[Equest-users] Equest-users Digest, Vol 48, Issue 1
Grindrod, Robert
robert.grindrod at csgrp.com
Thu Mar 1 14:18:38 PST 2012
W-9 attached
Robert Grindrod
Low-Rise, Multi-Family Project Manager
Conservation Services Group
315-559-9118 cell
508 836 9500 X13258 office.
-----Original Message-----
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of equest-users-request at lists.onebuilding.org
Sent: Thursday, March 01, 2012 4:33 PM
To: equest-users at lists.onebuilding.org
Subject: Equest-users Digest, Vol 48, Issue 1
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than "Re: Contents of Equest-users digest..."
Today's Topics:
1. Re: how to make a cooling load profile? (David Eldridge)
2. Re: What should be put the Sensible Ht fraction in SDW?
(Vern Smith)
3. Compliance Ruleset Error (Matt Clough)
4. Re: wall composition and U value (Nick Caton)
5. LEED savings spreadsheet error? (norman wheatley)
6. Re: LEED savings spreadsheet error? (CleanTech Analytics)
7. Green Roof - eQuest style (John Aulbach)
8. Re: Green Roof - eQuest style (CleanTech Analytics)
9. Re: Green Roof - eQuest style (Nathan Miller)
10. Re: Green Roof - eQuest style (Paul Diglio)
11. Looking for Allison Rutter (Michael Mantai)
----------------------------------------------------------------------
Message: 1
Date: Wed, 29 Feb 2012 15:50:15 -0600
From: David Eldridge <dse at grummanbutkus.com>
To: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] how to make a cooling load profile?
Message-ID: <93b3abd20fb815c8e9b463bddfed72f9 at mail.gmail.com>
Content-Type: text/plain; charset="windows-1252"
How about the DOE Reference buildings?
David
*
*
David S. Eldridge, Jr., P.E., LEED AP BD+C, BEMP, BEAP, HBDP
*Grumman/Butkus Associates*
*
*
*From:* equest-users-bounces at lists.onebuilding.org [mailto:
equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Nessle, Willis
*Sent:* Wednesday, February 29, 2012 2:02 PM
*To:* equest-users at lists.onebuilding.org
*Subject:* [Equest-users] how to make a cooling load profile?
Hi everybody,
I need to generate an 8760 hour cooling load profile for a generic
building. The purpose is to capture the total load that a bldg?s AC
equipment will need to meet.
I am NOT trying to simulate a specific building - just a generic ?office?,
or ?school?, or ?hospital?, etc. To that end I dashed off a model w/o
entering a single user input ? all SD Wizard defaults. Assumption being
that the defaults are suitable for ?typical buildings?.
?----> Is this a reasonable assumption (using all defaults to represent
?typical? bldg)?
?----> Or are there some inputs ? like system parameters - that I must
define in order for the model to produce ball-park accuracy?
?----> Which variables should I pull from the Hourly Blocks to make an 8760
hour report showing total cooling load equipment would need to meet?
*----> I noticed my ?Building Loads? cooling load data (2 variables:
sensible, latent) are much greater than ?Building HVAC? cooling load data
(1 variable: ?coils+losses+gains?). ?Building Loads? shows 472 kBtuh at
the peak while ?Building HVAC? shows just 296 kBtuh at same time. What is
going on here?
*----> Finally, where do I find the OA Ventilation latent load?
My larger objective is to develop profiles for a fair size list of building
types with the most common equipment combinations (location: Texas).
I believe the cooling load depends on the equipment type to a certain
extent, since some loads are added by the system components, such as fan or
pump energy. Therefore, in order to develop a cooling (and heating)
profile for each building type/equipment type combination, I suspect I?ll
need to ensure that the system (and/or plant) is defined appropriately.
?----> Is that the right way to think about it?
?----> Which additional variables would I need to pull for the load profile
for a bldg. w/ a chilled water system?
?----> Any suggestions?
(As you may have guessed, I?m familiar with eQUEST but have only limited
experience.)
Thanks for any advice,
Willis Nessle
Nexant, Inc.
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Message: 2
Date: Wed, 29 Feb 2012 15:17:41 -0700
From: Vern Smith <vernon.a.smith at gmail.com>
To: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] What should be put the Sensible Ht
fraction in SDW?
Message-ID: <4F4EA405.3080007 at gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello Jing,
Table 23 in the BARB report includes the estimated annual energy use for
each appliance. I suggest developing an average sensible and latent
fraction by multiplying the annual energy for each appliance by the its
sensible and latent fractions. Sum these for all appliances and then
divide the sensible sum and the latent sum by by total annual energy
use. This should give you representative sensible and latent fractions.
