>
>
> Wang,
> The thermal time constant for a zone in your building
is not a simple
> thing to compute. It has to do with the materials in
the wall, the
> placement
> of the mass within the wall, the capacitance of the
zone, ventilation,
> infiltration, gains, solar radiation, etc. I would
think that the easiest
> way to get an estimate of the zone's thermal time
constant is to impose a
> step change in one input on it - step change the
ambient temperature while
> holding all other inputs constant for example.
>
> The numbers that you see in the *.inf file are
transfer function
> coefficients. You can read in the ASHRAE Handbook of
Fundamentals about
> the
> Conduction Transfer Function methodology.
> Regards,
> David
>
>
>
> On 11/3/2010 09:29, 王洋 wrote:
>
> Dear all,
>
> 1. How to calculate or find the thermal time constant
of zone in TRNSYS
> software?
>
> ---------- WALL TYPE BST_FL_HEAT_W1 ----------
>
> THERMAL CONDUCTANCE, U= 67.80000 kJ/h m2K;
U-Wert= 4.48235
> W/m2K
> (incl. alpha_i=7.7 W/m^2 K and alpha_o=25
W/m^2 K)
>
> TRANSFERFUNCTION COEFFICIENTS
> K A B C
D
>
> 0 1.7050117E+02 2.1087019E+01
1.7050117E+02
> 1.0000000E+00
> 1 -1.1800059E+02 3.5808933E+01
-1.1800059E+02
> -1.3683139E-01
> 2 6.0267372E+00 1.6298573E+00
6.0267372E+00
> 4.7362566E-05
> 3 -1.2736107E-03 2.3363784E-04
-1.2736107E-03
> SUM 5.8526043E+01 5.8526043E+01
5.8526043E+01
> 8.6321597E-01
> What's meaning of A B C D? Are they Wall's
TRANSFERFUNCTION COEFFICIENTS?
> And what is the thermal time constant of the whole
zone? How to calculate
> or
> find the thermal time constant of the whole zone in
TRNSYS software?
> Need I calculate by myself the whole zone's
TRANSFERFUNCTION based on
> all
> the walls of the zone or others?
>
> 2. How to calculate or find air volume flow of the
window opening in
> TRNFlow software?
> The window opening area (m2)is known. Whether it needs
the wind
> speed(m/s)
> or not?
>
> Many thanks!
>
> Br.
>
> wang
> 2010/11/3 <
trnsys-users-request@cae.wisc.edu>
>
>> Send TRNSYS-users mailing list submissions to
>>
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>>
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>>
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>> When replying, please edit your Subject line so it
is more specific
>> than "Re: Contents of TRNSYS-users digest..."
>>
>> Today's Topics:
>>
>> 1. Re: GenOpt optimization: problem for the
second generation
>> after 5 simulations (Thibaut VITTE)
>> 2. Re: google sketchup+trnsys3d (hotline)
>> 3. input file (Emiliano Casati - 3ME)
>> 4. Re: GenOpt optimization: problem for the
secondgeneration
>> after 5 simulations (Timothy McDowell)
>>
>>
>> ---------- 已转发邮件 ----------
>> From: Thibaut VITTE <
thibaut.vitte@h3c-energies.fr>
>> To:
trnsys-users@cae.wisc.edu
>> Date: Wed, 03 Nov 2010 11:27:53 +0100
>> Subject: Re: [TRNSYS-users] GenOpt optimization:
problem for the second
>> generation after 5 simulations
>> Dear Alexis,
>>
>> I've had a similar error when I used Genopt. I've
had several components
>> tracked by a "trace" command that made my list file
enormous (more than
>> 100Mb) and genopt could'nt handle that amount of
data.
>>
>> Just my 2cents.
>>
>> Thibaut
>> --
>>
>> Le futur maîtrisé
>>
>> Thibaut VITTE
>>
>> Docteur - Ingénieur Energies
>>
>> Mail :
thibaut.vitte@h3c-energies.fr
>>
>> -----------------------------
>>
>> H3C-énergies
>>
>> 35, chemin du vieux Chêne - 38240 MEYLAN
>>
>> Tél : 04 76 41 88 66 – Fax : 04 76 41 28 94
>>
>>
www.h3c-energies.fr
>>
>>
>>
-----------------------------------------------------------------------------------
>>
>> Afin de contribuer au respect de l'environnement,
merci de n'imprimer ce
>> message qu'en cas de nécessité.
