ILO Home
Go to the home page
Site map | Contact us Franšais | Espa˝ol

CISDOC database

Document ID (ISN)31194
CIS number 79-714
ISSN - Serial title 0002-8894 - American Industrial Hygiene Association Journal
Year 1979
Convention or series no.
Author(s) Socha G.E.
Title Local exhaust ventilation principles.
Bibliographic information Jan. 1979, Vol.40, No.1, p.1-10. Illus. 19 ref.
Abstract This overview article gives the reasons for inefficient action of local exhaust systems (inadequate air volume, excessive capture distance, poor positioning of hoods). It discusses the virtues of containment, in which contaminant collection is at the very source of contamination and considers other factors important for design: conveying velocity for particulates, use of gravitational force, pressure drop in ducts, airflow distribution at hoods, fan or blower placement, installation of a static pressure gauge and tests of the system.
Descriptors (primary) local exhaust; ventilation design; exhaust ventilation
Descriptors (secondary) exhaust hoods; enclosure; aerodynamics
Document type -
Subject(s) Heating, ventilation and climate
Broad subject area(s)
Browse category(ies) Ventilation