期刊
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
卷 55, 期 5, 页码 583-593出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10473289.2005.10464651
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Particulate-phase exhaust properties from two different types of ground-based jet aircraft engines-high-thrust and turboshaft-were studied with real-time instruments on a portable pallet and additional time-integrated sampling devices. The real-time instruments successfully characterized rapidly changing particulate mass, light absorption, and polycyclic aromatic hydrocarbon (PAH) content. The integrated measurements included particulate-size distributions, PAH, and carbon concentrations for an entire test run (i.e., run-integrated measurements). In all cases, the particle-size distributions showed single modes peaking at 20-40nm diameter. Measurements of exhaust from high-thrust F404 engines showed relatively low-light absorption compared with exhaust from a turboshaft engine. Particulate-phase PAH measurements generally varied in phase with both net particulate mass and with light-absorbing particulate concentrations. Unexplained response behavior sometimes occurred with the real-time PAH analyzer, although on average the real-time and integrated PAH methods agreed within the same order of magnitude found in earlier investigations.
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