Re: [TRNSYS-users] (no subject)

[David BRADLEY <d.bradley@tess-inc.com>]

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 

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David BRADLEY
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Thermal Energy System Specialists, LLC
3 North Pinckney Street - suite 202
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