[Equest-users] Equest-users Digest, Vol 35, Issue 24
Nick Caton
ncaton at smithboucher.com
Fri Feb 25 07:13:49 PST 2011
Hi Kirti,
I've attached a "mini-guide" I wrote a while back that walks you through the import feature.
I'd suggest going through that, then:
1. Save your current project (model A)
2. Save a copy of your project in a separate directory (model B)
3. Open model B and go back to the wizards. Define the new floor(s) as new shells - pay mind to define their locations in coordinates (XYZ). Delete the other shells you've already got in model A. Follow the guide and ensure model B's shells/HVAC systems all have a unique prefix added.
4. Import model B into model A.
5. Delete any redundant HVAC/Hot Water systems, and reassign to model A's systems as necessary.
Consider that last step #5 there carefully. If this is a very complex model, making that step seem terribly daunting, I would more strongly consider simply working entirely from the wizards and "losing" my detailed inputs, keeping a copy of model A for future reference.
Remember to edit/delete the existing floor/roof surfaces of model A that will be sandwiched by model B's new floors, to avoid doubling your envelope roof/floor loads.
~Nick
NICK CATON, E.I.T.
PROJECT ENGINEER
Smith & Boucher Engineers
25501 west valley parkway
olathe ks 66061
direct 913 344.0036
fax 913 345.0617
www.smithboucher.com
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of kirti pabrekar
Sent: Thursday, February 24, 2011 11:11 PM
To: equest-users at lists.onebuilding.org
Cc: equest-users-request at lists.onebuilding.org
Subject: Re: [Equest-users] Equest-users Digest, Vol 35, Issue 24
hi all,
i have recently begun using equest and have had successfully running small models.
recently while modeling one of my projects, i had to add another floor under the entire model.
firstly i realise that if i go back from the detailed mode to the wizard entries, i loose all my detailed inputs.
secondly if i simulate this model, the results will be far from realistic.
can someone please help me with the process of adding an extra floor under / over the complete model in the detailed mode, without loosing information.
any reference document, presentation, explanation shall be very much welcome.
thanks..
Kirti Pabrekar
IGBC AP
2011/2/25 <equest-users-request at lists.onebuilding.org>
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Today's Topics:
1. Re: transferring equest file to different computer (Nick Caton)
2. Re: Modeling gas instantaneous water heaters in eQuest
(Nick Caton)
3. Equest: Exhaust air heat recovery to hot loop via cold loop
(B?langer Simon)
4. Re: Equest: Exhaust air heat recovery to hot loop via cold
loop (Arpan Bakshi)
5. Re: VRF/VRV PowerPoint on Modeling (Brad Robinson)
6. Air-side HVAC Summary/ Compliance Report (Brian Smith)
7. Radiant and biomass heating? (Brian Smith)
8. Induction Unit Error (Benjamin Jordan)
---------- Forwarded message ----------
From: "Nick Caton" <ncaton at smithboucher.com>
To: "deepika khowal" <deepika.khowal at gmail.com>, "Charles Land" <cland at geo-marine.com>
Date: Wed, 23 Feb 2011 13:51:52 -0600
Subject: Re: [Equest-users] transferring equest file to different computer
Hey everyone!
I personally have a practice of keeping a "backup" of my finished models on a relatively small flash drive for personal reference. In learning to do this, I picked up some general tips to avoid "what files do I need" line of thinking:
1. Simply copying (ctrl+c) and pasting (ctrl+v) the entire project directory (folder) of files is always an option - I often save/copy/paste my project's directory to my desktop when I want to explore/experiment something without risking harm to my "actual" project.
2. Saving entire directories for backup/reference purposes wastes space. When you only want to keep (or share, as in an email) the bare minimum, including any parametric runs you may have set up, simply open the file, File à Save As to a new directory. Even for big projects, this usually results in a few (2 or 3) files with a tiny "memory footprint" of <1Mb.
