Re: [TRNSYS-users] Using operators within the Equation Component

To: Javier Galvan Villamarin <jgalvan@kth.se>

Subject: Re: [TRNSYS-users] Using operators within the Equation Component

From: David BRADLEY <d.bradley@tess-inc.com>

Date: Mon, 24 Oct 2011 12:06:18 -0500

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Javier,
There are a number of operator arguments available. Please check the TRNEdit manual for a full description (section 7.3.9 if you are using TRNSYS16, section 6.3.9 if you are using v17). What I would recommend you do is to use the GT() and LT() functions to set a multiplier that has a value of 1 or 0. This multiplier can then be used in an equation that sets both Q_aux and Q_need.
Best,
David

On 10/24/2011 10:27, Javier Galvan Villamarin wrote:

Dear All.

I am using the Equation component and I need to assign values to the outputs depending on the result of a previous equation.

Could somebody please help me with this?.

Input(1) = Q_dem

Input(2) = Q_eng

Output(1) = Q_need

Output(2) = Q_aux

Output(3) = Q_rej

Q_need = Q_dem - Q_eng

If Q_need>0 assign Q_aux= Q_need AND Q_rej=0

If Q_need<0 assign Q_rej= Q_need AND Q_aux=0
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