>
>
> 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
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>>
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>>
>> To subscribe or unsubscribe via
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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
>>
TRNSYS-users@cae.wisc.edu
>>
https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>>
>>
>
>
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