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

被引：2

作者：

Woo, Chang Gyu ^{[1
]}

Hong, Ki-Jung ^{[1
]}

Kim, Hak-Joon ^{[1
]}

Kim, Yong-Jin ^{[1
]}

Han, Bangwoo ^{[1
]}

An, Jeongeun ^{[2
]}

Kang, Su Ji ^{[3
]}

Chun, Sung-Nam ^{[3
]}

机构：

[1] Korea Inst Machinery & Mat, Dept Environm Machinery, Daejeon 34103, South Korea

[2] Parkor Korea Indus Co Ltd, Seoul 08584, South Korea

[3] KEPCO Res Inst, Clean Power Generat Lab, Daejeon 34056, South Korea

来源：

AEROSOL AND AIR QUALITY RESEARCH | 2019年 / 19卷 / 03期

关键词：

Sampling; PM10; PM2.5; Dilution; Condensable; EMISSIONS; SYSTEM; DESIGN;

D O I：

10.4209/aaqr.2018.08.0319

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Real-time measurement of fine particles in stack emission gases is an important component in continuous environmental monitoring of PM10 and PM2.5. 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 mu m 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.

引用

页码：461 / 466

页数：6

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