Re: [TRNSYS-users] Equation editor ??

[Jeff Thornton <thornton@tess-inc.com>]

Equations in TRNSYS must be explicit.  So this set of three equations will work because you can solve them without iteration:

A=3

B=A+2

C=A+B

However, this set will not work as it requires iteration/manipulation:

A=B-2

B=C-A

C=2*A+2

In the first set of equations, the values on the right side of the equation can also be outputs from component models - as their value will be known upon convergence.  The program will alert you if the system of equations you entered is legal and will then block the equations to solve them more quickly.

Jeff

Jeff Thornton

TESS

On Oct 26, 2012, at 5:49 AM, Baboo Gowreesunker <Baboo.Gowreesunker@brunel.ac.uk> wrote:

Hi all..

 

Can the equation editor iterate between its inputs and outputs, until the residual is small ?

 

Thanks

Lesh

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