Commercial aircraft engine emissions characterization of in-use aircraft at Hartsfield-Jackson Atlanta International Airport.

摘要: The emissions from in-use commercial aircraft engines have been analyzed for selected gas-phase species and particulate characteristics using continuous extractive sampling 1–2 min downwind operational taxi- runways at Hartsfield-Jackson Atlanta International Airport. Using the tail numbers, 376 plumes were associated with specific engine models. In general, takeoff plumes, measured NOx emission index is lower (∼18%) than that predicted by certification data corrected ambient conditions. These results are an in-service observation of practice “reduced thrust takeoff”. CO observed in ground idle was greater (up to 100%) 7% condition. Significant differences black carbon particle number among different models/technologies. presence a mode ∼65 nm (mobility diameter) smaller ∼25 ass...