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Brad,<br>
There is not a model (to my knowledge) that combines the energy
dumping feature of Types4 and 60 with the more robust HX model in
Type534. It is best to handle the situation using external controls
as would probably be done in a real system being designed and built.<br>
kind regards,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 06/15/2015 17:17, Bradley Painting
wrote:<br>
</div>
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cite="mid:CAHXydCM3fgSDr+rVaEnLkN07Ej8bR9FHQWTHO6-WhGawkDeN1w@mail.gmail.com"
type="cite">
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<div>Matt,</div>
<div><br>
</div>
<div>It isn't that I am trying to limit heat transfer to the
tank, but that it is not realistic to have a tank of water
over the boiling temperature. In tank type 4 or 60 you can
set the boiling temperature so that even if heat is added
to it as at nears boiling, the component will process the
excess heat as being lost as steam. It seems like there
would be an easier way to do this than with an external
control.</div>
<div><br>
</div>
<div>If not, is there another tank type that simulates
boiling, has an internal heat exchanger, and doesn't have
any major known issues? Thanks!</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><br>
---------- Forwarded message ----------<br>
From: Matt Duffy <<a moz-do-not-send="true"
href="mailto:mduffy@aeieng.com">mduffy@aeieng.com</a>><br>
To: "TRNSYS users mailing list at OneBuilding.org" <<a
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Cc: <br>
Date: Mon, 15 Jun 2015 13:57:58 +0000<br>
Subject: Re: [TRNSYS-users] Tank Temperature Beyond
Boiling<br>
<div link="#0563C1" vlink="#954F72" lang="EN-US">
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Brad,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">The
TESS Type534 does not have any built-in heating
elements or heating energy sources. It can only
have the temperature increase if something
“upstream” (or a constant input value for the
component), an input, is adding energy to the
tank. I suggest you look closely at the components
that are adding energy to the tank and perhaps
limit that(with some kind of controller) to
prevent excessive tank temperatures.
</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Cheers,</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Matt</span></p>
<p class="MsoNormal"><span
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<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri",sans-serif">
TRNSYS-users [mailto:<a moz-do-not-send="true"
href="mailto:trnsys-users-bounces@lists.onebuilding.org"
target="_blank">trnsys-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Bradley Painting<br>
<b>Sent:</b> Saturday, June 13, 2015 10:13 PM<br>
<b>To:</b> <a moz-do-not-send="true"
href="mailto:trnsys-users@lists.onebuilding.org"
target="_blank">trnsys-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [TRNSYS-users] Tank Temperature
Beyond Boiling</span></p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">Hi,</p>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Does anyone know how to limit
the fluid temperature of the vertical
cylindrical tank 534-coiled (from TESS library)?
It is getting up to about 130 °C. I can't find a
parameter to limit this. I was using Type 60c
but ran into a bug and technical support
suggested I use this model because it has fewer
issues.</p>
</div>
<div>
<p class="MsoNormal">-- </p>
<div>
<div>
<p
style="margin:0in;margin-bottom:.0001pt;background:white"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#073763">Brad
Painting</span><span
style="font-size:10.0pt"></span></p>
<p
style="margin:0in;margin-bottom:.0001pt;background:white"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#073763">Master
of Science Candidate, Renewable Energy
Engineering</span><span
style="font-size:10.0pt"></span></p>
<p
style="margin:0in;margin-bottom:.0001pt;background:white"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#073763">Department
of Technology & Environmental Design</span><span
style="font-size:10.0pt"></span></p>
<p
style="margin:0in;margin-bottom:.0001pt;background:white"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#073763">Appalachian
State University</span><span
style="font-size:10.0pt"></span></p>
<p
style="margin:0in;margin-bottom:.0001pt;background:white"><span
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:#073763">Boone,
NC 28608</span><span
style="font-size:10.0pt"></span></p>
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<br>
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-- <br>
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<p
style="font-size:13px;background-color:rgb(255,255,255);margin:0px"><font
color="#073763" face="arial, helvetica, sans-serif">Brad
Painting<br>
</font></p>
<p
style="font-size:13px;background-color:rgb(255,255,255);margin:0px"><font
color="#073763" face="arial, helvetica, sans-serif">Master
of Science Candidate, Renewable Energy Engineering<br>
</font></p>
<p
style="font-size:13px;background-color:rgb(255,255,255);margin:0px">
<font color="#073763" face="arial, helvetica,
sans-serif">Department of Technology &
Environmental Design</font></p>
<p
style="font-size:13px;background-color:rgb(255,255,255);margin:0px"><font
color="#073763" face="arial, helvetica, sans-serif">Appalachian
State University</font></p>
<p
style="font-size:13px;background-color:rgb(255,255,255);margin:0px"><font
color="#073763" face="arial, helvetica, sans-serif">Boone,
NC 28608</font></p>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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