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<p>Javier,</p>
<p> If you need properties from the fluids that are not in the
FluidProperties() routine then you would need to add them by
modifying the Fluids.f90 source code file and then to recompile
the TRNDll using a Fortran compiler.</p>
<p> Before you try to modify that file, however, I'd like to
understand a bit more about the heat pump model that you want to
write. For a number of reasons, TRNSYS's heat pump models
(primarily in the TESS HVAC Library) rely on a catalog data lookup
approach instead of being first principals models. By looking up
the capacity and COP at certain operating conditions the models do
not rely on the refrigerant properties, which makes for a more
flexible and easy to implement model. If you'd like to send me an
email directly, please feel free to do so. With a little more
explanation about what you're looking for in a heat pump model I
may be able to give you some additional direction.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 01/13/2017 14:33, Javier Vega via
TRNSYS-users wrote:<br>
</div>
<blockquote
cite="mid:CAEju=PqQw-WG5Xm8XovN9hwhHVFW3Sb0JUKGbXc=m8E7O=EEow@mail.gmail.com"
type="cite">
<div dir="ltr">Hello TRNSYS users,
<div><br>
</div>
<div>I'm looking forward to program my own heat pump Type
component. I was checking on the programmer's guide to get
familiar with FORTRAN (first time I'm going to write in this)
and the different functions in general.</div>
<div><br>
</div>
<div>For now, all is OK except for the refrigerants listed in
the Fluid Properties. Preferably, I would like to simulate a
heat pump using R410a, which doesn't seem to be in the
refrigerants available. What are my options?</div>
<div><br>
</div>
<div>Thank you very much,</div>
<div>Javier Vega</div>
<div>Mechanical Engineering Student, Universidad de Concepción,
Chile</div>
<div><br>
</div>
<div><br>
</div>
</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>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
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