Barrierless ultrasonic air cleaner. Final report

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6214016

Thomas, B J; Taylor, S R; Treuhaft, M B

This report describes an experimental program (SBIR Phase I) to demonstrate the technical feasibility of using an ultrasonic standing-wave field to promote coalescence of airborne dusts in order to improve the separation efficiency of typical inertial separators such as current precleaners. Major project tasks included assembly of an ultrasonic coalescence array; measurement of the dust mass passing through an inertial separator as a function of upstream dust concentration, airflow rate, and ultrasonic power level; and calculation of the improvement in separator efficiency as a function of coalescence. The results clearly demonstrate the technical feasibility of using an ultrasonic standing wave field to alter the particle size distribution of airborne dust in order to improve the performance of existing inertial separators, such as those used for precleaner in state-of-the-art air cleaner systems. Importantly, there is no pressure drop across the standing wave field and hence the problems typically associated with barrier filter loading can be avoided.

• Research Organization: Taylor (S.R.) and Associates, Bartlesville, OK (USA)
• OSTI ID: 6214016
• Report Number(s): AD-A-204237/2/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR CLEANING SYSTEMS
AIR FLOW
AIR POLLUTION CONTROL
COALESCENCE
CONTROL
DISTRIBUTION
DOCUMENT TYPES
DUST COLLECTORS
DUSTS
EFFICIENCY
ENGINEERED SAFETY SYSTEMS
EQUIPMENT
FEASIBILITY STUDIES
FILTERS
FLUID FLOW
GAS FLOW
MASS
PARTICLE SIZE
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PROGRESS REPORT
SIZE
SOUND WAVES
ULTRASONIC WAVES