[EnergyPlus_Support] Re: Ventilation heat losses / gains

["JV Dirkes II" <jvd2pe@xxxxxxx>]

Thank you Lixing!

I was trying to help figure out the problem, and having no success. 
Glad to hear that's it's a known problem and that there is a workaround.

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Lixing Gu <gu@...> wrote:
>
> Ana:
> 
> Your observation is right. Results of the ventilation heat gain are not 
> right. The problem is that the report variable of ventilation
sensible heat 
> gain was not initialized. The problem was raised after Version 2.2
release 
> and was fixed for the next release (CR 7519). Results of the
ventilation 
> heat loss are correct. The workaround is to use infiltration objects
instead 
> of ventilation objects, since you don't use fan power.
> 
> Please let me know if you have any problems.
> 
> Lixing
> ----- Original Message ----- 
> From: "Ana Rui Oliveira" <anarui.oliveira@...>
> To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
> Sent: Tuesday, September 30, 2008 11:16 AM
> Subject: [EnergyPlus_Support] Ventilation heat losses / gains
> 
> 
> Hi.
> 
> Kind of urgently...
> 
> Any ideia why the ventilation heat gain in a Summer week (both sensible
> and total) would be of a much higher order of magnitude than the
> ventilations loss in a Winter week?
> 
> Ventilation is done using AirFlow»Ventilation objects with ero "Fan
> Pressure Rise" and I'm just using Purchased Air to control
> temperatures, so there shouldn't be any temperature rise due HVAC
> components?...
> 
> I uploaded a file with some prt screens of these graphic results, to
> facilitate interpretation.
> 
> Appreciate any help...
> Ana.
> 
> 
> 
> ------------------------------------
> 
> 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 area of the Support Web Site.
> 
> EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf
under the 
> Documentation link and press the "search" button.
> Yahoo! Groups Links
>



------------------------------------

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 area of the Support Web Site.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/EnergyPlus_Support/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:EnergyPlus_Support-digest@xxxxxxxxxxxxxxx 
    mailto:EnergyPlus_Support-fullfeatured@xxxxxxxxxxxxxxx

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

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