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

Evaluation of Side Panels
The effect of installing side panels on hood capture and containment performance was evaluated
using the heavy-duty (three broiler) and combination-duty (fryer, broiler, oven) appliance lines.
Various makeup air strategies were also used to quantify the effect of makeup air with the hood
partition installed, including displacement, 4-way ceiling diffuser, and perforated perimeter
supply systems.
While every effort was made to evaluate each supply air strategy in a fair manner, a feature of
the laboratory layout may have caused understated performance for side panel installation. Since
displacement air was supplied in line with the front and rear of the hood and air was not supplied
from either the left or right of the hood, the displacement ventilation system saw the edge of the
side panels rather than the surface. Due to this layout, the results may understate the performance
improvement found in the field for side panels with air supplied from other directions.
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RP-1480