>>
>> In order to respect the environment, please don't
print this e-mail
>> unless
>> you really need to.
>>
>>
>> ---------- 已转发邮件 ----------
>> From: "hotline" <
hotline@transsolar.com>
>> To: "julia.feste" <
julia.feste@whitepavilion.com.cn>
>> Date: Wed, 3 Nov 2010 11:37:08 +0100
>> Subject: Re: [TRNSYS-users] google
sketchup+trnsys3d
>> Hi,
>>
>> that's a well known problem that will be fixed in
the next version.
>> Hopefully upcoming within the next weeks.
>>
>> Regards
>> Christian
>>
>> TRANSSOLAR Software Team
>>
hotline@transsolar.com
>>
>>
www.trnsys.de
>> Transsolar KlimaEngineering - Technologien für
energieeffizientes Bauen
>> und Nutzerkomfort in Gebäuden
>> Transsolar Energietechnik GmbH, Curiestrasse 2,
70563 Stuttgart /
>> Amtsgericht Stuttgart - HRB 23347 / USt-IdNr.:
99073/00911
>> Geschäftsführer: Dipl.Ing. Matthias Schuler,
Dipl.Ing. Thomas Auer,
>> Dipl.Phys. Stefan Holst, Prof. Volkmar Bleicher
>>
>> -----Ursprüngliche Nachricht-----
>> Von: julia.feste [mailto:
julia.feste@whitepavilion.com.cn]
>> Gesendet: Mittwoch, 3. November 2010 06:46
>> An:
trnsys-users@cae.wisc.edu
>> Betreff: [TRNSYS-users] google sketchup+trnsys3d
>>
>>
>> Hello everybody,
>> Thanks for your posts that's always really
interesting!
>> I come up with a problem using Google Sketchup and
TRNSYS3D: inside a
>> TRNSYS zone, I draft a square, then I want to pull
it up at a certain
>> height, so I write the number then Enter, and this
error appears:
>>
>> <-----Beginning of the error----->
>> ERROR:
>> NoMethodError
>> undefined method `position' for
>> #<Sketchup::AttributeDictionary:0xfcb4eb8>
>>
>> BACKTRACE:
>> C:/Program Files/Google/Google SketchUp
>> 8/Plugins/Trnsys3d/sketchup/Sketchup.rb:309:in
`polygon_loop'
>> C:/Program Files/Google/Google SketchUp
>> 8/Plugins/Trnsys3d/sketchup/Sketchup.rb:309:in
`each'
>> C:/Program Files/Google/Google SketchUp
>> 8/Plugins/Trnsys3d/sketchup/Sketchup.rb:309:in
`polygon_loop'
>> C:/Program Files/Google/Google SketchUp
>> 8/Plugins/Trnsys3d/sketchup/Sketchup.rb:321:in
`outer_polygon'
>> C:/Program Files/Google/Google SketchUp
>> 8/Plugins/Trnsys3d/sketchup/Sketchup.rb:326:in
`polygon'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/DrawingUtils.rb:27:in
>> `detect_base_face'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/DrawingUtils.rb:20:in
`each'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/DrawingUtils.rb:20:in
>> `detect_base_face'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/BaseSurface.rb:254:in
`face_polygon'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/BaseSurface.rb:253:in
`each'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/BaseSurface.rb:253:in
`face_polygon'
>> C:/Program Files/Google/Google SketchUp
>> 8/Plugins/Trnsys3d/lib/interfaces/Surface.rb:107:in
>> `update_input_object'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/BaseSurface.rb:94:in
>> `update_input_object'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/interfaces/DrawingInterface.rb:353:in
>> `on_change_entity'
>> C:/Program Files/Google/Google SketchUp
>>
8/Plugins/Trnsys3d/lib/observers/FaceObserver.rb:32:in
`onChangeEntity'
>> C:/Program Files/Google/Google SketchUp
>> 8/Plugins/Trnsys3d/lib/AsynchProc.rb:17:in
`initialize'
>>
>> <-----End of the error----->
>>
>> When I pull it up manual, I don't have any problem,
just when I write
>> the number.
