[Equest-users] Window properties bug

[Stefano Moret]

Hi,

I don't know if it happened already to you as well, but when I enter in window properties/switching, if I try to select the glazing to switch to, Equest crashes.
I'm working on a 4GB RAM, 3.16Ghz, Intel core duo Window 7 pc.

Stefano

From: Stefano Moret
Sent: Tuesday, March 20, 2012 12:32 PM
To: 'mwilson at enerficiency.ca'
Cc: equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] Parametric runs

Thanks, I see what you mean, I'll try and use the EMIT schedule generator for that.
For what I see, with shades I can set set a schedule for solar heat gain, and from the daylight tab I can regulate visible light transmittance.
It's nice that you can switch on daylight levels as control parameter, would be nice it to be adapting as electro-chromic windows and not 0/1 as it is here.

Thanks for your inputs, Regards
Stefano

From: Michael Wilson [mailto:mwilson at enerficiency.ca]<mailto:[mailto:mwilson at enerficiency.ca]>
Sent: Tuesday, March 20, 2012 12:12 PM
To: Stefano Moret
Cc: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: RE: [Equest-users] Parametric runs

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


[cid:image001.jpg at 01CD0695.7E47A250]





Michael Wilson, P.Eng., Enerficiency Consulting
PO Box 1911 - 458 Abbs Rd., Gibsons, BC  V0N 1V0    |    604-886-9864    |    www.enerficiency.ca<http://www.enerficiency.ca>

From: Stefano Moret [mailto:smoret at ucdavis.edu]<mailto:[mailto:smoret at ucdavis.edu]>
Sent: March-20-12 11:58 AM
To: mwilson at enerficiency.ca<mailto:mwilson at enerficiency.ca>
Cc: equest-users at lists.onebuilding.org<mailto: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<mailto: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<http://www.enerficiency.ca>

From: equest-users-bounces at lists.onebuilding.org<mailto:equest-users-bounces at lists.onebuilding.org> [mailto:equest-users-bounces at lists.onebuilding.org]<mailto:[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<mailto:yjhuang at whiteboxtechnologies.com>
Cc: equest-users at lists.onebuilding.org<mailto: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<mailto:yjhuang at whiteboxtechnologies.com>
Cc: equest-users at lists.onebuilding.org<mailto: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

[Description: ESDGreenLogo]<http://www.esdaz.com/>Mechanical Engineers + Electrical Engineers + Sustainable <http://www.esdaz.com/> Design

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

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

yjhuang at whiteboxtechnologies.com<mailto:yjhuang at whiteboxtechnologies.com>

www.whiteboxtechnologies.com<http://www.whiteboxtechnologies.com/>

(o) (925)388-0265<tel:%28925%29388-0265>

(c) (510)928-2683<tel:%28510%29928-2683>

On Wed, Mar 14, 2012 at 3:04 PM, Stefano Moret <smoret at ucdavis.edu<mailto: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<mailto:jeremiah at cleantechanalytics.com>]
Sent: Wednesday, March 14, 2012 2:51 PM
To: Stefano Moret
Cc: equest-users at lists.onebuilding.org<mailto: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<mailto: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<tel: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<http://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<http://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/20120322/5e0f1977/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 60591 bytes
Desc: image001.jpg
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20120322/5e0f1977/attachment-0001.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.png
Type: image/png
Size: 11535 bytes
Desc: image002.png
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20120322/5e0f1977/attachment-0001.png>