Regards,
Vern
_______________________
Vernon A. Smith, P.E.
Smith Energy Engineers, LLC
720-320-9154
On 12:59 PM, Jing Hong wrote:
> Hi all,
> When i was trying to put the sensible Ht (frac) in cooking loads
> section, i met a problem. I followed the Building America Research
> Benchmark (BARB) to define my model. In that case, I should put the
> Sensible load fraction of Refringerator, Dishwasher, range showed on
> BARB into my equest model. However, those appliances has different
> fraction, but i have only one blank for the sensible fraction of
> kitchen in eQuest. How could I decide what number I should choose to
> put in? Did some one use Benchmark to build eQuest model before can
> help me? I am appreciated.
> Jing
------------------------------
Message: 3
Date: Wed, 29 Feb 2012 22:44:13 +0000
From: Matt Clough <mclough at kme-inc.com>
To: "equest-users at lists.onebuilding.org"
<equest-users at lists.onebuilding.org>
Subject: [Equest-users] Compliance Ruleset Error
Message-ID: <6F3694F71FCF0D4A89F7337180F2049E1A4C7A at KME3.kme.local>
Content-Type: text/plain; charset="us-ascii"
Salutations!
I am following in the footsteps of many people before me. I have scoured the archives and am having trouble finding a solution to the problem of compliance rulesets that do not properly acquire R,F,U,or C values.
More specifically, this error:
Table look-up failed: A901-07_Envelope(1,4) evaluating rule: Look-up and default C-FFACTOR for slabs
>From what I've read so far, I know it's because the F-Factor in the floor property is undefined, but I cannot manually enter the F-FACTOR from the ASHRAE table (A6.3). I can only change the [Slab-on-Grade Exposed perimeter] and not the [Slab-on-Grade F-Factor]. I have found many instances of this and similar problems, but no adequate solution descriptions.
Can someone elucidate the cause of the error? It seems that it is caused because the routine that imports the values for compliance analysis are imperfect and don't make all of the changes.
How can I resolve my issue? I want to input an F-Factor per Table A6.3, but eQuest tells me that the data is not user editable. Please Advise.
Regards,
Matt Clough
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Message: 4
Date: Wed, 29 Feb 2012 23:09:55 +0000
From: Nick Caton <ncaton at smithboucher.com>
To: "Sami, Vikram" <Vikram.Sami at perkinswill.com>, "tanyer at metu.edu.tr"
<tanyer at metu.edu.tr>, "equest-users at lists.onebuilding.org"
<equest-users at lists.onebuilding.org>
Subject: Re: [Equest-users] wall composition and U value
Message-ID:
<ECDF361A89E5FA479BE7E64C658B520508885945 at SANDBINC4.sbi.smithboucher.com>
Content-Type: text/plain; charset="us-ascii"
Interesting case: I've modeled exactly as you've described for a very unique existing case where the windows were spray-painted opaque from the inside...
(PS: spray-paint does *not* hold up well over time on exposed glass - file that away as a pretty bad idea)!
Vikram is right: your approximation including windows would correctly approximate the non-solar heat transfer loads but will fall short when it comes to solar loads, which are usually a big enough deal to warrant actually specifying the windows. Averaging the non-window constructions is often a very acceptable time-saving measure, especially when the constructions are largely similar. I would think twice before averaging together constructions with very different properties.
A tip: if you are going to go through the effort of defining your uvalues separately for each wall construction, it may be worth noting eQuest will tally the net u-value for each construction automatically if you use the layers approach, much like other load calculation software. I find that as easy as any other method, and you get a weighted construction as icing on the cake ;).
NICK CATON, P.E.
SENIOR ENGINEER
Smith & Boucher Engineers
25501 west valley parkway, suite 200
olathe, ks 66061
direct 913.344.0036
fax 913.345.0617
www.smithboucher.com
-----Original Message-----
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Sami, Vikram
Sent: Wednesday, February 29, 2012 1:25 PM
To: tanyer at metu.edu.tr; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] wall composition and U value
You need to separate out the windows - only model opaque elements as walls. Model the windows as windows.
Otherwise - it should be fine to model the wall as a homogenous average of the multiple layers - you should be able to do a weighted average calc.
Do you have insulation? Does it run continuous over everything?
