Large Lung Rooms

[progroe]

I'm currently building out 2 40 light (Gavita Pro 1kw) rooms that will be flipflopped and intend to use a large lung room at the end of the warehouse to condition the air.

The two rooms are stacked on each other, with the end space used for the lung being mostly open from floor to ceiling. The plan is to install a 3 phase 20ton A/C outside and have the air handler dump into the lung room, as well as any dehus (we will have co2 burners) or humidifiers needed.

For the rooms, I'd like to run 3 ducts down the top of the room sucking air out (with 18" or 20" maxfans, unless there are three-phase exhaust fans available?) and dumping into the lung room. Along with the exhaust I'd like 3 more running down the bottom, under the trays, dumping cool/dry/filtered air into the room. Goal is full exchange every 90 seconds.

Anyone else running anything similar to this? Any glaring issues with this plan?

 

[Phaeton]

A 48" evacuation fan for auto body shops moves from 50,000 to 200,000 CFM depending on the motor attached, three phase is available.
If the building is large it may be more efficient running the six ducts into a collector vented into the lung room with the 48" blades.
Maintenance becomes more troublesome over the years when there are more machines with fixed mechanical lives involved. Changing out a motor every ten years on a belt driven fan is less cumbersome then individually changing out six motor/fan assemblies every four or five years.

There are many unknowns about the garden you propose so I am going off conditions in the area I live.

 

[progroe]

Great idea. With that much power there would be no need for input fans to help keep up, and the more I can get on three-phase the better.

 

[growshopfrank]

The one big issue that i can see is the noise level all this air movement will produce depending on the ambient noise level of the neighborhood this could be very problematical.