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Guidelines for recirculation of exhaust air.

Authors
Hughes-RT; Amendola-AA
Source
NIOSH 1980 Nov; :1-14
Link
NIOSHTIC No.
00124134
Abstract
The use of exhaust air recirculation to conserve energy was analysed. Recirculation decision logic, design and assessment, worker exposure, and system evaluation were outlined. Recirculation without premixing, air recirculation system monitoring, and recirculation air bypass were described. Costs, safe exposure concentrations, dilution, monitoring devices, systems flexibility, airflow rates and patterns, ventilation, and air cleaner efficiency calculations were discussed. The authors conclude that adherence to these guidelines is necessary, and caution that if the air contains human carcinogens, recirculation should not be attempted.
Keywords
Safety-engineering; Ventilation-systems; Exhaust-systems; Exhaust-ventilatin; Air-treatment; Air-flow; Industrial-hygiene
Publication Date
19801101
Document Type
Other
Fiscal Year
1981
NTIS Accession No.
PB83-132001
NTIS Price
A03
NIOSH Division
DPSE
Source Name
Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio
State
OH
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