We have never tested an exhaust hood
in the laboratory that didn't benefit from the addition of a side panel of some configuration, regardless of how well the hood performed without this attribute.
The development law of volumetric flow rate (G) of high-temperature annular buoyant jets at cross-section varying along with the height could provide some references for the exhaust air rate, size, and installation height of exhaust hood
. The volumetric flow rate at cross-section varying along with the height with different initial parameters was depicted in Figure 8.
The "facility has a total kitchen hood exhaust airflow rate greater than 5,000 cfm" statement replaced "Individual kitchen exhaust hoods
larger than 5,000 cfm." This prevented the addition of multiple hoods or hood sections individually operating beneath 5,000 cfm (2360 L/s) to avoid the energy saving methods and specifications required in 188.8.131.52.3 and 184.108.40.206.
Every home I've ever owned had an exhaust hood
that vented to the outside.
The current NFPA-96 Standard (1) and International Mechanical Code (2) require that a hood operate at full design airflows whenever full-load cooking activity occurs underneath an exhaust hood