[EnergyPlus_Support] air to air heat exchanger

["zhaicq98" <chaoqinz@xxxxxxxxxxxxxx>]

Hi,

I have an air to air heat exchanger, which transfer sensible and 
latent heat between the outside air and building relief air. When I 
output its heat recovery energy, lots of nagative numbers happen in 
summer, while in winter, most are positive numbers.

In my opinion, there should not be any nagative number. When the 
relief air enthalpy is greater than outside air enthalpy, the heat 
exchanger should be turned off. Is it correct?




------------------------ Yahoo! Groups Sponsor ---------------------~-->
Control Hunger EZ with fast acting oral EZ Appetite Suppressant Spray
from VitaminBoost.com. 1 Month Supply - 2oz., 80 sprays: $19.97.
http://www.challengerone.com/t/l.asp?cid=2866&lp=ezappetite3.html
http://us.click.yahoo.com/aSJFwB/XWXGAA/ySSFAA/dkFolB/TM
---------------------------------------------------------------------~->

To unsubscribe from this group, send an email to:
EnergyPlus_Support-unsubscribe@xxxxxxxxxxxxxxx

The primary EnergyPlus web site is found at:
http://www.energyplus.gov

The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/

Attachments are not allowed -- please post any files to the appropriate folder in the Files are of the Support Web Site.




 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/