ASHRAE Research Project 1480 Report - Food Service Technology ...

Results and Discussion
Single Island Rear Filter Canopy Hood, 4-Foot Depth
The single island
rear filter canopy hood was evaluated at a 4-foot depth in twenty-two tests.
Thesee tests included evaluation of hood overhang, appliance duty, side panels, makeup air, hood
edge geometry, and dynamic room conditions. During these evaluations, the capture and
containment exhaust rate ranged from 4,400 cfm (440
cfm/ft) to in excess of
the 9,000 cfm (900
cfm/ft) available.
An image of a typical test is shown
in Figure 25. The test results are
summarized in Figure 26 and
reviewed in
detail throughout this section.
Figure 25. Single Island
Rear Filter 4-Foot Deep
Canopy Hood
3-1
RP-1480