3. If you're changing computers, reinstalling/updating eQuest and/or your operating system - it's prudent to also navigate to and keep a copy of any weather files downloaded and accumulated in the eQuest data directory. That will potentially save time finding/recreating a weather file later if you should come back to your work and want to re-run a simulation down the road.
4. If you get motivated to keep backups for future reference or open others' files, remember that you can & should check which version of eQuest was used to create the project before opening it with the wrong version: rightclick the .pd2 file and open with notepad or another text editor - the version used is among the first lines.
Also, I've never used the default eQuest project data directories to save or work from, so the location of the files is not critical. In moving your projects/files around you might get the occasional "where did that AutoCAD reference go" warnings on opening the project -
it's totally safe to skip or remove that reference once you're past defining footprints/zones in the wizards.
Christopher's error regarding sharing violations/permissions almost certainly has nothing to do directly with eQuest... I've only ever run into this sort of error when helping my colleagues/friends who didn't listen to me when I said to avoid migrating from Windows XP (my money is you're using some iteration of Windows Vista or later on your desktop and/or laptop)... I'd suggest sharing/transferring files using a flash drive per above or saving the project to a network drive.
~Nick
Error! Filename not specified.
NICK CATON, E.I.T.
PROJECT ENGINEER
Smith & Boucher Engineers
25501 west valley parkway
olathe ks 66061
direct 913 344.0036
fax 913 345.0617
www.smithboucher.com <http://www.smithboucher.com/>
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of deepika khowal
Sent: Wednesday, February 23, 2011 12:49 PM
To: Charles Land
Cc: McArdle, Christopher; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] transferring equest file to different computer
I think it is very important to have the equest projects and data folder in same path.
check the path of these folders on your laptop and your desktop.
Deepika
On Wed, Feb 23, 2011 at 9:40 AM, Charles Land <cland at geo-marine.com> wrote:
Im not sure but that error does look familiar. I would check to make sure your desktop has an up to date version of eQuest. Or atleast as up to date as the version on your labtop.
From: Dahlstrom, Aaron [mailto:ADahlstrom at in-posse.com]
Sent: Wednesday, February 23, 2011 12:04 PM
To: Carol Gardner; Charles Land
Cc: equest-users at lists.onebuilding.org; McArdle, Christopher
Subject: RE: [Equest-users] transferring equest file to different computer
Agree with Carol and Charles - just the PD2 and INP are necessary for most transfers.
If you have parametric runs, you might also have a PRD file which would be important to transfer.
And I sometimes transfer the PDL file just so I have a history of where / when the file was last used.
You might check the install version on each computer. Back when we used 3.63, there were multiple "builds" and I believe we had problems when we tried to open a file from a later build in an earlier version.
Finally, you might check if any of the files in the final destination are now marked read-only - this has caused me trouble before.
Aaron Dahlstrom , PE, LEED® AP
In Posse - A subsidiary of AKF| 1500 Walnut Street, Suite 1414, Philadelphia, PA 19102
d: 215-282-6753| m: 267-507-5470| In Posse: 215-282-6800| AKF: 215-735-7290
e: ADahlstrom at in-posse.com | in posse web: www.in-posse.com <http://www.in-posse.com/> | akf web: www.akfgroup.com <http://www.akfgroup.com/>
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Carol Gardner
Sent: Wednesday, February 23, 2011 10:48 AM
To: Charles Land
Cc: equest-users at lists.onebuilding.org; McArdle, Christopher
Subject: Re: [Equest-users] transferring equest file to different computer
I do it all the time. As long as you have eQUEST loaded up on each computer you should have no problem. You can either download your .inp and .pd2 files on a USB drive or zip them together and email them to yourself.
Carol
On Wed, Feb 23, 2011 at 7:42 AM, Charles Land <cland at geo-marine.com> wrote:
As long as your copying your .pd2 file and your .inp file you shouldn't have any trouble.
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of McArdle, Christopher
Sent: Wednesday, February 23, 2011 10:38 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] transferring equest file to different computer
Can equest files be transferred to another computer?
