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<p>Khoa Le,</p>
<p> I would encourage you to look at the Type1231 documentation
and/or source code. It is not a complicated Type mathematically
and I suspect that you could use its governing equations to adjust
the model's parameters and obtain the kind of delta T that you are
observing in your measurements.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 04/05/2018 18:05, Le Khoa via
TRNSYS-users wrote:<br>
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<blockquote type="cite"
cite="mid:CAG4rOyKgK23NzFrbMjZGweybnpLcu6T5NMyGWgTPeiXQaUy=pg@mail.gmail.com">
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<div class="gmail_default" style="font-size:small;color:#0b5394">Hi
everyone,</div>
<div class="gmail_default" style="font-size:small;color:#0b5394"><br>
</div>
<div class="gmail_default" style="font-size:small;color:#0b5394">I
have modeled the system comprising of a variable capacity heat
pump (custom component) transferring heat to the house via
radiators Type 1231 (TESS library). From the simulation
results, the differences between entering and leaving water
temperature of radiators are within 7 Celcius, meaning the
heat pump quickly operates at the lowest part load. However, I
want to increase those temperature differences about more than
10 Celsius, as observed from our measurement results, in order
to force the heat pump to work at higher load. I have tried to
alter the parameters of Type 1231 but it seems to be
uninfluenced. I see if changing the flow rate can alter those
differences, but that is not right for my model which affects
the heat pump side. </div>
<div class="gmail_default" style="font-size:small;color:#0b5394"><br>
</div>
<div class="gmail_default" style="font-size:small;color:#0b5394">Could
you please help me if possible?</div>
<div class="gmail_default" style="font-size:small;color:#0b5394"><br>
</div>
<div class="gmail_default" style="font-size:small;color:#0b5394">Thank
you.<br>
</div>
<div class="gmail_default" style="font-size:small;color:#0b5394">
<br>
</div>
<div>
<div class="gmail_default"
style="font-size:small;color:rgb(11,83,148)">Khoa Le.</div>
<br>
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<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>
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