Vikram Sami, LEED AP BD+C
Sustainable Design Analyst
1315 Peachtree St. NE, Atlanta, GA 30309
t: 404-443-7462 f: 404.892.5823 e: vikram.sami at perkinswill.com www.perkinswill.com
Perkins+Will. Ideas + buildings that honor the broader goals of society
-----Original Message-----
From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of tanyer at metu.edu.tr
Sent: Wednesday, February 29, 2012 8:57 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] wall composition and U value
Dear all,
I am trying to find the U value of a wall which is composed of concrete beams and colums (20%) masonry (60%) and glazing (20%).
I know the U values of the components and I would like to calculate the average U value for this wall since it is a single entity in eQuest.
Do I need to include the area of the glazing when calculating the total U value?
0.2 x Ucnct + 0.6 x Umsry + 0.2 x Uglzg
OR, do I have to extrapolate the concrete and the masonry parts as if covering the glazing part?
0.25 x Ucnct + 0.75 x Umsry
As you know we also define the glazing U value later seperately.
Thanks
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------------------------------
Message: 5
Date: Wed, 29 Feb 2012 18:47:02 -0800
From: norman wheatley <normwheatley at gmail.com>
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] LEED savings spreadsheet error?
Message-ID:
<CAMSdQWAoBKEHKpC1u2Qxf1o8+N_qeQO0g7-6a--p8RSn-Fq5og at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Hi,
It is possible that you may have attempted to use eQuest for modeling a
building for LEED. You may even have been so fortunate as to have
automatically generated the LEED Baseline and the 3 rotated models from the
Proposed model. You are indeed blessed (and you have no plenums).
However, if you check the ES-D Energy Cost summaries for your 5 models
against the dollar amounts you see in the exported LEED Analysis
spreadsheet you will see that they are too low.
Anyone know why this is?
thanks
Norm Wheatley
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Message: 6
Date: Wed, 29 Feb 2012 20:48:41 -0800
From: CleanTech Analytics <jeremiah at cleantechanalytics.com>
To: norman wheatley <normwheatley at gmail.com>
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] LEED savings spreadsheet error?
Message-ID:
<CALKTE9T9ZcmTLTN=dNDr1gmkfA+Mz786wJPR8LBQuq7D1p=88g at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Norman,
I experienced a similar issue when using the LEED compliance feature, it
was the point that I decided to remove all my projects from the risk
involved with eQuest.
Think about it, eQuest predates LEED, and is no longer funded by the USDOE,
nor does it have income from sales, so the best you get is this list, as
James and his Jeff Hirsch can not really do much for all the users. When I
had an issue I tracked down the phone number for the Hirsch's of
805-532-1045, and left a voicemail, then was texted back the message
"please send email to jeff.hirsch at doe2.com and when I emailed the below I
never got a response, and after that just never felt that eQuest was of the
quality that I would be willing to bet my projects on.
Jeff,
I am working on a LEED compliance building model in eQUEST, and have to ask
you a question.
So I created a building that has zero insulation, standard lighting
watts/sqft and ran the compliance analysis.
The building that is not at code energy costs are in the sixty thousand
range, and the 0,90,180,270 average that should be at code is in the ninty
thousand range.This %30 savings for the building that has zero insulation
over the building that has been auto generated to be complaint with
ASHRAE/LEED shows that for some reason the building that is not at code
uses 30% less then the building that is suppose to be at code, and I am
sure that the software is wrong.
Now I have read the PDF published on the subject, and am very curios if the
compliance analysis tool is something that you believe to work correctly?
(I would be happy to find out I made some error, but can not find any such
errors on my part, and someone told me that the tool does not work so I
doubt it is error on my part)
It is great to have such a simple to use and get results tool, but then
what happens when people use what are documented to be working elements of
the software do not work as expected? You are very lucky you double
checked, and for anyone else who is working on a LEED project, I advise
them to buy a tool such as design builder, for use in developing the
project geometry, HVAC and other items that they may be used to doing in
the "Wizards", and then fine tune in the Energy Plus IDF editor what they
may have done in the detailed mode of eQuest. Energy Plus even has the
ability auto generate baseline rotations.
Don't get me wrong, I still use eQuest for quick non sensitive projects,
learned a great deal from the interface, and would advise new energy
modelers to start with it so am not totally anti eQuest per say..
On Wed, Feb 29, 2012 at 6:47 PM, norman wheatley <normwheatley at gmail.com>wrote:
> Hi,
>
> It is possible that you may have attempted to use eQuest for modeling a
> building for LEED. You may even have been so fortunate as to have
> automatically generated the LEED Baseline and the 3 rotated models from the
> Proposed model. You are indeed blessed (and you have no plenums).
>
> However, if you check the ES-D Energy Cost summaries for your 5 models
> against the dollar amounts you see in the exported LEED Analysis
> spreadsheet you will see that they are too low.