I created an equest model on a laptop computer. I transferred the file to my desktop computer but I keep getting an error message about an sharing violation.
Is it possible to transfer equest files between computers?
Christopher McArdle, PE, LEED AP, CEM
EwingCole
Federal Reserve Bank Building
100 N. 6th Street
Philadelphia, PA 19106-1590
DIRECT 215.625.4432
TEL 215.923.2020
FAX 215.574.9163
EMAIL cmcardle at ewingcole.com
ewingcole.com <http://www.ewingcole.com/>
Error! Filename not specified.
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---------- Forwarded message ----------
From: "Nick Caton" <ncaton at smithboucher.com>
To: "David Cantrill" <dcantrill at cxgbs.com>, <equest-users at lists.onebuilding.org>
Date: Wed, 23 Feb 2011 17:21:34 -0600
Subject: Re: [Equest-users] Modeling gas instantaneous water heaters in eQuest
Hi David!
Hm... I'll take a swing at this...
I'd suggest simply modeling a normal gas storage water heater.
1. Zero out the ambient tank heat losses in detailed edit (set tank UA to 0)
2. Match burner efficiency (HIR) and capacity to the actual equipment
3. Call it a day ;)
By default (coming out of the wizards), hot water loops don't have a loop UA defined and so will not model losses. If you're trying to differentiate between instantaneous and storage systems with a static/recirc loop, your storage model ought to define something for loop losses to keep everything on a level playing field.
~Nick
Error! Filename not specified.
NICK CATON, E.I.T.
PROJECT ENGINEER
Smith & Boucher Engineers
25501 west valley parkway
olathe ks 66061
direct 913 344.0036
fax 913 345.0617
www.smithboucher.com <http://www.smithboucher.com/>
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of David Cantrill
Sent: Tuesday, February 22, 2011 2:38 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Modeling gas instantaneous water heaters in eQuest
I am working on a project that is using instantaneous gas water heaters. What is the best way to model these in eQuest?
Thanks,
David Cantrill
Branch Manager - Mississippi
Error! Filename not specified. <http://www.cxgbs.com/>
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---------- Forwarded message ----------
From: "Bélanger Simon" <Simon.Belanger at teknika-hba.com>
To: <equest-users at lists.onebuilding.org>
Date: Thu, 24 Feb 2011 08:37:55 -0500
Subject: [Equest-users] Equest: Exhaust air heat recovery to hot loop via cold loop
Hi all,
First, know that I am a fairly new Equest user. I've searched the archive but have not found a good answer to my question.
In a building I am trying to model, I need to recover heat from the exhaust of a ventilation system with a cold water loop. The heat recovered is then transferred to a hot water loop with a chiller. I have yet to find a way to model that. This should lower our energy consumption as the boiler will have less heat to provide.
Any advice would be welcome,
Thank you all!
Simon Belanger
Junior Engineer in Energy Efficiency
---------- Forwarded message ----------
From: Arpan Bakshi <arpanbakshi at gmail.com>
To: "Bélanger Simon" <Simon.Belanger at teknika-hba.com>
Date: Thu, 24 Feb 2011 09:12:33 -0500
Subject: Re: [Equest-users] Equest: Exhaust air heat recovery to hot loop via cold loop
Simon, so basically you're putting a heat exchanger between your return chilled and hot water lines to reduce return water temperature by preheating hot water before it reaches the boiler?
Arpan Bakshi
On Feb 24, 2011, at 8:37 AM, Bélanger Simon <Simon.Belanger at teknika-hba.com> wrote:
Hi all,
First, know that I am a fairly new Equest user. I've searched the archive but have not found a good answer to my question.
In a building I am trying to model, I need to recover heat from the exhaust of a ventilation system with a cold water loop. The heat recovered is then transferred to a hot water loop with a chiller. I have yet to find a way to model that. This should lower our energy consumption as the boiler will have less heat to provide.
Any advice would be welcome,
Thank you all!
