Re: [TRNSYS-users] Simulation errors

[Knut Erik Enerstvedt <knut.erik.enerstvedt@gmail.com>]

Cory,

I can try to help you with your first question. When an equation includes a division by a non-constant, you should use for example c = a/max(b,0.000001) instead of c = a/b. This is to make sure that the divisor never reaches zero during TRNSYS iterations.

As for your second question, I unfortunately have no advice except to open the List file (Calculate->Open->List file) and see if you can identify the component(s) causing the error by Type or Unit number. Hope someone else can complement on this issue.


Best regards,
Knut Erik Enerstvedt


>I am having two issues when trying to get my simulation to run.  First, 
it says there is a divide by zero in one of my equations.  I have 
determined that >a mass flow rate that is being used in the equation is 
not being set to a value.  I checked the preceding blocks and they say 
the flow rate should be >100kg/hr.  The previous block is a mixer piece 
and within the block it says the outlet mass flow rate is 100, but when I
 check the actual path >connection value it says 0. Why would that mass 
flow rate value not be passed?

>Also, I am getting an error that says "the  user has 
specified LABELS for a component model where they are not allowed. Error
 39."  How do I track >down what is causing this error?  Thanks

>-- 
>Cory Duggin, EI
>Tennessee Tech University
>Graduate Research Assistant
>Mechanical Engineering