[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[EnergyPlus_Support] Re: Heat transfer outputs interpretation



Sorry, do not consider this. I haven't found my previous post and thought it wasn't sent!

--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "laurentvidal50" <laurent.vidal@...> wrote:
>
> Hello,
> 
> Looking to surface outputs, I don't understand how heat flux is calculated. I probably miss something.
> 
> My surface is one layer material, material set as resistance only R=1.
> Its area is 82.7 m2.
> 
> After a winter design day calculation, my outputs give me:
> Heat flux : 1364 W
> Coeff convection int (Uc int) : 3.076 W/(m2.K)
> Coeff convection out (Uc out) : 8.23 W/(m2.K)
> Outside temperature (t out) : -6.2°C
> Internal temperature (t int): 22°C
> 
> When applying this formula : Heat = 1/(R + 1/Uc int + 1/Uc out)*(t int - t out)* area, I found 1612 W.
> 
> Where am I wrong?
> 
> Thanks.
>




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

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/