>>
>> Thanks in advance for your help,
>> Julia.
>> ________________________________________
>> From:
trnsys-users-request@cae.wisc.edu
>> [
trnsys-users-request@cae.wisc.edu]
>> Sent: Wednesday, November 03, 2010 1:04 AM
>> To:
trnsys-users@cae.wisc.edu
>> Subject: TRNSYS-users Digest, Vol 71, Issue 4
>>
>> Send TRNSYS-users mailing list submissions to
>>
trnsys-users@cae.wisc.edu
>>
>> To subscribe or unsubscribe via the World Wide Web,
visit
>>
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>> or, via email, send a message with subject or body
'help' to
>>
trnsys-users-request@cae.wisc.edu
>>
>> You can reach the person managing the list at
>>
trnsys-users-owner@cae.wisc.edu
>>
>> When replying, please edit your Subject line so it
is more specific than
>> "Re: Contents of TRNSYS-users digest..."
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>>
TRNSYS-users@cae.wisc.edu
>>
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>>
>>
>>
>>
>>
>>
>>
>> ---------- 已转发邮件 ----------
>> From: "Emiliano Casati - 3ME" <
E.I.M.Casati@tudelft.nl>
>> To: <
trnsys-users@cae.wisc.edu>
>> Date: Wed, 3 Nov 2010 13:19:58 +0100
>> Subject: [TRNSYS-users] input file
>>
>> Hi to everybody!
>>
>> I don’t understand why, for certain projects, I
can’t open the input
>> file,
>> the message is “the system cannot find the path
specified”.
>>
>> Where should I find the input file?
>>
>>
>>
>> Thanks a lot
>>
>>
>>
>> ec
>>
>>
>> ---------- 已转发邮件 ----------
>> From: "Timothy McDowell" <
mcdowell@tess-inc.com>
>> To: "Thibaut VITTE" <
thibaut.vitte@h3c-energies.fr>,
>>
trnsys-users@cae.wisc.edu
>> Date: Wed, 3 Nov 2010 07:23:05 -0500 (CDT)
>> Subject: Re: [TRNSYS-users] GenOpt optimization:
problem for the
>> secondgeneration after 5 simulations
>> This type of error in GenOpt is usually caused by
an error in the TRNSYS
>> simulation. You need to check the *.lst file for
the TRNSYS run to see
>> what the TRNSYS error is.
>>
>> Regards,
>>
>> Tim
>>
>>
>>
>>
>>
>> ----------------------------------
>> Timothy McDowell
>> Executive Vice President
>> Thermal Energy System Specialists, LLC
>> 22 N. Carroll St, Suite 370
>> Madison, WI 53703
>> Phone: 608-274-2577
>> Fax: 608-278-1475
>>
>> ----- Original Message -----
>> From: "Thibaut VITTE" <
thibaut.vitte@h3c-energies.fr>
>> Sent: Wed, November 3, 2010 5:27
>> Subject:Re: [TRNSYS-users] GenOpt optimization:
problem for the
>> secondgeneration after 5 simulations
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Dear Alexis,
>>
>> I've had a similar error when I used Genopt.
I've had several
>> components tracked by a "trace" command that
made my list file
>> enormous (more than 100Mb) and genopt could'nt
handle that amount of
>> data.
>>
>> Just my 2cents.
