MightyGreen
Member
Im currently in the making of a new growbox with the target it being super stealthy. I want it to be as quiet as possible, meaning no noise what so ever coming from the fans or the airflow.
The box will be 27,6 inches deep, 47,25 inches wide and 67 inches high (numbers are so crued cause of the the U.S. customary units, metric ftw) so in total ~50 f³ .
Exhausting the cabinet around 3-5 times a minute would need a fan rated 150-250cfm, ima be venting the warm air coming from the led-panel seperatly.
Im thinking about using either a Centrifugal fan with forward curved blades ( 450cfm rated throttled with a toroid transformer to around 80 or 60Volts) with a muffler at the exhaust or building my own carbon filter (using alu-L-profiles, metal fly screens and alu-sheets to build a box 2,4 inches deep, 14,2 inches wide and high filled with activated carbon pellets) and using 9x 120mm fans at 5volt each (which should put them at around 33 cfm per fan without pressure resistant loss from the carbon filter).
Whats your take on my ideas guys ? Should i buy the Centrifugal fan or use my existing noname centrifugal fan with 800cfm or build the ventilation with those pc-fans ? Or might somebody of u guys have done sthg. like it before or can recommend another setup which is super silent ? And what would be the best way to throttle a fan, using a transformator or a frequency inverter with a sinusoidal filter ?
Mi english No good Please excUse typos.
The box will be 27,6 inches deep, 47,25 inches wide and 67 inches high (numbers are so crued cause of the the U.S. customary units, metric ftw) so in total ~50 f³ .
Exhausting the cabinet around 3-5 times a minute would need a fan rated 150-250cfm, ima be venting the warm air coming from the led-panel seperatly.
Im thinking about using either a Centrifugal fan with forward curved blades ( 450cfm rated throttled with a toroid transformer to around 80 or 60Volts) with a muffler at the exhaust or building my own carbon filter (using alu-L-profiles, metal fly screens and alu-sheets to build a box 2,4 inches deep, 14,2 inches wide and high filled with activated carbon pellets) and using 9x 120mm fans at 5volt each (which should put them at around 33 cfm per fan without pressure resistant loss from the carbon filter).
Whats your take on my ideas guys ? Should i buy the Centrifugal fan or use my existing noname centrifugal fan with 800cfm or build the ventilation with those pc-fans ? Or might somebody of u guys have done sthg. like it before or can recommend another setup which is super silent ? And what would be the best way to throttle a fan, using a transformator or a frequency inverter with a sinusoidal filter ?
Mi english No good Please excUse typos.
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