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Re: [TRNSYS-users] FW: Pond component

Title: TRNSYS Training confirmation
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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