Kitchen ventilation
Kitchen ventilation
(OP)
Hi, I'm Bulgarian Engineer, designer and supplier of HVAC equipment. I want to ask somebody where can I find a method for calculation of kitchens. Bulgarian methods are too weak. Thank you and sorry for my English.





RE: Kitchen ventilation
Do you have access to the ASHRAE Handbooks ? Try the HVAC Applications Volume of the ASHRAE handbook. It has a whole chapter devoted to Kitchen Ventilation.
RE: Kitchen ventilation
Typically for Kitchens the ventilation rate required is 10-15 ACH (air changes per hour) if you are talking about a domestic kitchen, but if we were talking about an industrial one the ventilation rate is 20 ACH.
But please note that, if you had a hood,
(it needs 150 cfm/sqft of hood area) so you might need some make up air to satisfy the hood.
RE: Kitchen ventilation
I think for commercial kitchen the appropriate cfm per sqft is between 80 and 50 (ASHRAE - Industrial Ventilation). Arabei's figure seems too high, which will always require an extra make-up air unit for high volumes of exhaust - something which can be avoided in small hoods.
Vic
RE: Kitchen ventilation
BOCA code in US only indicates 15 cfm per person of make-up ventilating air. Some hoods also have make-up air feed into the hood to keep hoods from exhausting too much conditioned building air.
I hope some of helps. I tried to eliminate ambiguities above because my Bulgarian is also lacking.