Emission characteristics of PCDD/Fs in diesel engine with variable load rate

• Published in: Chemosphere (Oxford) Vol. 53; no. 6; pp. 601 - 607
• Main Authors: Kim, Kyung-Seop, Hong, Kil-Hwan, Ko, Young-Hwan, Yoon, Kyoon-Duk, Kim, Man-Goo
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.11.2003; Elsevier
• Subjects: Air Pollutants - analysis; Applied sciences; Atmospheric pollution; Benzofurans - analysis; Dibenzofurans, Polychlorinated; Diesel engine; Emission; Environmental Monitoring - instrumentation; Environmental Monitoring - methods; Exact sciences and technology; Homologue; Load rate; Motor Vehicles; PCDD/F; Pollution; Pollution sources. Measurement results; Polychlorinated Dibenzodioxins - analogs & derivatives; Polychlorinated Dibenzodioxins - analysis; Transports; Vehicle Emissions - analysis; Emission; PCDD/F; Diesel engine; Homologue; Load rate; Dioxin derivatives; Engine operating condition; Motor vehicle; Oxygen heterocycle; Pollutant emission; Persistent organic pollutant; Chlorine Organic compounds; Homologous series; Air pollution; Qualitative analysis; Exhaust gas; Emission measure; Organic compounds
• ISSN: 0045-6535; 1879-1298
• DOI: 10.1016/S0045-6535(03)00540-X

Emission characteristics of polychlorinated dibenzo- p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in diesel engine were studied with variable load rate of the diesel engine with the emission test cycles, US D-13 mode. The load rate is changed from 25% to 50% and 75% at constant speed of 2400 rpm. PCDD/Fs concentration and phase distribution of PCDD/Fs with the isokinetic sampling of exhaust gas is obtained in this study. The average PCDD/Fs concentrations per unit of exhaust gas with 25%, 50% and 75% load rate are 14.5, 6.9 and 6.4 pg-TEQ/N m 3, respectively. In all diesel engine runs, PCDFs are more prevalent than PCDDs. As a load rate is increased, the ratio of PCDDs is gradually decreased. The amount of high-chlorinated PCDDs emitted in diesel engine is larger than that of low-chlorinated PCDDs. The significant emission form of PCDD/Fs produced from diesel engines exhaust is a gas phase.