Types of Kitchen Hoods Kitchen ventilation hoods are

By admin on November 20th, 2007

Types of Kitchen Hoods

Kitchen ventilation hoods are grouped into one of two
categories. They are defined by their respective
applications:
TYPE I: Is defined for use over cooking processes that
produce smoke or grease laden vapours and meet the
construction requirements of NFPA-96
TYPE II: Is defined for use over cooking and
dishwashing processes that produce heat or water
vapour.
Additional information on Type I and Type II hoods can
be found in Chapter 30 of the 1999 ASHRAE HVAC
Applications Handbook. This section presents
information on engineered, low-heat hoods and
commodity classes of hoods as well as an overview of
the most common types of grease removal devices.
Engineered Hood Systems
This subsection presents the engineered hood
products offered by Halton. These systems are factory
built and tested and are considered to be high-
efficiency systems.
These systems have been tested using the tracer gas
technique, Schlieren visualization, and computer
modeling to measure system efficiency. Common to
these designs is the use of Capture Jet technology
to improve the capture and containment efficiency of
the hood.
Capture Jet Canopy Hoods
These wall style canopies incorporate the Capture Jet
technology to prevent spillage of grease-laden vapor
out from the hood canopy at low exhaust rates.