Re: [EnergyPlus_Support] how to describe the heat storage of the goods in the supermarket

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

1. I am not sure that I understand the first question.  If you are trying to 
model the thermal mass of the merchandise in the store, then use 
Surface:HeatTransfer:InternalMass.

2.  This depends on how you want to control the ventilation.  To force an HVAC 
system into night ventilation mode at a certain time, use schedules to turn on 
the fan and turn off the cooling and heating coils.  You might also use a 
combination of SYSTEM AVAILABILITY MANAGER:DIFFERENTIAL THERMOSTAT, thermostat 
setpoint schedules, and coil availability schedules.

3.  Use Surface:HeatTransfer:InternalMass to describe furniture.

Mike


On 9 May 2004, at 2:31, sunnyxiaxia wrote:

> Hi, Mike,
> I'm still working on the night ventilation in the supermarket. One 
> problem is that there are kinds of goods which is very important to 
> store the heat then to delay the tamperature wave.
> Bu I don't know how to describe it in the E+.
> 
> The second,I don't know how to arrange the schedule of the 
> ventilation. For example,after sizing the equipment What should I do 
> if I want open the night ventilation at 20:00 and close it at 
> 7:00.How to optimizing the time at which the ventilation shoulkd be 
> open or close?  
> 
> Looking forward to your aswer. Thanks a lot!
> 
> Sunnyxiaxia  
> 
> 
> 
> 
> 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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