[EnergyPlus_Support] Re: Problem in Sensible Cooling Rate

["sdep1017" <yijunhuang@xxxxxxxxxxx>]

Hi Mike,

1. How can we find out the construction gains then?

2. In a simple zone with windows and conditioned by purchased 
heating, is construction loads = heating cooling loads - space 
gains - window loads - infiltration & ventilation loads ?


Thanks,
yijun


--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Michael J. Witte" 
<mjwitte@...> wrote:
>
> There are report variables for window solar gain, and for 
mechanical 
> ventilation, but there are no direct report variables for heat 
gain from the 
> walls.  
> 
> Mike
> 
> On 28 Sep 2006 at 15:04, Apple Chan wrote:
> 
> > Dear Mike
> > 
> > Thanks very much for your reply.  The zone temperatures are 
identical in 
> > the two runs since only the glazing material was changed in each 
run.  In 
> > EnergyPlus, could I have an output showing the breakdown of the 
cooling 
> > rate components, e.g. cooling rate due to heat gain from 
concrete wall, 
> > that due to solar through window, that due to ventilation load, 
etc., so 
> > that I can trace the cause of this problem?
> > 
> > Thank you!
> > 
> > Apple Chan
> > 28 Sep. 2006
> > 
> > 
> > At 03:51 PM 9/27/2006 -0500, you wrote:
> > 
> > >Report variable "Zone/Sys Sensible Cooling Rate" (and similar 
variables)
> > >reports the amount of cooling delivered to the zone by the HVAC 
system. I
> > am
> > >guessing that the HVAC system is not controlling the zone 
temperature in 
> > >one of
> > >both of these cases. Is the zone temperature the same in both 
runs?
> > >
> > >Mike
> > >
> > >On 27 Sep 2006 at 13:32, Apple Chan wrote:
> > >
> > > > Dear all
> > > >
> > > > I had run EnergyPlus simulation for my simple model of an 
office
> > building
> > > > with window to wall ration of 0.5. When the glazing material 
is changed
> > > > from clear glass to absorptive glass, the window transmitted 
solar (J)
> > is
> > > > reduced by about 30% which is very reasonable. However, 
there is almost
> > no
> > > > change in the sensible cooling rate. Could anyone please 
give me some
> > > > advices on this problem?
> > > >
> > > > Many thanks!
> > > >
> > > > Apple Chan
> > > > 27 Sep. 2006
> > > >
> > > >
> > > >
> > > > The primary EnergyPlus web site is found at:
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> > >
> > >========================================================
> > >Michael J. Witte, GARD Analytics, Inc.
> > >EnergyPlus Testing and Support
> > ><mailto:EnergyPlus-Support%40gard.com>EnergyPlus-Support@...
> > >
> > >
> > 
> > 
> > [Non-text portions of this message have been removed]
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> 
> ========================================================
> Michael J. Witte, GARD Analytics, Inc.
> EnergyPlus Testing and Support      
> EnergyPlus-Support@...
>






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