Re: [EnergyPlus_Support] Confusion over Fan in AirFlow Network

[Lixing Gu <gu@xxxxxxxxxxxx>]

Ooi:

It seems the input file does not specify a fan as Zone2WindACFan, so that 
the first error message occurs (GetFanIndex: Fan not found=Zone2WindACFan). 
In other words, Zone2WindACFan is not listed in fan index. You may define 
the fan in the AIRFLOWNETWORK:DISTRIBUTION:COMPONENT CONSTANT VOLUME FAN 
object. Since the fan is not listed in the fan index, the prgram can not go 
any further.

My suggestion is to disable the AirflowNetwork model first to see whether 
you can eliminate the first error or not. The model disablement is to use 
the choice of NO MULTIZONE OR DISTRIBUTION in the AirflowNetwork Control 
field in the AirflowNetwork Simulation object. If you still have problems, 
please upload the file. I will take a look.

By the way, Window AC is not supported for the time being if you use the 
choice as MULTIZONE WITH DISTRIBUTION or MULTIZONE WITH DISTRIBUTION ONLY 
DURING FAN OPERATION in the AirflowNetwork Control field in the 
AirflowNetwork Simulation object

Thanks.

Lixing Gu

----- Original Message ----- 
From: "ooikoonbeng2004" <ooi_kb3@xxxxxxxxxxx>
To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Sent: Monday, July 02, 2007 2:06 AM
Subject: [EnergyPlus_Support] Confusion over Fan in AirFlow Network


> Confusion over Fan
>
>
> Hello everyone,
>
> i am starting to use the AirFlow Network with only the
> MultiZone:Surfaces referring to the SIMPLE house example.
>
> From the .err file, a zone needs two surfaces and i have added a
> door to each zone. So, correct me if i am wrong, the air in the
> AirFlow Network goes through ceiling crack/leakage and door leakage.
>
> As i am only studying the thermal aspects of the building envelop, i
> do not use a Direct air or fan as in the Simple House example. But i
> have a Window AirConditioner in the second zone.
>
> The messages in .err file, includes:
>
> GetFanIndex: Fan not found=Zone2WindACFan
> GetAirflowNetworkINput: The fan type defined in
> AIRFLOWNETWORK:DISTRIBUTION:COMPONENT CONSTANT VOLUME FAN =
> ZONE2WINDACFAN is not allowed etc.
>
> The 'Fan' in the error message can only refer to the fan in Window
> AC. But how do i enter the index of this fan or overcome the errors
> in the .err file?
>
> kind regards,
> ooi
>
>
>
>
> 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.pdf under the 
> Documentation link and press the "search" button.
>
> Yahoo! Groups Links
>
>
>
> 



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