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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Dave,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">I hope you all are doing well.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">This morning I’m trying to shorten my open issue list. I wonder if you have send already the final version for 2019-II?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Marion<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Marion Hiller<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">+49 711 679 76 32 |
</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#4472C4">hiller@transsolar.com</span><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Transsolar SoftwareEngineering<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Stuttgart | Munich | Paris | New York<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Transsolar Energietechnik GmbH | Curiestrasse 2 | 70563 Stuttgart | Germany<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">CEO: Matthias Schuler, Thomas Auer, Stefan Holst, Dieter Schnelle
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#A6A6A6">Registered at Amtsgericht Stuttgart HRB 23347 | USt-IdNr.: DE 152272639<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>Von:</b> TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org>
<b>Im Auftrag von </b>David BRADLEY via TRNSYS-users<br>
<b>Gesendet:</b> Montag, 23. März 2020 13:43<br>
<b>An:</b> TRNSYS users mailing list at OneBuilding.org <trnsys-users@lists.onebuilding.org><br>
<b>Cc:</b> David BRADLEY <d.bradley@tess-inc.com><br>
<b>Betreff:</b> Re: [TRNSYS-users] Floor Heating - Trnsys3D<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>Hoofar,<o:p></o:p></p>
<p> If you click on the "Geometry Modes" button in a given zone you can switch one or more zones to "manual mode." This allows you to create the geometry in Trnsys3d but then autosegment the floors of a particular zone afterwards. The disadvantage, of course,
is that once you switch a zone to manual mode you cannot then go back and edit the building geometry in Trnsys3D.<o:p></o:p></p>
<p><o:p> </o:p></p>
<p> If you do not want to switch to manual mode then here are some responses to your questions:<o:p></o:p></p>
<p><o:p> </o:p></p>
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<p class="MsoNormal">1) How should <span style="color:black;background:white">be </span>
the surfaces split in Trnsys3D? Have I used the right approach?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I believe that what you've done is reasonable. The autosegment feature puts a number of smaller floor areas in series.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">2) How can they be manually connected? (when the Autosegmentation is done, surfaces are automatically connected in series with automatic inlet temperature and the same inlet flow rate)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I think you will need to do this by adding outputs and inputs to your Type56 model. The connections will need to be done outside of Type56 in the Simulation Studio.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">3) After splitting the floors, which output shows the overall heat transfer to the zone and which one shows the final outlet fluid temperature?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I think that for the overall heat transfer to the zone you'll need to sum up a number of Type556 outputs. The overall heat transfer to the zone will be the sum of the heat transfer to the zone from each individual floor piece. The final
outlet temperature will depend upon the order in which you connect the floors to one another in the Simulation Studio. I'd suggest using the surface IDs that TRNBuild assigns and drawing a picture so that you can keep all the connections straight.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">4) What should be the standard number of fluid loops per square meter?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">There is an equation in the TRNBuild/Type56 manual that suggests a way of computing the number of loops based on how long you want each individual pipe to be.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">kind regards,<o:p></o:p></p>
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<p class="MsoNormal"> David<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p><o:p> </o:p></p>
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<p class="MsoNormal">On 03/21/2020 11:38, Hemmatabady, Hoofar via TRNSYS-users wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hello,<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">I am working on a project on heating a house with a heat pump. I designed a Trnsys3D model of the house, which I need to implement a floor heating system on it. After adding an active layer in
TRNbuild, got the error "Specific fluid mass flow of active layer in surface 16 below minimum value of 2.96 kg/m2h Please, increase the minimum mass flow rate or use the autosegmentation feature of TRNBuild for subdividing the surface.".<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">As I have a 3d model, the Autosegmentation is not possible. Therefore, following TRNbuild documentation "For airnodes with 3D geometric information the splitting of surfaces have to be done in
Trnsys3D and then manually connected", I split my floors (in Sketchup) into 20 equal surfaces using parallel lines and imported my 3d model back to TRNbuild. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Here are my questions:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">1) How should <span style="background:white">
be </span>the surfaces split in Trnsys3D? Have I used the right approach?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">2) How can they be manually connected? (when the Autosegmentation is done, surfaces are automatically connected in series with automatic inlet temperature and the same inlet flow rate)<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">3) After splitting the floors, which output shows the overall heat transfer to the zone and which one shows the final outlet fluid temperature?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">4) What should be the standard number of fluid loops per square meter?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Best regards<o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hoofar Hemmatabady<o:p></o:p></span></p>
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<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
</div>
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<p class="MsoNormal"><br>
<br>
<o:p></o:p></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>TRNSYS-users mailing list<o:p></o:p></pre>
<pre><a href="mailto:TRNSYS-users@lists.onebuilding.org">TRNSYS-users@lists.onebuilding.org</a><o:p></o:p></pre>
<pre><a href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a><o:p></o:p></pre>
</blockquote>
<pre>-- <o:p></o:p></pre>
<pre>***************************<o:p></o:p></pre>
<pre>David BRADLEY<o:p></o:p></pre>
<pre>Principal<o:p></o:p></pre>
<pre>Thermal Energy Systems Specialists, LLC<o:p></o:p></pre>
<pre>3 North Pinckney Street - suite 202<o:p></o:p></pre>
<pre>Madison, WI 53703 USA<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>P:+1.608.274.2577<o:p></o:p></pre>
<pre>F:+1.608.278.1475<o:p></o:p></pre>
<pre><a href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre><a href="http://www.tess-inc.com">http://www.tess-inc.com</a><o:p></o:p></pre>
<pre><a href="http://www.trnsys.com">http://www.trnsys.com</a><o:p></o:p></pre>
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