> Anyone know why this is?
>
> thanks
> Norm Wheatley
>
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send a blank message to
> EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>
>
--
*Jeremiah D. Crossett*
*CleanTech Analytics*
*503-688-8951*
*www.cleantechanalytics.com* <http://www.cleantechanalytics.com>
*
This document may contain valuable information proprietary to CleanTech
Analytics which is private and confidential. It may not be shared, copied,
stored or transmitted in any form without the prior written consent of
CleanTech Analytics
*
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Message: 7
Date: Thu, 1 Mar 2012 06:04:02 -0800 (PST)
From: John Aulbach <jra_sac at yahoo.com>
To: "equest-users at lists.onebuilding.org"
<equest-users at lists.onebuilding.org>
Subject: [Equest-users] Green Roof - eQuest style
Message-ID:
<1330610642.93386.YahooMailNeo at web126102.mail.ne1.yahoo.com>
Content-Type: text/plain; charset="us-ascii"
OK, my fellow Raiders of the Lost BTU..
What would be your advice for developing a green roof in eQuest? I am sure some of you have gone through the USGBC with hopes of getting this approved.
I eagerly await your suggestions with thanks.
John Aulbach
Partner Energy
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Message: 8
Date: Thu, 1 Mar 2012 07:08:18 -0800
From: CleanTech Analytics <jeremiah at cleantechanalytics.com>
To: John Aulbach <jra_sac at yahoo.com>
Cc: "equest-users at lists.onebuilding.org"
<equest-users at lists.onebuilding.org>
Subject: Re: [Equest-users] Green Roof - eQuest style
Message-ID:
<CALKTE9TMf52xEr6Bsx-hce01J=M7kD0JDC84TyZYUYgFziyFvQ at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
John,
I advise you to use a more modern software that has the ability to
correctly simulate the effects of a Green Roof rather then some wacky
eQuest work around. Professor David Sailor of Portland State
University developed
the Green Roof object for Energy Plus that uses a
a finite difference algorithm and works well. The problem with eQuest/DOE2
is that it is based on a conduction transfer algorithm, and can not really
emulate the effects of a Green Roof. If you need the easy to use inputs, I
suggest Design Builder to generate the Energy Plus file.
Best of luck, and feel free to ask if you need more about EP/DB..
On Thu, Mar 1, 2012 at 6:04 AM, John Aulbach <jra_sac at yahoo.com> wrote:
> OK, my fellow Raiders of the Lost BTU..
>
> What would be your advice for developing a green roof in eQuest? I am sure
> some of you have gone through the USGBC with hopes of getting this approved.
>
> I eagerly await your suggestions with thanks.
>
> John Aulbach
> Partner Energy
>
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send a blank message to
> EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>
>
--
*Jeremiah D. Crossett*
*CleanTech Analytics*
*503-688-8951*
*www.cleantechanalytics.com* <http://www.cleantechanalytics.com>
*
This document may contain valuable information proprietary to CleanTech
Analytics which is private and confidential. It may not be shared, copied,
stored or transmitted in any form without the prior written consent of
CleanTech Analytics
*
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Message: 9
Date: Thu, 1 Mar 2012 08:18:24 -0800 (PST)
From: "Nathan Miller" <nathanm at rushingco.com>
To: "'CleanTech Analytics'" <jeremiah at cleantechanalytics.com>, "'John
Aulbach'" <jra_sac at yahoo.com>
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Green Roof - eQuest style
Message-ID: <058f01ccf7c7$0851c170$18f54450$@com>
Content-Type: text/plain; charset="us-ascii"
I suppose there is probably some benefit to a green roof, but I've never
tried to claim credit for it.
At least in Seattle's damp climate, when you would most benefit from the
additional insulation of a green-roof-layer (winter) is the same time of
the year the growth medium will be saturated, and likely provide you with
the least insulative value. In the summer, when you would actually want
the heat to escape, the medium will dry out (unless you are irrigating
it).
Soil has an insulative value of only around R-0.104/in (at least according
to a table in the Seattle Energy Code), so even ignoring moisture levels,
it doesn't seem like there is much benefit there.
I suppose in a heavy cooling climate the reflectivity of the plants might
get you some benefit, as well as the evaportative cooling effect if you
are irrigating. Is that where the credit would be? Is there a thermal mass
benefit?
