[TRNSYS-users] Need in monitoring the temperature in type 56 model

David BRADLEY d.bradley at tess-inc.com
Mon Aug 1 12:20:48 PDT 2011


Rakesh,
   It looks as though you are passing some incorrect variables back to 
the building model and that the variables you are passing (T_HEATING, 
T_COOLING, and RH_COOLING) are defined in the building but aren't 
actually implemented in your zone. The inputs that you need to pass from 
the furnace model to the building model are the furnace's outlet air 
temperature, RH, and flow rate. You will need to open TRNBuild and 
define a VENTILATION type in your zone. A couple hints:

1. Specify that you are going to provide air flow rate as a mass flow 
and change the flow rate from a constant value (the default) to an 
input.  Give the input a name like MVNT_55FC41
2. Specify that you are going to provide the temperature of the 
ventilation air as an input. Give the input a name like TVNT_55FC41.
3. Specify that you are going to provide the humidity of the ventilation 
air as an input and as an RH (which is the default). Give the input a 
name like RHVNT_55FC41.

When Type56 talks about ventilation, it means a stream of air, not 
necessarily the zone's fresh or outdoor air as is sometimes traditional 
in the US.
best,
  David


On 7/26/2011 15:08, Rakesh Kaushik wrote:
> Dear trnsys user,
>
> I created a type-56 3D model for a zone, and I introduced the type 108 
> thermostat to monitor the temperature in the zone with the help of 
> fan, furnace and auxiliary cooling unit, and I need little help to 
> figure what I am doing wrong I attached my model with this email.
>
> Thank you very much in advance
>
> Regards,
> *Rakesh Kaushik*
> Graduate Student
> Department of Mechanical Engineering
> University of Dayton
> rakeshkaushik25 at gmail.com <mailto:rakeshkaushik25 at gmail.com>
> Cell: 937-239-5924
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://mailman.cae.wisc.edu/listinfo/trnsys-users

-- 
***************************
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
d.bradley at tess-inc.com

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

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