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<p class="MsoNormal">Thank you for your suggestion. I understand the idea to have a lump capacitance to represent the zone and then control its temperature. However, I only know the type 690 which input refers to an air flow rate. Is there a corresponding type
to use in a water-water heat pump, so with a water flow rate?<span lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal">Thank you again.<br>
<br>
kind regards,<br>
<br>
Jacopo</p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="border:none;padding:0cm"><b>Da: </b><a href="mailto:d.bradley@tess-inc.com">David BRADLEY</a><br>
<b>Inviato: </b>lunedì 16 maggio 2022 20:00<br>
<b>A: </b><a href="mailto:trnsys-users@lists.onebuilding.org">TRNSYS users mailing list at OneBuilding.org</a><br>
<b>Cc: </b><a href="mailto:jacopovalente@LIVE.IT">Jacopo Valente</a><br>
<b>Oggetto: </b>Re: [TRNSYS-users] water-water heat pump simulation</p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>Jacopo,</p>
<p> This is a little bit tricky; the problem is that the loads you have are presumably instantaneous heating and cooling loads. If your delivery device were something without a lot of thermal mass (like zonal heat pumps or some fan coils) then I would recommend
that you impose the loads directly onto the liquid stream. However, the radiant floor has a lot of thermal mass of its own. I think the best approach would be to impose your loads on a lumped capacitance that is tuned to mimic the zone. Then you can define
a radiant floor using Type653 in order to control the temperature of the lumped capacitance that has your original building loads imposed upon it.</p>
<p>kind regards,</p>
<p> David</p>
<p><o:p> </o:p></p>
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<p class="MsoNormal"><span style="color:black">On 05/16/2022 09:16, Jacopo Valente via TRNSYS-users wrote:<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:black">Dear trnsys users,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">I’m simulating a ground water source heat pump for residential conditioning system. I have the hourly load profile of the building and i’m not using the type56. However my system has radiant floor as emmiter and
i see that it’s possible to use type653 only with building type56. </span><span style="font-family:"Cambria Math",serif;color:black">I’m looking for a way to simulate this kind of implant, i try with type 690 but i’m not sure it’s right for a water system.
Any suggestions to simulate my implant without type56?<br>
<br>
Thank you every all<br>
</span><span style="color:black"><br>
Best regards,<br>
Jacopo Valente<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________</pre>
<pre>TRNSYS-users mailing list</pre>
<pre><a href="mailto:TRNSYS-users@lists.onebuilding.org">TRNSYS-users@lists.onebuilding.org</a></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></pre>
</blockquote>
<pre>-- </pre>
<pre>***************************</pre>
<pre>David BRADLEY</pre>
<pre>Principal</pre>
<pre>Thermal Energy System Specialists, LLC</pre>
<pre>3 North Pinckney Street - suite 202</pre>
<pre>Madison, WI 53703 USA</pre>
<pre><o:p> </o:p></pre>
<pre>P:+1.608.274.2577</pre>
<pre><a href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a></pre>
<pre><o:p> </o:p></pre>
<pre><a href="http://www.tess-inc.com">http://www.tess-inc.com</a></pre>
<pre><a href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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