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Adam,<br>
You should be in contact with your TRNSYS distributor to get the
latest TESS Libraries release as it includes documentation for
Type941. <br>
<br>
To answer your specific questions, yes, you do still have to
provide a cooling data file to the model even if you're not going to
use the heat pump in cooling mode. You don't need to worry about the
contents of the file and can simply use the one that is provided by
default.<br>
<br>
The data in both the heating and cooling performance files are
normalized. Each performance value is divided by that same
performance value at the heat pump's rated condition. The value at
the rated condition is provided as a parameter to the model. For
example, if the heat pump's rated heating capacity is 0.6kW and its
heating capacity at current operating conditions is 0.8 kW then the
normalized heating capacity value entered into the data file would
be 0.8/0.6=1.333.<br>
<br>
As a final note, when heat pump performance data files are
normalized they end up looking very similar to one another so
chances are that you can use the data file that is provided as an
example and be quite close to the actual performance of the heat
pump that you are planning to use.<br>
Best,<br>
David<br>
<br>
<br>
<div class="moz-cite-prefix">On 12/17/2014 08:44, Adam O' Donovan
wrote:<br>
</div>
<blockquote
cite="mid:CAJU3Uzkb=pxJ+Jyxi_d4y1EjHSN4QPp=+zXgoT2es5jU18hyyg@mail.gmail.com"
type="cite">
<div dir="ltr">Hi TRNSYS users,
<div><br>
</div>
<div>I am currently modelling a heating system where the system
is served by an air to water heat pump. I cannot seem to find
the documentation on this and I was wondering if anyone knew
what details need to be specified in the .dat file for heating
and cooling. As the heat pump I have does not cool the DHW
system what must I specify in the dat file. </div>
<div><br>
</div>
<div>For the heating .dat file what is meant by "!Fraction
capacity and power" what are the capacity and power divided by
to give these fractions.</div>
<div><br>
</div>
<div>Thank you,</div>
<div><br>
</div>
<div>Adam.<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail_signature">
<div dir="ltr">
<div>
<div dir="ltr">
<div>
<div>Kind Regards,</div>
<div> </div>
<div>Adam Ó Donnabháin,</div>
<div>Postgraduate Researcher,</div>
<div>CIT,</div>
<div> </div>
<div> </div>
<div> </div>
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<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
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