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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Hi Ragnhild,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">do you have a plant control loop? When is the pump on/off?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Kind regards,
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black">Monika<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#525252">------------------------------------------------------------<br>
Fachhochschule Nordwestschweiz<br>
Hochschule für Architektur, Bau und Geomatik<br>
Institut Energie am Bau<br>
<br>
Dr. Monika Hall<br>
Wissenschaftliche Mitarbeiterin<br>
St. Jakobs-Strasse 84<br>
4132 Muttenz<br>
------------------------------------------------------------<br>
T +41 61 467 45 61<br>
F +41 61 467 45 43<br>
monika.hall@fhnw.ch<br>
www.fhnw.ch<br>
------------------------------------------------------------</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">Von:</span></b><span lang="DE" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> esp-r-bounces@lists.strath.ac.uk [mailto:esp-r-bounces@lists.strath.ac.uk]
<b>Im Auftrag von </b>Ragnhild Haukland Løge<br>
<b>Gesendet:</b> Montag, 25. November 2013 13:17<br>
<b>An:</b> esp-r<br>
<b>Betreff:</b> [esp-r] slab-on-grade hydronic floor<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Hello,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I have a simple model of a building with a solar heating system. The solar heating system consists of the following components:<o:p></o:p></p>
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<p class="MsoNormal">-simplified flat plate collector<br>
-slab-on-grade hydronic floor<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">-variable speed domestic WCH pump<o:p></o:p></p>
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<p class="MsoNormal">I have the following connections:<o:p></o:p></p>
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<p class="MsoNormal">collector->hydronic floor<o:p></o:p></p>
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<p class="MsoNormal">hydronic floor->pump<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">pump->collector<o:p></o:p></p>
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<p class="MsoNormal">And containments:<o:p></o:p></p>
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<p class="MsoNormal">collector: ambient air<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">hydronic floor: node within a surface: ground floor inserted into node 2 (within a concrete layer)<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">When i run the simulations with and without the plant network, I get the same temperatures inside the building. Hence, it does not seem like the solar heating system is contributing to any heat through the floor
into the building zone at all. <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">My question is: Does anyone know if I have to link the plant network in a different way or if I may have overlooked something in order to get the solar heating system to contribute to heat inside the building.<o:p></o:p></p>
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<p class="MsoNormal">Kind regards,<br>
Ragnhild Løge<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal"><br>
-- <br>
Med vennlig hilsen,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Ragnhild Haukland Løge<o:p></o:p></p>
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