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Re: [TRNSYS-users] Insert new equation



Concerning my precedent mail, i haven't seen that the air flow temperature was equal to outside temperature from 0h to 9h and from 18h 24h!

In that way, you just have to define one Forcing Function which is 1 from 9 to 18h. This forcing function will be connected to Input1 for Equation Window.

Then, in equation window, define ouput like below :

Output = 23*Input1 + Text*NOT(Input1)

Since NOT(Input1) =
- 0 when Input1 (Forcing Function) = 1
- 1 when Input1 (Forcing Function) = 0

Sorry for the desagrement,

Best regards Adrien

Chehal, Samir a écrit :

Dear all,

I must insert new equation to define a temperature of air flow.

The schedule of temperature air flow is:

23°C between 9h and 18h

outside temperature between 0h and 9h , and between 18h and 24h

and this during the entire year.

I would know what function allow this scenario and what represent different functions (GE,NE,MIN,MOD,….) and how I must use them.

_NB_: I defined air flow temperature like an input in TRNBUILD.

Best regards.

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Adrien JEZEQUEL	
ITF (Ingénierie Tous Fluides)
87, route de Chambéry
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Mail : a.jezequel@itf.biz