Not in particular that one, but there are many designs but it is all the same concept, yes.
First I need to get my hands on the OrdBot and then I will select a fanduct that would fit, need to find out what room would be left, and then design an angular branket to get from the holes, on the right side of the extruder plate, to the nozzle.
You want to have a breeze blowing over the printed object and some breeze to cool the extruder barrel to prevent backflow..
Although I never had any problems with backflow, I notice differences with/or without cooling on a PLA print so therefor I would like to have the fan underneath the x carriage!
I favor this one
http://www.thingiverse.com/thing:17035 as is has a flap to control the airflow .. directing it more to the barrel or more to the print itself.