn't find, though, the possibility of switching on ambient
conditions, as suggested by Michael. How can you do that?

 

It's quite interesting the possibility of uploading an annual hourly
schedule into the software. Do you think I can generate an excel schedule
setting different values for some parameters (window properties such as VLT
and SHGC) and import them into E-quest to run my model? It's not a perfect
solution but I could have for sure a good estimate of the savings.

 

Thanks, Stefano

 

From: Michael Wilson [mailto:mwilson at enerficiency.ca] 
Sent: Sunday, March 18, 2012 10:18 AM
To: Stefano Moret
Cc: equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] Parametric runs

 

Hi Stefano. Within the Window, under Blinds/Drapes-Switching, there is an
option for switching of window properties. This is to represent windows with
electrochromic switching. As far as I know (I've never actually used it) it
can only switch between two sets of window properties. But it can be
switched on various ambient conditions (solar gain, temperature, etc).

 

If thats not sophisticated enough, you could try using an 8760 hour schedule
generated in Excel. Output all the data you need (OAT, solar gain, etc),
then do your calculations in Excel to generate your shading schedule and
import it into your file.

 

Or if you really want a function, Doe2.1e allows them. But they're not very
user friendly...

 

Mike

 

Michael Wilson, P.Eng., Enerficiency Consulting

PO Box 1911 - 458 Abbs Rd., Gibsons, BC  V0N 1V0    |    604-886-9864    |
www.enerficiency.ca

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Stefano
Moret
Sent: March-15-12 2:12 PM
To: Wesley S. Care; CleanTech Analytics; yjhuang at whiteboxtechnologies.com
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Parametric runs

 

Thanks Wesley,

 

Nice to know that I can schedule different window properties by schedule,
this is a simplified approach that might give an estimate of the saving.

I was wondering if the software already had a function reproducing basically
what electro-chromic windows do, that's basically maintaining a constant
illuminance level in a room, reducing solar heat gain and light
transmittance accordingly. If not, then it might be an idea to try and
implementing this function, as I reckon it might be useful in various
application.

 

Thanks, regards

 

--

 

Stefano Moret
California Lighting Technology Center <http://cltc.ucdavis.edu/> 
University of California, Davis
633 Pena Drive
Davis, CA 95618

530-747-3846
smoret at ucdavis.edu <mailto:smoret at ad3.ucdavis.edu>  

 

 

 

From: Wesley S. Care [mailto:wesley.care at esdaz.com] 
Sent: Thursday, March 15, 2012 2:04 PM
To: CleanTech Analytics; Stefano Moret; yjhuang at whiteboxtechnologies.com
Cc: equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] Parametric runs

 

Hi Stefano,

 

Before you start trying to recode eQUEST, you might see if the scheduling
options in the Window Properties window will be close enough approximations
for you. The Blinds/Drapes - Switching tab has several options that allow
you to vary conductance, solar transmission, etc. during the course of a
simulation. It's meant to represent variable shading, so you can decide if
that's scientific enough for what you're doing.

 

The only other "easy" way I can think of is to run the model with both (or
all) of the skylight options, and stitch the results together (March through
August with one, the remainder with the other for example). The effect would
be the same as if a guy went up and swapped out the glass one day. You'd
have to lock down equipment sizing and a few other things to make sure
that's the only difference, but still easier than adding your own eQUEST
feature.

 

Maybe you're better with code than me though! Good luck however you decide
to do it.

 

Thanks, 

      Wesley

                  

 <http://www.esdaz.com/> Description: ESDGreenLogoMechanical Engineers +
<http://www.esdaz.com/> Electrical Engineers + Sustainable Design

 

Wesley Care, EIT | Mechanical Project Engineer |
<mailto:wesley.care at esdaz.com> *   <mailto:wesley.care at esdaz.com>
wesley.care at esdaz.com | ( 480.481.4973 | 6 480.481.4903

 

From: CleanTech Analytics [mailto:jeremiah at cleantechanalytics.com] 
Sent: Wednesday, March 14, 2012 3:10 PM
To: smoret at ucdavis.edu; yjhuang at whiteboxtechnologies.com
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Parametric runs

 

You may wish to ask Joe Huang, as if there is anyone who could do this he
would be the one, as he is one of the most knowledgeable in the world so far
as the DOE2 computer code. 

 

Best of luck

 

 

White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
 <mailto:yjhuang at whiteboxtechnologies.com> yjhuang at whiteboxtechnologies.com
 <http://www.whiteboxtechnologies.com/> www.whiteboxtechnologies.com
(o)  <tel:%28925%29388-0265> (925)388-0265
(c)  <tel:%28510%29928-2683> (510)928-2683

 

On Wed, Mar 14, 2012 at 3:04 PM, Stefano Moret <smoret at ucdavis.edu> wrote:

Thanks Jeremiah,

 

I actually don't want to change much to the model itself, I just want to
give different properties to materials (or change components) in different
times of the year. Let's say, I want to use a type of skylight in winter
that's different from the one I use in summer, by changing the model of the
skylight or some of its main parameters. Do you think this might be
possible? Maybe adding some external script?

 

Thanks, Stefano

 

From: CleanTech Analytics [mailto:jeremiah at cleantechanalytics.com] 
Sent: Wednesday, March 14, 2012 2:51 PM
To: Stefano Moret
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Parametric runs

 

I do not believe so, but you can try lots of different configurations that
you either draw, or trace from cad..

On Wed, Mar 14, 2012 at 2:38 PM, Stefano Moret <smoret at ucdavis.edu> wrote:

Hi,

 

I'm new to the use of E-quest, I'm just starting to play around with it by
performing some preliminary simulations.

The reason why I started using it is because of its feature of managing
skylight properties: for a research project I'd like to simulate an "ideal
skylight" solution, which could basically adapt its main properties (VLT and
SHGC) in order to minimize building energy consumption. I've seen there's a
very interesting "parametric run" tool, which can make me able to perform
simulations with different values of these parameters.

My question is: does E-quest support the possibility of writing a function
which changes this values over the run itself with a rule set by the user?
Or, at least, can I set different values at different times of the day?

 

Thanks for your attention, 

Best Regards

Stefano 

 

--

 

Stefano Moret
California Lighting Technology Center <http://cltc.ucdavis.edu/> 
University of California, Davis
633 Pena Drive
Davis, CA 95618

530-747-3846
smoret at ucdavis.edu <mailto:smoret at ad3.ucdavis.edu>  

 

  _____  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1913 / Virus Database: 2114/4866 - Release Date: 03/12/12

  _____  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2012.0.1913 / Virus Database: 2114/4882 - Release Date: 03/20/12

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20120320/e144614a/attachment-0002.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 11535 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20120320/e144614a/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 60591 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20120320/e144614a/attachment-0002.jpeg>