Re: [EnergyPlus_Support] Evaluating Infiltration just from wind influence

["Joe Huang" <yjhuang@xxxxxxx>]

Ian,

A couple of comments :

1. Keep in mind that when you change the wind speed to 0, it will affect not
only infiltration but also heat conduction through the building surfaces due
to changing the outside air film coefficient and thus surface temperatures.
A long time ago when I reduced the wind speeds to study the effects of tree
shielding, the impact of the latter effect was much more significant during
the cooling season.

2. On changing the weather file, are you certain the psychrometrics are
still consistent ?  Otherwise, I don't see why EnergyPlus wouldn't work with
such a synthetic weather file.

Joe
----- Original Message -----
From: "Ian Doebber" <idoebber@xxxxxx>
To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Sent: Thursday, December 11, 2003 1:06 PM
Subject: [EnergyPlus_Support] Evaluating Infiltration just from wind
influence


> I am trying to understand the influence of wind and stack effects
seperately on my infiltration.  For just stack effects, I made all the wind
speeds to 0 in the weather file and ran the program fine.  Now when I try to
make the dry bulb temperature equal to that in my conditioned zones so only
wind effects become influential, an error occurs and the program suddenly
shuts down. I know it has to be with the changes I have made to the weather
file.  I changed the dry bulb, dew point, relative humidity, and atm station
pressure to 23.33, 12.8, 52%, and 98400 respectively for the entire year.
Do I need to change any of the other weather input. Could anyone tell me why
energy plus can not run this weather file.
>
> Thanks
> Ian
>
> [Non-text portions of this message have been removed]
>
>
>
> 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/
>
>
>


------------------------ Yahoo! Groups Sponsor ---------------------~-->
Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark
Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada.
http://www.c1tracking.com/l.asp?cid=5511
http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/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/