Adding a vent to a duct in ver.6.7.7

[Isaac Kwan]

Ver6.7.7

Hi,

I am looking into implementing a fan into with a flowrate into an open vent condition. In other versions, I think you can add a fan inside the duct, but I don't think there is a way to do it in ver6.7.7. The closest way I found/ was suggested to me is as follows. 

&VENT ID='door', XB=1.2,3.4,5.6,7.8,9.0,11.1, SURF_ID='INERT' /

&HVAC ID='duct', TYPE_ID='DUCT', AREA=3.0, ROUGHNESS=0.001, LENGTH=10 /

&HVAC ID='node_in', TYPE_ID='NODE', VENT_ID='door', DUCT_ID='duct' /

&HVAC ID='node_out', TYPE_ID='NODE', AMBIENT=.TRUE., DUCT_ID='duct' /

&HVAC ID='fan', TYPE_ID='LOSS', LOSS=1.0, DUCT_ID='duct' /

Can anyone suggest a better way to do it in ver6.7.7? 

To add some context, I want to simulate an inwards flow condition but still allow smoke to overcome the flow through the door. Simulation the geometry beyond the door is not desirable/ only possible to a certain extend. 

Any help is much appreciated. Thank you in advance.

[dr_jfloyd]

Please look at the examples in the HVAC chapter of the FDS User's Guide and in the FDS Verification Guide. There are multiple examples of defining fans in ducts, and all of the input files will be in the Examples\HVAC folder in the FDS installation  directory. (the default windows install location would be C:\Program Files\firemodels\FDS6\Examples\HVAC)