Main Title |
Development of a Charged Grid Sensor for Airborne Carbon Fibers. |
Author |
Salmirs, S. ;
Schrader, J. ;
Butterfield, A. ;
|
CORP Author |
Bionetics Corp., Hampton, VA.;Environmental Sciences Research Lab., Research Triangle Park, NC. |
Year Published |
1982 |
Report Number |
EPA-68-02-3272; EPA-600/3-82-086; |
Stock Number |
PB83-116848 |
Additional Subjects |
Carbon fibers ;
Measuring instruments ;
Air pollution ;
Electric power transmission ;
Sensors ;
Industrial wastes ;
Combustion products ;
Forecasting ;
Design criteria ;
Performance evaluation ;
Field tests ;
Stationary sources
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB83-116848 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
54p |
Abstract |
This development addressed the sensing and measurement of carbon fibers moving in ventilating ducts or the exhaust stacks of incinerators. The sensor system utilizes a series of 5 electrically charged grids with different grid spacings to sense the fibers, make determinations of their length, and present a count of the numbers detected. The system will sense carbon fibers shorter than 0.1 mm moving at velocities from 2 to 4 meters per second. In addition, the system will measure fiber populations up to 100 fibers/cu meter in each of 5 lengths ranging from 0.1 to 1.5 mm. The areas which require further development have been identified together with a list of design requirements and alternate materials or fabrication techniques applicable to producing a unit for evaluation in a field test. A companion development produced a mobile flow test facility for evaluating and calibrating instrumentation which measures fibrous aerosols. |