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[EnergyPlus_Support] Re: Increasing heat transfer with induced turbulance



Cool, Thank you..

Bruce



--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@...> wrote:
>
> It all comes down to convection coefficients.  In EnergyPlus, you 
can report 
> convection coefficients (Surface Int Convection Coeff and Surface 
Ext 
> Convection Coeff) and you can control them with the 
ConvectionCoefficients 
> object or by simply chaging the Roughness field in the outside 
material layer.  
> So, even without knowing the real relationship between ribs and 
heat transfer, 
> you could get an idea of the potential impact of, say, a 10-fold 
increase in 
> convection coefficients.
> 
> Mike
> 
> 
> On 10 May 2007 at 22:30, bgavin99 wrote:
> 
> > Does anyone have any ideas on modeling changes to heat transfer to
> > walls etcetera by ading ribs to induce turbulence, i think 
increased
> > turbulence increases transfer...
> > A long shot...
> > 
> > 
> > 
> > The primary EnergyPlus web site is found at:
> > http://www.energyplus.gov
> > 
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> > 
> > 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
> > 
> > 
> > 
> > 
> > 
> 
> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@...
>




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