Hello
Marshall
I am getting the same
error message. Have you found a solution for this?
Also, there are no inputs
or outputs to/from Type 56.
When I try to update the
building variable list, I get the following message:
This INF file seems to be
created with a wrong version of PREBID.
Is this related to the problem
with the wall transfer coefficients?
Thanks, Nikolai
Nikolai Artmann
Von:
Marshall L
Sweet/sweetml/O/VCU [mailto:sweetml@vcu.edu]
Gesendet:
Dienstag, 14. Juli 2009
18:11
An:
trnsys-users@cae.wisc.edu
Betreff:
[SPAM] - [TRNSYS-users]
HELP: Error creating the wall transfer coefficients - E-Mail in Betreffzeile
gefunden
TRNSYS Users,
I am using TRNBuild to create a type 56 building model. When I save the
building I get the following error message:
Error creating the wall transfer coefficients:
Unable to find a root after indication that a root exists.
Maybe the timebase is too small.
Please check the INF file for further information.
Upon checking the INF file the error is occurring at the end of the file
reading:
UNABLE TO FIND A ROOT AFTER INDICATION THAT A ROOT EXISTED
CHECK THE WALL TYPE AFTER THE LAST CALCULATED WALL
OFTEN THE WALL CAPACITY IS TO SMALL TO CALCULATE A TRANSFER FUNCTION !
CHECK ALSO YOUR TIMEBASE !
The wall type after the last calculated wall is a ceiling consisting of two
layers (wall_board and R-13 insulation). I have used this exact same wall
type in other models and it has worked fine. The coefficients (A, B, C,
and D) of the transfer function for this specific wall type are identical in
both models. The timebase is also the same. The capacity is
different but I have increased the capacity and I am still getting the same
error.
What is going on here? Where exactly is the capacity? What is meant
by "unable to find a root after indication that a root existed?"
Thanks in advance,
Marshall