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Re: [EnergyPlus_Support] Fan:VariableVolume
The fan won't be variable in the furnace. From the Furnace.idf example
file you see that the air flow rate will be 1.3 m3/s when heating is
active if you use constant fan. If you use cycling fan then the air flow
rate will be 1.3 m3/s when the furnace is on and 0 when it is off. This
results in an average air flow rate over the simulation time step.
AirLoopHVAC:Unitary:Furnace:HeatOnly,
1.3, !- Heating Supply Air Flow Rate {m3/s}
Now if you put the fan on the main branch, and use water coils (example
file is 5ZoneAirCooled.idf) or CoilSystem (5ZoneAutoDXVAV.idf), these
also on the main branch. And then use VAV terminal units, then the fan
will vary it's speed as the terminal unit damper modulates.
On 2018-07-15 14:06, Paul paulnee@xxxxxxxxxxxx [EnergyPlus_Support]
wrote:
> Would some kind soul please enlighten me on how to control a
> Fan:VariableVolume. Preferably in conjunction with a
> AirLoopHVAC:Unitary:Furnace:HeatOnly and it's associated coil.
>
> Thanks so much,
>
> Paul
>
>
>
> ------------------------------------
> Posted by: Paul <paulnee@xxxxxxxxxxxx>
> ------------------------------------
>
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>
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>
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> ------------------------------------
>
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>
------------------------------------
Posted by: rraustad <rraustad@xxxxxxxxxxxx>
------------------------------------
EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx
The EnergyPlus web site is found at:
http://www.energyplus.net/
The group web site is:
http://groups.yahoo.com/group/EnergyPlus_Support/
Attachments are currently allowed but be mindful that not everyone has a high speed connection. Limit attachments to small files.
EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the Documentation link and press the "search" button.
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