Re: [EnergyPlus_Support] design load output questions

["Michael J. Witte" <mjwitte@xxxxxxxx>]

I am guessing that you have a zone which is served by both an air system and a 
radiant hydronic system.

1.  The sizing reported in the zsz file is before application of the sizing 
factor, the eio sizing includes the sizing factor.  If this is no 1.0 (in 
either SIZING PARAMETERS or ZONE SIZING), then the values will not be the same.

2.  No.  None of the values shown below include latent cooling, they are all 
sensible loads.  Values a and b are simulation results, values c and d are 
sizing results.  With radiant systems, unlike air systems, not all of the 
cooling input to the slab will end up in the space.  Values c and d are zone 
cooling requirements which are completely independent of the type of system 
which will serve the zone.  Value a is the cooling energy input to the radiant 
system, and some will be lost out the back side of the surface.

Mike


On 20 Aug 2004, at 15:52, sm278424 wrote:

> Hi 
> 
> I wonder if someone can help me interpret some of the E+ output.  I'm 
> trying to do some design sizing.  From one run, I have:
> 
> 
> a)  file.CSV - Z1 RADIANT PANEL:Hydronic Low Temp Radiant Cooling Rate
> [W](Hourly) = 4161.89 W  (autosized)
> 
> b)  file.CSV - ZN1:E PERIM SPC:Zone/Sys Sensible Cooling Rate[W]
> (Hourly) = 8105.6  (fixed 6 ACH)
> 
> c)  file.EIO - DesLoad {W}  Cooling = 10277.00 W
> 
> d)  file.ZSZ - ZN1:E PERIM SPC:VANC_INTL CLG .4% DB=>MWB:Des Cool 
> Load [W] = 11587.44 W
> 
> 
> my two questions are:
> 
> 1. should c and d be the same? or, why not?
> 
> 2. should (a + b + latent) = c or d?
> 
> Thanks
> 
> Shaun Martin
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 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.
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 



========================================================
Michael J. Witte, GARD Analytics, Inc.
EnergyPlus Testing and Support      
EnergyPlus-Support@xxxxxxxx




------------------------ Yahoo! Groups Sponsor --------------------~--> 
$9.95 domain names from Yahoo!. Register anything.
http://us.click.yahoo.com/J8kdrA/y20IAA/yQLSAA/dkFolB/TM
--------------------------------------------------------------------~-> 

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.
 
Yahoo! Groups Links

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

<*> 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/