[TRNSYS-users] A question

David Bradley bradley at tess-inc.com
Fri Feb 29 09:57:51 PST 2008


Ming,
   I think you might be able to write two equations like:

TempCheck = LT(Tzone,20)

the LT(n,m) function returns a 1 if n < m and a 0 otherwise. You can 
then integrate the result and you will get a measure of the amount of 
time that Tzone is below 20.

Cheers,
  David


At 00:45 2/27/2008, Liu, Ming - liumy008 wrote:
>Content-class: urn:content-classes:message
>Content-Type: multipart/alternative;
>         boundary="----_=_NextPart_001_01C8790C.4759C32C"
>
>Dear Trnsys users,
>
>In my model, I want to calculate how long the temperature of a zone 
>is kept under 20OC during a day. Does anyone have any idea about 
>that? Thanks in advance.
>
>Best regards,
>Ming
>_______________________________________________
>TRNSYS-users mailing list
>TRNSYS-users at 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
Phone: (608) 274-2577 USA
Fax: (608) 278-1475
E-mail: bradley at tess-inc.com
Web Pages:  http://www.tess-inc.com     and      http://www.trnsys.com

"Providing software solutions for today's energy engineering projects"
****************************************************************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/attachments/20080229/2a6cb795/attachment-0001.htm>


More information about the TRNSYS-users mailing list