<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>Ilyas,</p>
<p> In addition to making sure that there is enough thermal
capacitance in your system, you need to look carefully at the
timestep you choose. TRNSYS can make only one control decision per
timestep. If you are running a system with a 1 hour timestep that
means that if the decision is to turn on a heater then the heater
will stay on for at least 1 hour, very likely overheating the
space.</p>
<p> I would recommend that you follow through the tutorial called
"Temperature Level Control from Energy Rate Control" that can be
found at
<a class="moz-txt-link-freetext" href="http://sel.me.wisc.edu/trnsys/downloads/tutorials_and_examples/tutex17.htm">http://sel.me.wisc.edu/trnsys/downloads/tutorials_and_examples/tutex17.htm</a>.
It addresses some of the issues that you are likely to find.</p>
<p> Also, if you have access to the TESS HVAC library, you will
find a lot of models of the devices that you need for heating and
cooling building zones.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 01/18/2017 11:41, Ilyas KHELIFA
KERFAH wrote:<br>
</div>
<blockquote
cite="mid:DB5PR01MB1111E7D5809875CFE2AFADE6E07F0@DB5PR01MB1111.eurprd01.prod.exchangelabs.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
<div id="divtagdefaultwrapper"
style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif;"
dir="ltr">
<div id="divtagdefaultwrapper" dir="ltr" style="font-size:12pt;
color:#000000; font-family:Calibri,Arial,Helvetica,sans-serif">
<p
style="font-family:Calibri,Arial,Helvetica,sans-serif,"Apple
Color Emoji","Segoe UI
Emoji",NotoColorEmoji,"Segoe UI
Symbol","Android Emoji",EmojiSymbols;
font-size:16px">
Hi, </p>
<p
style="font-family:Calibri,Arial,Helvetica,sans-serif,"Apple
Color Emoji","Segoe UI
Emoji",NotoColorEmoji,"Segoe UI
Symbol","Android Emoji",EmojiSymbols;
font-size:16px">
</p>
<div><br>
</div>
<span>I have a gas heating system installed in the corridor of
an apartment. As I have not found a good component for my
case in the TRNSYS studio. I put only one calculator in the
studio to calculate the power (= calorific value of gas *
efficiency * flow). This flow is controlled with a
regulator. But I see in my figures that the temperature
increases in a single stroke. And its not logical because
the temperature should increase gradually. Maybe you have an
idea or a component of TRNSYS that I can use it so that the
power does not increase quickly.</span><br>
<div style="color:rgb(0,0,0)">
</div>
</div>
<div id="divtagdefaultwrapper" dir="ltr" style="font-size:12pt;
color:#000000; font-family:Calibri,Arial,Helvetica,sans-serif">
<span><br>
</span></div>
<div id="divtagdefaultwrapper" dir="ltr" style="font-size:12pt;
color:#000000; font-family:Calibri,Arial,Helvetica,sans-serif">
<div>thank you.</div>
<div>Cordially.</div>
<br>
</div>
</div>
</blockquote>
<br>
<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>
</body>
</html>