[TRNSYS-users] FW: Pond component

[David Bradley]

Kent,
 I think that the DLL you are running and the Fortran code that you 
attached are not quite the same. I had to make a few changes in the 
source code before I was able to run the project that you sent. When I 
did run the project, I got an error when the variable PRPIPEFILM got set 
to a negative number, then got raised to a non integer power during the 
Type's iteration. The offending equation is:

NUPIPEFILM=(0.6+0.387*RAPIPEFILM**(1./6.)/(1+(0.559/PRPIPEFILM)**(9./16.))**(8./27.))**2.

I hope that helps...
David


Kent Beason wrote:
>
> I am having trouble with a pond component, Type 230.  I keep getting 
> an error regarding the psychrometrics subroutine, that the subroutine 
> has been called with a wet bulb temp above the max wet bulb temp for 
> the given pressure right after the sim starts.  Any suggestions on 
> where the problem may be?
>
>  
>
> ------------------------------------------------------------------------
>
> *From:* Kent Beason
> *Sent:* Monday, February 25, 2008 5:21 PM
> *To:* David Bradley
> *Subject:* Pond component
>
>  
>
> David,
>
>  
>
> Attached are the studio file, list file, and source code file of the 
> pond component.  The "replace" command which we last discussed did 
> eliminate the 2 errors at that time, but now there is 1 error 
> regarding the Psychrometrics utility routine and the simulation 
> crashes at .13hour.
>
>  
>
> Thanks for taking a look at this, and see you tomorrow.
>
>  
>
> Kent
>

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