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<p>Type941 models a heat pump that has a single speed compressor and
a single speed fan. The device's capacity (the maximum amount of
energy that it can transfer to/from the air) is a function of the
inlet water temperature and the inlet air dry bulb temperature. It
is not a function of the air flow rate. Changing the air flow rate
will change the air outlet temperature but not the energy
transferred to/from the air. <br>
</p>
<p>As a side note, there are some models of multistage and variable
speed compressor heat pumps in which the capacity is a function of
the air flow rate as well as of the inlet temperatures.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 06/07/2022 10:59, Jen parken via
TRNSYS-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:82291274.447406.1654617548927@mail.yahoo.com">
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<div class="yahoo-style-wrap" style="font-family:Helvetica Neue,
Helvetica, Arial, sans-serif;font-size:16px;">
<div dir="ltr" data-setdir="false">hello all</div>
<div dir="ltr" data-setdir="false">I have a question about type
941 </div>
<div dir="ltr" data-setdir="false">why whenever i change the
amount of inlet air flow rate, the value of "heat transfer to
air" doesn't change?</div>
<div dir="ltr" data-setdir="false">even though the value of
output air flow rate (output6) changes when i change the value
of the inlet flow rate </div>
<div dir="ltr" data-setdir="false">I went through the equations
in the documentation and i found that the heat transfer to air
depends on the flow rate</div>
<div dir="ltr" data-setdir="false">please correct me if i am
wrong</div>
<div dir="ltr" data-setdir="false">thanks </div>
</div>
<br>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy System Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI 53703 USA
P:+1.608.274.2577
<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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