Re: [TRNSYS-users] Insert new equation

[Adrien JEZEQUEL <a.jezequel@itf.biz>]

Dear Samir,

To define your temperature air flow, you can use forcing functions from 
"Utility" Library:

- Forcing Function 1 = 1 from 9h to 18h
- Forcing Function 2 = 1 from 18h to 24h

Then, connect the ouputs to an equation window:

- Output Forcing Function 1 = Input1 Equation Window
- Output Forcing Function 2 = Input2 Equation Window

define an other input for the external temperature (which can be called 
"Text")

Then define an Output in equation window :

Output = 23*Input1 + Text*Input2

The output defined above will describe temperature air flow profile 
every day of the year.

Concerning the equation functions see the manual 'Volume 7- TRNEdit', 
section 7.2.9 'The EQUATIONS Statement" for a complete description.

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)
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Mail : a.jezequel@itf.biz