<html>
<head>
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Ware,<br>
The example is intended to show you some ways of using Type42; it
is not a very good example of a realistic device heating a tank. If
you add the output of the controller to the online plot so that you
can see the Type42 "heat pump" control signal you'll notice that the
heat pump is on continuously through the length of the simulation;
it does not have enough capacity to return the tank to its set point
temperature. The fluctuations in tank temperature are the result of
the varying water draw on the tank.<br>
kind regards,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 04/12/2016 03:30, Ware wrote:<br>
</div>
<blockquote cite="mid:tencent_6CBB2B021EC921420EF42D23@qq.com"
type="cite">
<div>Sorry about the surubbed <span style="font-family: 'Segoe UI', monospace; font-size: medium; line-height: normal; white-space: pre-wrap;">HTML attachment .</span></div>
<div><span style="font-family: 'Segoe UI', monospace; font-size: medium; line-height: normal; white-space: pre-wrap;">Here is my question:</span></div>
<div><span style="font-family: 'Segoe UI', monospace; font-size: medium; line-height: normal; white-space: pre-wrap;">
</span></div>
<div>When i simulate the project in<span style="line-height: 1.5;">:\trnsys17\examples\reading
data files\performance_map_data, </span><span
style="line-height: 1.5;">the case is the second one.</span></div>
<div>I find the outlet temperature of type4a ranges from 35℃ to
41℃,<span style="line-height: 1.5;">while the setpointtemp is
45±1℃，it seems the tempcontroller doesn't</span><span
style="line-height: 1.5;">work well, i have tried to reduce
the</span><span style="line-height: 1.5;">timestep smaller,but
nothing changes…</span></div>
<div><br>
</div>
<div>Have anyone simulated the case?</div>
<div>thanks in advance.</div>
<div>Ware</div>
<div>BR</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
TRNSYS-users mailing list
<a class="moz-txt-link-abbreviated" href="mailto:TRNSYS-users@lists.onebuilding.org">TRNSYS-users@lists.onebuilding.org</a>
<a class="moz-txt-link-freetext" href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a>
</pre>
</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>