[TRNSYS-users] Cooling coil Type 508a - wrong heat transfer output

[thornton at tess-inc.com]

> The problem is that when I run the simulation I still get heat
> transfer output from the cooling coil even when the fan and pump are
> not running, and in some periods even when the air temperature is
> lower than the fluid temperature. I have tried to fix this problem but
> with no results.

99% of the time when users say that they get heat transfer when there is 
no flow, there actually is flow and they aren't controlling the system 
like they think they are.  Did you use an online plotter and watch the 
flows and heat transfer or use the TRACE command to see that what the 
cooling coil model is actually getting as inputs?  I'd start there.  
After that, if you still think there's a problem then send it to your 
distributor, and they can have a look.

Jeff

----
Jeff Thornton
President
Thermal Energy System Specialists (TESS)
3 N. Pinckney Street - Suite 202
Madison WI 53703
(608) 274-2577
www.tess-inc.com