[TRNSYS-users] Type 534

[David Bradley]

Mavi,
  there are a number of things that could be a problem. The two most 
common ones are that you have to assign heat exchanger nodes to tank 
nodes (using a pull-down menu in the lower right hand corner of the 
window). Sometimes when you change from one heat exchanger type to 
another, they have different numbers of nodes and if you do not assign 
all the heat exchanger nodes, they can end up getting assigned to tank 
node 0 (which doesn't exist). Check the heat exchanger node assignments 
first.

  another problem comes if you have defined a large heat exchanger. The 
volume taken up by the heat exchanger is removed from the tank nodes. If 
you have a big heat exchanger and a small tank, you can end up with the 
heat exchanger taking up more volume than is available in the tank.

  If neither of these two solve your problem, please send me the project 
file and tank data file and I will have a look in the code,
Kind regards,
  David


On 6/24/2010 02:33, Mavi Cambronero Vázquez wrote:
> Hi!!
> I´m using type 534 "Vertically cylindrical storage tank with immersed 
> heat exchanger" from TESS. If I change the heat exchanger type and I 
> choose "Serpentine tube" an inconsistency error appears.... What´s the 
> problem if I don´t change anything else? What´s the parameter that I´d 
> need to modificate? Because I supose the error is produced by an 
> "illegal" parameter or input..., but I can´t find it...
> Thanks in advance!!
> Mavi
>
>
> _______________________________________________
> TRNSYS-users mailing list
> TRNSYS-users at cae.wisc.edu
> https://www-old.cae.wisc.edu/mailman/listinfo/trnsys-users
>    

-- 
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI  53703 USA

P:+1.608.274.2577
F:+1.608.278.1475
bradley at tess-inc.com

http://www.tess-inc.com
http://www.trnsys.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20100625/f1837cb2/attachment-0001.htm>