[TRNSYS-users] Tempering valve for cooling application ??

santeri siren santeri.siren.laatikko at gmail.com
Tue Nov 12 10:06:44 PST 2013

Dear Trnsys users,

I would need a component that can be used for diverting return flow rate
from a cooling coil so that part of it goes back to the cooling source and
part is mixed with the inlet flow rate. The idea is to keep the cooling
fluid inlet temperature at its set point. *(Please see the
attachment!).*So in a way you could say that it’s a reverse
application for a tempering

I have tried to implement this combining a flow diverter (Type 11f), a flow
mixer (type 11h) and an iterative feedback controller (type 11h). However I
it seems to be very difficult to get the controller to work properly and
without convergence (Is it possible at all?).

So my question is that what would you suggest to be the best way to do
this? Can this be done with the basic TRNSYS components (e.g.type 11f), or
is there a component in some TESS library that is designed for this kind of

Best regards,

*Santeri Siren *
Project engineer, M.Sc
*Skanska Talonrakennus Oy*
Building systems and Energy
PL 114
00101 Helsinki, Finland
Street: Nauvontie 18
Phone +358401365633
santeri.siren at skanska.fi<https://access2.se.skanska.net/owa/redir.aspx?C=uixALwGYEkWkSY6HzfjC6S1PmdNos9AIbdqZljzqQTXRD_rU2nhQ7f7w3_ppsVH0NOhka5OdQDQ.&URL=mailto%3asanteri.siren%40skanska.fi>
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