[TRNSYS-users] Type 533

[David Bradley]

Stefania,
In addition to Matt's reply, the energy balance error output is the 
amount of energy that is not accounted for by the other terms of the 
energy balance (energy due to liquid flow into the tank, energy due to 
liquid flow out of the tank, thermal losses, miscelaneous gains, flue 
losses, etc.) Sometimes when all of the terms of the energy balance have 
been summed, there is a tiny bit left over. This is referred to as the 
energy balance error. It should be nearly zero. If it is not, then you 
may need to adjust your simulation time step or tolerances. If there is 
an energy balance error, this does not stop the simulation.
Kind regards,
David


stefania.agosta at dttn.it wrote:
> Hallo,
>
> I am trying to use type 533 (TESS Vertical TS tank) and I had to manage
> with different problems:
>
> 1.
> The default Type (the one you select from the direct access) seems to
> contain 2 energy balance errors: try to click on the INFORMATION button of
> the Type, then VARIABLES, then ALL: you can see
> Parameter 30: Tank energy balance error
> Parameter 38: HX energy balance error
> (the input file is: .\Tess Models\PlugIns\Example_534.dat )
> It happens that probably  these errors generate an error while trying to
> run the simulation.
>
> 2.
> Changing some parameters of the plugin data, this message appears:
> "Problem writing the output data, please check the entered file name".
>
> 3.
> So I tryed to rename and relocate this input file in the same directory of
> the studio file, I select this new file from the EXTERNAL FILE tab, but
> then the program gives me three error messages when I try to open the
> plugin:
>  "not able to find the data file input: please reselect the file using the
> browse button"+"entered value greater than maximum"+"runtime error:
> invalid property value"
>
> Could someone give me some advice on how to manage this type 533. I found
> out that others had some problem dealing with it but I could not find any
> solution to my problems.
>
> Best regards
>
> Stefania Agosta
> Student, University of Trento
>
>
>
> _______________________________________________
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> TRNSYS-users at cae.wisc.edu
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>
>
>
>   

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Thermal Energy System Specialists (TESS), LLC 
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E-mail: bradley at tess-inc.com 
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