[TRNSYS-users] (no subject)

[David BRADLEY]

Usually you have to use some combination of thermostat models (which 
compare a temperature to a set point), differential controllers (which 
operate based on a temperature difference instead of on absolute 
values), and equations, which combine the outputs of the individual 
thermostats together. You'll probably need to use some of the boolean 
functions such as GT(:,:). It returns a 1 if the first argument is 
greater than the second. There are also functions such as AND(:,:), 
which will return a 1 only if both of the arguments are 1. I would start 
out by creating a truth table using your input variables (house 
temperature, tank temperature, collector temperature) and fully define 
how the valve should be set for all sensed temperatures. From there the 
truth table can be turned into one or more equations.

kind regards,

  David


On 05/14/2022 03:57, berkane ahlem via TRNSYS-users wrote:
> Dear Users,
> in GSHP systems, the diverting Valve- will generally send all of its 
> input flow to house but if the house is warm enough and the tank is 
> cold while the collector is cold too, this valve will send all of its 
> input to tank. how can i wright a  control function gor this diveting 
> valve
> Regards
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at lists.onebuilding.org
> http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org

-- 
***************************
David BRADLEY
Principal
Thermal Energy System 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20220516/ddb372f4/attachment.htm>