Nathan Miller, PE, LEED AP BD+C
Mechanical Engineer/Senior Energy Analyst
O 206-285-7100 | D 206-788-4577
<http://www.rushingco.com/> www.rushingco.com
From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of CleanTech
Analytics
Sent: Thursday, March 01, 2012 7:08 AM
To: John Aulbach
Cc: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Green Roof - eQuest style
John,
I advise you to use a more modern software that has the ability to
correctly simulate the effects of a Green Roof rather then some wacky
eQuest work around. Professor David Sailor of Portland State University
developed the Green Roof object for Energy Plus that uses a a finite
difference algorithm and works well. The problem with eQuest/DOE2 is that
it is based on a conduction transfer algorithm, and can not really emulate
the effects of a Green Roof. If you need the easy to use inputs, I suggest
Design Builder to generate the Energy Plus file.
Best of luck, and feel free to ask if you need more about EP/DB..
On Thu, Mar 1, 2012 at 6:04 AM, John Aulbach <jra_sac at yahoo.com> wrote:
OK, my fellow Raiders of the Lost BTU..
What would be your advice for developing a green roof in eQuest? I am sure
some of you have gone through the USGBC with hopes of getting this
approved.
I eagerly await your suggestions with thanks.
John Aulbach
Partner Energy
_______________________________________________
Equest-users mailing list
http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
To unsubscribe from this mailing list send a blank message to
EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
--
Jeremiah D. Crossett
CleanTech Analytics
503-688-8951
<http://www.cleantechanalytics.com> www.cleantechanalytics.com
<http://cleantechanalytics.com/images/stories/cleantech%20analytics%20120.
PNG>
This document may contain valuable information proprietary to CleanTech
Analytics which is private and confidential. It may not be shared, copied,
stored or transmitted in any form without the prior written consent of
CleanTech Analytics
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Message: 10
Date: Thu, 1 Mar 2012 08:57:31 -0800 (PST)
From: Paul Diglio <paul.diglio at sbcglobal.net>
To: CleanTech Analytics <jeremiah at cleantechanalytics.com>, John
Aulbach <jra_sac at yahoo.com>
Cc: "equest-users at lists.onebuilding.org"
<equest-users at lists.onebuilding.org>
Subject: Re: [Equest-users] Green Roof - eQuest style
Message-ID: <1330621051.40415.YahooMailRC at web83305.mail.sp1.yahoo.com>
Content-Type: text/plain; charset="us-ascii"
So Jeremiah:
Do you any business relationship with Design Builder?
Paul Diglio, CEM, CBCP
87 Fairmont Avenue
New Haven, CT 06513
203-415-0082
www.pdigliollc.com
________________________________
From: CleanTech Analytics <jeremiah at cleantechanalytics.com>
To: John Aulbach <jra_sac at yahoo.com>
Cc: "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org>
Sent: Thu, March 1, 2012 10:08:18 AM
Subject: Re: [Equest-users] Green Roof - eQuest style
John,
I advise you to use a more modern software that has the ability to correctly
simulate the effects of a Green Roof rather then some wacky eQuest work around.
Professor David Sailor of Portland State University developed the Green Roof
object for Energy Plus that uses a a finite difference algorithm and works well.
The problem with eQuest/DOE2 is that it is based on a conduction transfer
algorithm, and can not really emulate the effects of a Green Roof. If you need
the easy to use inputs, I suggest Design Builder to generate the Energy Plus
file.
Best of luck, and feel free to ask if you need more about EP/DB..
On Thu, Mar 1, 2012 at 6:04 AM, John Aulbach <jra_sac at yahoo.com> wrote:
OK, my fellow Raiders of the Lost BTU..
>
>What would be your advice for developing a green roof in eQuest? I am sure some
>of you have gone through the USGBC with hopes of getting this approved.
>
>I eagerly await your suggestions with thanks.
>
>John Aulbach
>Partner Energy
>
>_______________________________________________
>Equest-users mailing list
>http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
>To unsubscribe from this mailing list send a blank message to
>EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>
>
--
Jeremiah D. Crossett
CleanTech Analytics
503-688-8951
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Message: 11
Date: Thu, 01 Mar 2012 13:00:05 -0500
From: Michael Mantai <mmantai at systemworcx.com>
To: <equest-users at lists.onebuilding.org>
Subject: [Equest-users] Looking for Allison Rutter
Message-ID: <CB752355.3129E%mmantai at systemworcx.com>
Content-Type: text/plain; charset="US-ASCII"
Help! I'm trying to track down Allison Rutter. She is a freelance energy
modeler we found through this listserve who has some unfinished work for us
and I cannot get any response from her via email or voice mail. If anyone
has current contact information for her, will you please send me her email
or ask her to contact me? I have email addresses of
energy.modeler at gmail.com and allison.rutter at gmail.com.
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