Development and Performance Evaluation of a Porous Tube Dilutor for Real-time Measurements of Fine Particles in High-humidity Environments

Real-time measurement of fine particles in stack emission gases is an important component in continuous environmental monitoring of PM_(10) and PM_(2.5). We developed a porous tube dilutor (using both hot and cold dilution) to measure fine, but not condensable, particles in highly humid gas emission...

Full description

Saved in:
Bibliographic Details
Published in:Aerosol and Air Quality Research 2019-03, Vol.19 (3), p.461-466
Main Authors: Woo, Chang Gyu, Hong, Ki-Jung, Kim, Hak-Joon, Kim, Yong-Jin, Han, Bangwoo, An, Jeongeun, Kang, Su Ji, Chun, Sung-Nam
Format: Article
Language:English
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Real-time measurement of fine particles in stack emission gases is an important component in continuous environmental monitoring of PM_(10) and PM_(2.5). We developed a porous tube dilutor (using both hot and cold dilution) to measure fine, but not condensable, particles in highly humid gas emissions and compared our device to a commercial ejector-type dilutor. Particle size distributions were measured in emissions from a diesel engine and a coal-fired boiler. The porous tube dilutor successfully measured particles in accumulation mode, including relatively large particles over 3 μm in diameter (without nuclei), whereas the ejector dilutor detected some condensable particles but could not detect large particles. The porous tube dilutor successfully removed condensed water droplets generated by a humidifier in a 30-m^3 chamber.
ISSN:1680-8584
2071-1409
DOI:10.4209/aaqr.2018.08.0319