Every aspect of a hood was looked at for ways in which to improve the fluid dynamics of the air movement within the hood to enhance the capture and containment capabilities of the interior and exterior of the hood canopy.
Adjustable ExtractAire™ Air Flow
The addition of low-volume, high-velocity airstreams was researched. Once those airstreams proved to be beneficial in improving the capture and containment characteristics of the hood as well as reducing the amount of radiant heat escaping from the cookline into the kitchen they were strategically engineered into the hood design.
Another significant breakthrough in energy efficiency came as a result of Streivor Air Systems™ engineers inventing the totally new SmartAire™ Segmented Air Stream Technology. This concept allows a larger hood to be segmented into individual smaller hood segments along the length of the hood body.
A main reason that past wall canopy hood designs consumed more energy than Streivor Air Systems™ wall canopy hood with SmartAire™ was due to the fact that the minimum hood exhaust rate was determined by the hottest cooking appliance underneath a hood. That minimum exhaust rate was then multiplied by the length of the hood, without any consideration given to the other types of cooking appliances which are installed in the same cookline underneath the hood. Quite often a common cookline will have several pieces of cooking appliances that cook at lower temperatures relative to the other pieces in the cookline, yet since prior hood designs did not have the capability of segmenting the hood, the benefit of lower exhaust flow rates over the lower temperature cooking appliances could not be achieved.
The Streivor Air Systems™ Wall Canopy Hoods with SmartAire™ are the first ever hoods that can be adjusted into segments to take advantage of lower exhaust rates for exhausting lower temperature cooking appliances which are installed in the same cookline, under one hood with higher temperature cooking appliances.
Adjustable SmartAire™ Air Flow
The SmartAire™ hood can be fitted with Streivor Air System’s patented ExtractAire™ high-slot, high-velocity adjustable cartridge filter to go with two adjustable airstreams which run continuously along the length of the hood.
Each cartridge filter and each airstream is adjustable. Segments of the hood that require lesser amounts of exhaust air can be adjusted to exhaust less air than areas of the hood which require more exhaust. As a result a hood with SmartAire™ can take full advantage of those areas of the hood which are installed over cooking appliances with lower cooking temperatures and require less amounts of exhaust air, and redirect that saved exhaust air to an area of the hood that will benefit from the higher exhaust flow rates.
The adjustability of the segmented air streams also adds additional hood efficiencies and energy savings. Streivor Air Systems’™ research showed that unique adjustments to the air streams could be very beneficial in enhancing the capture and containment characteristics of the hood for varying cooking appliances and temperature. Adjustments such as increasing the lower airstream and upper airstream supply volumes over charbroilers, increasing the lower airstream and decreasing the upper airstream supply volumes over convection ovens, and decreasing the lower air stream and upper airstream supply volume over steam ranges showed to be beneficial.