[TRNSYS-users] type 88 independant rooms ?

David BRADLEY d.bradley at tess-inc.com
Wed May 16 09:03:04 PDT 2012


Sara,
  There is not a limitation on the number of Type88s that you can have 
in a simulation. I would recommend that if you are trying to maintain a 
particular temperature in the rooms, you use Type108 instead of Type2. 
Type2's controls are based on temperature differences, not on a specific 
temperature set point. While Type2 can be set up in order to maintain a 
specific temperature Type108 is somewhat more intuitive.
Kind regards,
  David


On 5/16/2012 03:20, Guilbert Sara wrote:
>
> Hi all,
>
> I modeled on trnsys a chilled water system with two type 88, two fans 
> (type 3), two coils (type 52), two type 92 and just one pump (type 110)
>
> I regulate the room’s temperature with a controller (type 2)
>
> I don’t know why but I change the upper dead band dt for one room like 
> 25 °C for the first room and 24°C for the other room and when I start 
> the simulation the both room are going to 25°C, the two rooms have 
> exactly the same behavior. The two rooms have always the same behavior 
> with different features at the beginning.
>
> Maybe because I can’t use two type 88 in the same project or something 
> like that.
>
> Thank you for your help
>
> Sara
>
>
>
> _______________________________________________
> 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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