[TRNSYS-users] heat exchangere

[David BRADLEY]

Elly,
   If you have the TESS HVAC library, there are a number of heat 
exchangers with controlled outlet temperature models in there. If not 
then you will need to use a variable speed pump (Type3) , the heat 
exchanger, and (most likely) a PID controller (Type23).
Best,
  David


On 12/13/2010 15:24, e.nicolazzi at libero.it wrote:
>
> Dear Transys-user,
>
> I'm simulating, with trnsys 16, a plate heat exchanger for district heating
> substation. I'm using type 5b, is it correct?
> There's a control unit that in function of external temperature and the hot-
> side outlet temperature (secondary pipe) open or close (%) the valve in the hot-
> side inlet temperature (primary pipe).
> Can someone tell me how can i model a control unit? which types can i use?
>
> Thanks in advance,
> Elly
>
>
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-- 
***************************
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