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Guy,<br>
To add to the email that Marcus sent, Type92 actually modulates its
energy use to meet whatever setpoint temperature you want it to as long
as the control signal is set to 1. If the control signal is set to 0,
it doesn't provide any cooling. In a sense, when active, it has
"perfect" control. Marcus is quite correct that it doesn't model any
psychrometrics on the air side; you could attach it to a Type33 in
order to figure out the outlet air condition but given its controls, it
isn't ideal. The second thing you should look at is exactly how you
want your PID controller to work. A PID controller typically adjusts a
damper position, a fan speed or a pump speed to keep some outlet
(temperature, flow rate, etc.) at a set point. There are very few
cooling devices where a PID controller would watch a zone temperature
and be connected directly to a cooling capacity adjustment. I would
suggest that you look through the TESS HVAC library as it contains a
number of cooling devices. Once you choose the device, its controls
should be fairly easy to determine.<br>
Best,<br>
David<br>
<br>
<br>
Guy THOMAS wrote:
<blockquote cite="mid:BLU110-W24EB76F2F7EE4A75B00F1CD7270@phx.gbl"
type="cite">
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--></style>Hello
everybody,<br>
I'm passing a ventilation stream in my type 56 zone in Simulation
studio (after have put temperature, flowrate and RH as inputs in
TRNBuild). I am passing the flowrate in type 92 to cool it. And I would
like to watch the zone temperature and control it with an PID
controller type 23. <br>
But the type 92 have a control function as input and not a cooling rate.<br>
So, is it possible to put a maximum cooling rate in the parameter of
type 92 and connect the control signal from type 23 to type 92 control
function (in the type 23 parameter i have put a control signal varying
between 0 and 1) to control the temperature?<br>
Or is there other solution to cool the air with a PID controller?<br>
Best regards<br>
Guy THOMAS<br>
Etudiant CNAM Paris <br>
<br>
<hr>Télécharger en toute sécurité sur Internet ? <a
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href="http://clk.atdmt.com/FRM/go/206608211/direct/01/" target="_new">La
solution avec Internet Explorer 8</a>
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