Commercial Kitchen Exhaust Duct Sizing

Ashrae tech nical committee 5 10 kitchen ventilation sponsored and provided project guidance for a recently completed research.

Commercial kitchen exhaust duct sizing.

The illustration above shows a typical commercial kitchen application utilizing a roof mount upblast exhaust fan or wall mount upblast exhaust fan in conjunction with a supply fan. Note that not both exhaust fans are required for hood exhaust. This design guide reviews the fundamentals of kitchen. A q v 1 where.

A i 144 q i v i 1b where. Are you interested in representing captiveaire and selling our products. Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators. Minimum duct size of 6 recommended duct size of 8.

Kitchen exhaust grease duct. Essentially 10 feet of open flame wok cookers will need significantly more exhaust than the standard equipment of a range griddle fryer etc. Minimum duct size of 7 recommended duct size of 8 10. Minimum duct size of 4 recommended duct size of 6.

The information presented is applicable to new construction and in many instances retrofit construction. As an example we can use the previously mentioned set up referenced in the sizing a hood section the 12 hood with the equipment listed would need an average of 4000 cfm. Please fill out the following form and we will contact you soon. A duct cross sectional area m 2 q air flow rate m 3 s v air speed m s alternatively in imperial units.

A duct cross sectional area sq in. Read on to determine how to size your exhaust and supply fans. Selecting sizing exhaust hoods is the first design guide in a series that will help you achieve optimum performance and energy efficiency in your commercial kitchen ventilation system. Sizes of ducts are then given by the continuity equation like.