Re: [EnergyPlus_Support] Re: Temperature error in eplus results

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

The system appears to be running properly.  I ran the simulation for one week 
in January and one week in July and the zone temperatures are always within the 
range of heating setpoint to cooling setpoint.  The "Dual Setpoint with 
Deaband" control option means that heating is provided up to the heating 
setpoint, cooling is provided down to the cooling setpoint, or the zone 
temperature is floating in the deadband between the two setpoints.  The 
schedules in this input file specify heating setpoints of 21C (occupied) or 17C 
(unoccupied) and cooling setpoints of 24C (occupied) or 28C (unoccupied).  This 
type of control will automatically switch between heating and cooling as 
needed.  (Hint:  To report the values of a schedule use "Report Variable, *, 
Schedule Value, hourly;")

Mike


On 29 Nov 2004, at 17:33, cmsoliveira2004 wrote:

> 
> 
> Hi,
> 
> after running the simulation with the changes advised by Linda Lawrie,
> i still get big differences between the zone temepratures reposrted by
> EnergyPlus and the setpoints i've defined in the IDF.
> 
> I've uploaded the file in question (Projecto 16.zip)
> 
> Thnx
> 
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "cmsoliveira2004"
> <cmsoliveira@s...> wrote:
> > 
> > thnx,
> > 
> > actually i already was considering that, and making the changes as i
> > write.
> > 
> > Thnx for time spent
> > 
> > 
> > --- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Linda Lawrie <linda@l...>
> > wrote:
> > > One thing to note is that your constructions in your building are
> > all "R" 
> > > materials -- no thermal mass.  This can cause unstable solutions.
>  We 
> > > suggest that buildings have appropriate levels of thermal
> descriptions.
> > > 
> > > 
> > > Linda
> > > 
> > > EnergyPlus WebSite: http://www.energyplus.gov
> > > Owner: EnergyPlus_Support list
> > > Member: EnergyPlus Development Team
> > > 
> > > 
> > > 
> > > [Non-text portions of this message have been removed]
> 
> 
> 
> 
> 
> 
> 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




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