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<p>Chris,</p>
<p> You can absolutely send the airflow into one airnode and return
it from another. You're on the right track with using coupling
between airnodes but you don't need to define anything bogus.
Create a VENTILATION type in the airnode that contains the supply.
Specify that temperature, relative humidity and flow rate will be
inputs to Type56 and in the Studio, pass the outputs of your
conditioning device to those inputs. Define a coupling flow rate
from the node where the supply is located to the node where the
return is located. Back in the Studio, take the temperature and RH
of the air of the return air node as the inputs to the return air
side of your conditioning system.</p>
<p>best</p>
<p>David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 08/28/2017 15:31, Christopher
McNevin via TRNSYS-users wrote:<br>
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<p>Hello All,</p>
<p><br>
</p>
<p>I am wondering if if it possible to model a space with where
return air is sent from one node to an air-conditioning system
and is then supplied to a different node. This space has a
stack of several air nodes. The supply would be at the top,
and the return at the bottom.</p>
<p>As far as I can tell, type 56 supplies and returns
ventilation air to the same node. Is there a way to get around
this?</p>
<p><br>
</p>
<p>My current thought it to use airnode coupling between each
node going down the stack and then adding a bogus node which
is set to a temperature and humidity equivalent to the
air-conditioners output conditions. This bogus node would then
be coupled to the top node. The air-conditioner would use the
air temperature and relative humidity of the bottom node as
its input air conditions to determine the output conditions.</p>
<p><br>
</p>
<p>Thanks for your help,</p>
<p>Chris, MASc</p>
<p>Research Assistant</p>
<p>Queen's University</p>
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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
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