[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[EnergyPlus_Support] AHU Test

Hello all,

I am having difficulty with the controls on an AHU. The AHU consists of:

Fresh Air -> Cooling Coil -> Heating Coil -> Supply Fan -> Zone

The run period takes place over the first seven days in London. The
AHU is a constant volume system

The cooling coil cools the air to 11.5C
The heating coil heats the air back up to 16C

Unfortunately, the heating coil does not engage adequately. After
numerous attempts, it seems that the heating coil does not `sense'
that the air has been cooled to 11.5C. The heating coil is only
engaged when the outside air is below 16C (it does not realise that
the air has been cooled by the cooling coil). 

I have uploaded my file to the problem submittals. It is called Test
baseboardAHU1.idf .

Additional Info:

All additional heating in the zone is supplemented by a baseboard
heater system and the zone is maintained at 23C. As outlined
previously, the system is a full fresh air constant volume system.
Regardless of the outside conditions, I require the air to be cooled
to 11.5C and heated to 16C before it hits the supply fan. It is
supplied directly to the zone after this.

Can anyone spot how I may fix this problem?

Kind regards

-Elmer Morrissey







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.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.idf and press the "search" button.
 
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/