Aerosol Sample Acquisition for Chemical and Biological Agent Detection
Abstract
The technical approaches to aerosol sample acquisition for chemical and biological agent detection have been analyzed and a sample acquisition system based on aerosol concentration and pyrolysis of the collected sample has been selected for further theoretical and experimental investigation. Theoretical analysis of the virtual impactor concentrator has been made to determine the dependence of concentrator cut-size, pressure drop and power consumption on various design parameters. Parameters such as nozzle diameter, flow rate and number of parallel nozzles in the concentrator have been taken into account. An experimental 22 liters per minute concentrator has been designed, constructed and tested. The results indicate that the system studied have the desired characteristics for sample acquisition and analysis for the intended applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1989
- Accession Number
- ADA217127
Entities
People
- B. Y. Liu
- V. A. Marple