Simon Belanger
Junior Engineer in Energy Efficiency
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To unsubscribe from this mailing list send a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
---------- Forwarded message ----------
From: Brad Robinson <brad.robinson at yahoo.com>
To: Josh Howes <josh at concordenergystrategies.com>, "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org>
Date: Thu, 24 Feb 2011 06:35:48 -0800 (PST)
Subject: Re: [Equest-users] VRF/VRV PowerPoint on Modeling
I'm not sure if this is what you are looking for, but see attached.
----- Original Message -----
From:Josh Howes <josh at concordenergystrategies.com>
To:equest-users at lists.onebuilding.org <mailto:To%3Aequest-users at lists.onebuilding.org>
Cc:
Sent:Wednesday, February 23, 2011 12:23:30 PM
Subject:Re: [Equest-users] VRF/VRV PowerPoint on Modeling
Can anyone repost the Powerpoint presentation about how to model VRV/VRF in eQuest again? Thanks!!
Josh
-- Joshua D. Howes. P.E.
Concord Energy Strategies
(502) 384-9078
http://www.concordenergystrategies.com <http://www.concordenergystrategies.com/>
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---------- Forwarded message ----------
From: "Brian Smith" <brians at murraypc.com>
To: <equest-users at lists.onebuilding.org>
Date: Thu, 24 Feb 2011 10:12:21 -0900
Subject: [Equest-users] Air-side HVAC Summary/ Compliance Report
Hello,
My company has just begun experimenting with Equest, and I'm the chosen on the figure it out. There are a couple of questions that have eluded me up to this point but I would imagine are some what trivial to people of the list serv. These pertain to an seemingly error free DD model.
1. While looking in the Air-Side HVAC summary report I find a column of Heat btuh/sf. Is this an average or a design day? It also seems 25% high for many buildings compared to what I find using IMC equations for heat loss and even adding in the ventilation load given from this same zone summary. Are there some raw numbers I can use to verify this number?
2. While asking for a compliance analysis I received this message (x19) :
"Table look up failed: A901-07_Envelope(1,5) evaluating rule: Look-up and default C-Cfactor"
Is there some additional download package I need?
Thanks,
Brian Smith
---------- Forwarded message ----------
From: "Brian Smith" <brians at murraypc.com>
To: <equest-users at lists.onebuilding.org>
Date: Thu, 24 Feb 2011 10:19:59 -0900
Subject: [Equest-users] Radiant and biomass heating?
Hello,
My company has just begun experimenting with Equest, and I'm the chosen on the figure it out. There are a couple of questions that have eluded me up to this point but I would imagine are some what trivial to people of the list serv. These pertain to an seemingly error free DD model.
1. A building I'm modeling has a biomass boiler and Radiant ceiling panels. I did not find places where I could spec these. Instead I said my system is natural gas, figuring a btu is a btu, (even though efficiencies my be different). And rather than RCP I said they where HW baseboards? Are others making similar assumptions or am I just missing something all together? I this something that maybe I would see in future editions?
Thanks,
Brian Smith
---------- Forwarded message ----------
From: Benjamin Jordan <benmichaeljordan at gmail.com>
To: equest-users at lists.onebuilding.org
Date: Thu, 24 Feb 2011 14:25:45 -0500
Subject: [Equest-users] Induction Unit Error
Hello everyone,
I'm running into an error with my setup of an induction unit in equest. For some reason, I am showing cooling during Jan, Feb, Mar, Nov, and Dec for a building near Rochester, NY. I have the baseline model setup too and I am showing basically zero cooling during this months (baseline unit is PTAC units b/c it's a residential building). Anyways, I have heat recovery on the OA for my induction units. Does anyone have any ideas to where my error is? Any type of help would be appreciated. Thanks!
Ben Jordan
Burt Hill, Stantec
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Regards,
Ar. Kirti Pramod Pabrekar.
IGBC AP, LEED India,
M. Arch,
Environmental Planning and Design.
+91 9821 68 2280
...Green is a commitment...not a competition...
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