[TRNSYS-users] Modelling a cooling coil Type 123

[David BRADLEY]

Max,

  If you have access to the TESS HVAC library you will find a Type508 
cooling coil model that includes the control mode that you are looking for.

kind regards,

  David


On 10/07/2021 02:35, Max Philipp Krebs via TRNSYS-users wrote:
> Hi there,
>
> I have a question concerning a cooling coil.
>
> I want to model a cooling coil Type 123. My goal is to implement a set
> temperature for the outlet fluid temperature. For example: Cooling power
> should only be provided if the inlet air temperature is above 20°C and
> then the coil should have a set temperature for the outlet air temperature
> to be around 21°C.
> How can I do this? On/Off Controller doesn't work because there is always
> the error that the cooling capacity must be greater than 0 which obviously
> isnt the case if the inlet temperature is below 20°C.
> I have tried it with an equation and a gt-function but the result isnt
> satisfying.
>
> Thanks for your help!
>
> Regards,
> Max
>
>
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-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
d.bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

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