Record Display for the EPA National Library Catalog


Main Title Development and demonstration of low-level drift instrumentation /
Author Shofner, Frederick M., ; Shofne, F. M. ; Thoma, C. D.
Other Authors
Author Title of a Work
Thomas, Carl O.,
Shofner, F. M.
CORP Author Environmental Systems Corporation.
Publisher United States Environmental Protection Agency,
Year Published 1971
Report Number EPA 16130 GNK 10/71; 10818,
Stock Number PB-210 759
OCLC Number 00489161
Subjects Air--Pollution--Measurement ; Cooling towers ; Lasers
Additional Subjects ( Particles ; Detectors) ; ( Cooling towers ; Air pollution) ; ( Air pollution ; Particles) ; ( Optical radar ; Air pollution) ; Backscattering ; Semiconductor lasers ; Design ; Pulse analyzers ; Signal processing ; Gas sampling ; Samplers ; Plumes ; Calibration ; Performance evaluation ; Holography ; Velocity ; PILLS detection ; Air pollution detection
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 16130-GNK-10-71 c.1 Headquarters Library/Washington,DC 05/06/2014
ELBD ARCHIVE EPA 16130-GNK-10-71 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA 16130-GNK-10-71 repository copy AWBERC Library/Cincinnati,OH 10/17/2014
NTIS  PB-210 759 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 56 pages : illustrations, figures, tables ; 28 cm.
Instrumentation for measurement of low level drift from cooling towers was developed. Emphasis was placed on the Particulate Instrumentation by Laser Light Scattering (PILLS) System which is capable of on-line measurement and, with incorporation of existing pulse height analyzer and mini-computer equipment, complete on-line data production. Complementary techniques of isokinetic sampling (IK) and sensitive paper sampling were developed and field proven. Feasibility was demonstrated for an infrared in-line holocamera system. The design principles and engineering trade-offs for the PILLS, IK, and sensitive paper techniques are described. Drift performance data are given for a small air conditioning cooling tower unit, two large mechanical draft cooling towers, and a natural draft tower. (Author)
"October 1971." Includes bibliographical references.