NGB style cab design

[bboy!]

ok so i will throw away my old design and go with one that will last a while

the design below is what i want but i need u to help me making it possible


size of the complete cab:
120cm wide (47inch)
70cm high (27inch)
40cm deep (15inch)

the flower room dimensions:
80cm wide (31inch)
70cm high (27inch)
40cm deep (15inch)

the veg room dimensions:
40cm high (15inch)
40cm deep (15inch)
40cm wide (15inch)

"stuff room" dimensions:
40cm wide (15inch)
40cm deep (15inch)
30cm high (11inch)

its a NGB style cab and lightning in there will be:
2x250w bloom cfl in the flower room
1x125w veg cfl for clones&mothers

clones cut from the mother getting rooted and then vegged for 3 days in the veg room
they they will be transplanted in 3liter pots in the flower room (i can fit 32 pots in there)

so the questions i need to know are :

will a 150CFM intake and 200CFM exhaust (on the carbon filter) axial fan be enough for this cab?

if not what fans should i go with?

where should i mount the fans?

well i hope u guys an help me making this project happen

 

[messn'n'gommin']

Whether you push or pull air through it, you'll need to put the carbon filter between the outside fresh air and the flower section stinky air. Plants in veg, usually, stink less than plants in flower.

These two links should help some.

“Ventilation 101,” by redgreenry
http://www.icmag.com/ic/showthread.php?t=112862

“Understanding Air Flow,” by Hoosierdaddy
http://www.icmag.com/ic/showthread.php?t=100823

 

[bboy!]

so where should i mount it then? how bout passive intakes?

 

[temunator]

if u can mount it on the outside of the box maybe the side of the flower room with the fan pushing smelly air out that would work good i think

 

[GoozMan]

Hi bboy, here's what I use:



Its a balcony garden shed of my own design, not quite the same but kinda similar to the NGB cab (sorry I don't know how to rotate these pics). There's a 265 cfm dayton squirrel cage blower in the separate tub on top of the main shed pulling air first through the air-cooled 250w HPS which pulls air through the main chamber, which pulls air through two 4" vents (each with three 90º angles to trap light) leading from the lower chamber, which is ultimately pulling air through two more 4" passive intake vents (again with the 90º angles) leading in from outside, behind the shed at the bottom. The one dayton blower is doing more than enough to move air through all those barriers. The cab is only 2'x3'x6' = 64 cubic feet, so a 265 cfm blower would clear the shed's air ~ 4x/minute (without barriers). I figure each of the barriers reduce airflow, I don't know by how much, but that's why I chose the 265 cfm - to overcome the additional barriers and maintain proper airflow. I hope this helps, good luck with your grow.