Re: [TRNSYS-users] help

[David Bradley <bradley@tess-inc.com>]

Ming,
 I imagine that you have already checked this but does the simulation result file give you any indication as to why it stopped running (too many warnings, an error, etc.) or does the simulation just get hung up at some point?
Kind regards,
 David


Liu, Ming - liumy008 wrote:

Dear Trnsys users,

 

I am working on the simulation of a refrigeration system on the refrigerated transport. I used Type88 to model the refrigerated space and Type508a to model the cooling coil inside the refrigerated space. The temperature of the refrigerated space is at -18^oC. The model can work. However, sometimes when I change some parameters, such as the flow rate of the pump and the fan, the simulation will stop after running for a while. I guess it is maybe because of the low temperature. In real application, there will be water condensed on the wall of the refrigerated space and also the cooling coil. And at the low temperature (-18^oC), there will be ice formed.

 

Do you have any other idea on that? Do you think Type88 and Type508 can work at low temperature such as around -20~-30^oC? Can these two components solve the condensing problem? Is there any other people working on the low temperature simulation? Have you ever come across any problems?

 

Thanks in advance!

 

Cheers,

Ming

  

_______________________________________________
TRNSYS-users mailing list
TRNSYS-users@engr.wisc.edu
https://www.cae.wisc.edu/mailman/listinfo/trnsys-users
  

-- 
***********************************************************************
Thermal Energy System Specialists (TESS), LLC 
David BRADLEY                      2916 Marketplace Drive - Suite 104 
Partner                            Madison, WI 53719 
                                   USA
P: +1.608.274.2577 
F: +1.608.278.1475
E-mail: bradley@tess-inc.com 
Web Pages:  http://www.tess-inc.com    and      http://www.trnsys.com

***********************************************************************