>>
>> Thibaut
>> --
>>
>>
>> .bodyclass @page { size: 8.5in 11in;
margin-top: 0.7874in;
>> margin-bottom:
>> 0.7874in; margin-left: 0.7874in; margin-right:
0.7874in }
>> .bodyclass table { border-collapse:collapse;
border-spacing:0;
>> empty-cells:show }
>> .bodyclass td, th { vertical-align:top;
font-size:12pt;}
>> .bodyclass h1, h2, h3, h4, h5, h6 { clear:both
}
>> .bodyclass ol, ul { margin:0; padding:0;}
>> .bodyclass li { list-style: none; margin:0;
padding:0;}
>> .bodyclass li span.odfLiEnd { clear: both;
line-height:0; width:0;
>> height:0; margin:0; padding:0; }
>> .bodyclass span.footnodeNumber {
padding-right:1em; }
>> .bodyclass * { margin:0; }
>> .bodyclass .fr1 { font-size:12pt;
text-align:center;
>> vertical-align:top;
>> margin-left:0in; margin-right:0in; margin-top:0in;
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>> padding:0in; border-style:none; }
>> .bodyclass .P1 { font-size:12pt;
margin-bottom:0in; margin-top:0in;
>> font-family:Times New Roman; text-align:center !
important; }
>> .bodyclass .P10 { font-size:7.5pt;
margin-bottom:0in;
>> margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:justify
! important;
>> color:#f79646; }
>> .bodyclass .P2 { font-size:9pt;
margin-bottom:0in; margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:center !
important;
>> color:#e36c0a; font-style:italic; font-weight:bold;
}
>> .bodyclass .P3 { font-size:9pt;
margin-bottom:0in; margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:justify
! important;
>> color:#e36c0a; font-weight:bold; }
>> .bodyclass .P4 { font-size:9pt;
margin-bottom:0in; margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:justify
! important;
>> color:#e36c0a; font-weight:bold; }
>> .bodyclass .P5 { font-size:7.5pt;
margin-bottom:0in;
>> margin-top:0in;
>> font-family:Tahoma, sans-serif; color:#e36c0a;
font-weight:bold; }
>> .bodyclass .P6 { font-size:7.5pt;
margin-bottom:0in;
>> margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:justify
! important;
>> color:#3329b1; }
>> .bodyclass .P61 { font-size:8.5pt;
margin-bottom:0in;
>> margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:justify
! important;
>> color:#3329b1; }
>> .bodyclass .P7 { font-size:7.5pt;
margin-bottom:0in;
>> margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:justify
! important;
>> color:#3329b1; font-style:italic; }
>> .bodyclass .P8 { font-size:7.5pt;
margin-bottom:0in;
>> margin-top:0in;
>> font-family:Tahoma, sans-serif; text-align:justify
! important;
>> color:#3329b1; font-style:italic; }
>> .bodyclass .P9 { font-size:12pt;
margin-bottom:0in; margin-top:0in;
>> font-family:Times New Roman; text-align:justify !
important; }
>> .bodyclass .P91 { font-size:12pt;
margin-bottom:0in;
>> margin-top:0.05in;
>> font-family:Times New Roman; text-align:justify !
important; }
>> .bodyclass .Standard { font-size:12pt;
font-family:Times New Roman;
>> }
>> .bodyclass .T1 { color:#f79646; }
>> .bodyclass .T2 { color:#f79646;
font-family:Tahoma, sans-serif;
>> font-size:7.5pt; }
>> .bodyclass .T3 { color:#3329b1;
font-family:Tahoma, sans-serif;
>> font-size:7.5pt; }
>> .bodyclass { }
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Le futur maîtrisé
>>
>>
>>
>>
>>
>>
>>
>> Thibaut VITTE
>> Docteur - Ingénieur Energies
>> Mail :
thibaut.vitte@h3c-energies.fr
>>
>> -----------------------------
>> H3C-énergies
>> 35, chemin du vieux Chêne - 38240
MEYLAN
>> Tél : 04 76 41 88 66 – Fax : 04 76 41
28
>> 94
>>
www.h3c-energies.fr
>>
>>
>>
>>
>>
>>
>>
>>
>>
-----------------------------------------------------------------------------------
>> Afin de contribuer au respect de
l'environnement,
>> merci de n'imprimer ce message qu'en cas de
nécessité.
>> In order to respect the environment, please
don't
>> print this e-mail unless you really need to.
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>>
TRNSYS-users@cae.wisc.edu
>>
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>>
>>
>> ----- End of original message -----
>>
>>
>>
>> _______________________________________________
>> TRNSYS-users mailing list
>>
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>>
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
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>>
>
> _______________________________________________
> TRNSYS-users mailing