[TRNSYS-users] Time Inconsistency!
David Bradley
bradley at tess-inc.com
Thu Oct 30 13:08:06 PDT 2008
Davide,
When you specify your simulation time step in the Studio, I assume that
you are changing the units from hours to minutes and then entering the
corresponding value. What I would recommend is that you set the
simulation time step units to "string" and enter the variable name "DELT"
Next, in the field at the bottom of the control cards window, paste the
following two lines:
EQUATIONS 1
DELT = 10/60
(if you want to run with a different time step - 5 minutes, for example,
then make the equation
DELT = 5/60
TRNSYS is trying to find two integers that when divided, give a value
that is as close as possible to the decimal time step that was set. The
Studio has a tendency to truncate time steps that are not entered in
units of hours when it converts them back.
Kind regards,
David
Davide Cali wrote:
> Dear TRNSYS users,
> I have a problem with my simulation, since it gives me an error, while
> simulating, defined as "time inconsistency, check that time of last data
> read and time of next data read are correctly connected".
> They of course are.
> The problem is I get this trouble just in the case my time step is
> smaller then 10 minutes. with a 10 time step there are no problems.
> With a smaller time step (I simulate from May to September) the
> simulation works till half July, then stucks.
> Thanks for attention and help,
> best regards,
> Davide
>
>
--
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Thermal Energy System Specialists (TESS), LLC
David BRADLEY 22 N. Carroll Street - Suite 370
Partner Madison, WI 53703
USA
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E-mail: bradley at tess-inc.com
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