Push-Pull Ventilation Hood
Push-Pull Ventilation Hood
(OP)
Where can I find design guidelines for a push-pull exhaust hood? I have a filter press that is located on the ground, and the bottom of the ventilation hood will be about 10' above grade. Due to access requirements and large standoff requirments, a normal overhead ventilation hood requires excessive flow. Enclosing the filter press is not an option. It is desired to use a perimeter plenum with slot blowing upward from floor level to act as an air curtain and reduce the main hood airflow requirement.
It all sounds good in theory, but I'm lacking any design guidelines for such a ventilation system. Any help is appreciated.
It all sounds good in theory, but I'm lacking any design guidelines for such a ventilation system. Any help is appreciated.





RE: Push-Pull Ventilation Hood
Other than these recommendations, standard design guidelines might be those for kitchen hoods, i.e., hood open area hangs over equipment by XX inches for an XX sized piece of equipment. I'm not at the office now and don't have access, but the standards might be ASHRAE, SMACNA, ACGIH, or NFPA, I can't remember. I'll repost if I get the time, until then I hope some of the thought process helps. -CB
RE: Push-Pull Ventilation Hood