| Main Title |
Development of a Digital Optical Measurement System for Analysis of Aerosol Spatial Distribution in the Indoor Environment. |
| Author |
Zhao, L. ;
Christianson, L. L. ;
Heiselberg, P. ;
Cui, M. M. ;
Tumbleson, M. E. ;
|
| CORP Author |
Illinois Univ. at Urbana-Champaign. Bioenvironmental Engineering Research Lab.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div. |
| Publisher |
1997 |
| Year Published |
1997 |
| Report Number |
EPA-R-822007; EPA/600/A-97/105; |
| Stock Number |
PB98-137532 |
| Additional Subjects |
Aerosols ;
Digital techniques ;
Spatial distribution ;
Air pollution sampling ;
Particle image velocimetry ;
Indoor air pollution ;
Rooms ;
Air pollution monitors ;
Tracer techniques ;
Particles ;
Air flow ;
Ecological concentration ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB98-137532 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
16p |
| Abstract |
A new technique to measure spatial distributions of aerosols in rooms is presented. This measurement system is based on Particle Image Velocimetry (PIV), which has non-intrusive, simultaneous, and whole field measurement features. In this quantitative flow determination, tracer particles and surrogate aerosols are introduced into the indoor air, illuminated by a light sheet,and photographed. Image shifting is used to determine the direction of particle movement. The digital images are processed automatically by image interrogation techniques. The particle size, the concentration spatial distribution, and a two-dimensional velocity vector map can be obtained by applying different data analysis techniques and calibration procedures. |
| Supplementary Notes |
Presented at Engineering Solutions to IAQ Problems, Research Triangle Park, NC., Jul 21-23, 1997. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div. |
| Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| Highlights Notes |
%AUT:K. W. /Leovic |
| NTIS Title Notes |
Rept. for Oct 93-Aug 97. |
| Category Codes |
68A; 89B |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
821200440 |
| Origin |
NTIS |
| Type |
CAT |
