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<p>Ravinda,</p>
<p> There is a pressure reducing valve component in the TESS CHP
library. It is typically used in steam applications and assumes
steam as the working fluid. </p>
<p> Typically we do not model refrigeration systems at the heat
exchanger / compressor / expansion valve level but take the whole
cycle as a component. The time constant of the transient behavior
within the refrigeration cycle is so small that a typical TRNSYS
time step (1-5 minutes in the kind of systems that we work with)
that the refrigeration loop can be seen as steady state. We
therefore assign a COP that is dependent on the external inlet
conditions (such as temperature and humidity of the air on the
condenser and evaporator sides).</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 12/19/2017 04:19, v ravindra via
TRNSYS-users wrote:<br>
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<blockquote type="cite"
cite="mid:CADb1Z3LpOCBpD7Wgn83wS+iesJm5tiBZJz=-o8C9g29-TRoTQg@mail.gmail.com">
<div dir="ltr">What is the component that models a Throttle valve
used in Refrigeration cycles in TRNSYS.
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<div dir="ltr">V.Ravindra<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>
<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>
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