Abstract
A concept of Effective Emission Indices (EEI) was introduced by several authors to assess the effects of photochemical processes in the exhaust plume on the exhaust product global inventory. We divide EEI in two factors: EEI = EI × PTI, where the known Emission Index (EI) quantifies the in-engine processes and dimensionless Plume Transformation Index (PTI) is the ratio of the NOX, NOY components, O3 or CO molecules transformed in the plume during its lifetime period to the initially emitted NOX or CO molecules into the plume. The plume lifetime period is limited by setting the prescribed small excess (10%) of emitted (NOX)P in the plume over the (NOX)a of the ambient air. EI is estimated for the most of currently used aircraft engines (IPCC, 1999). PTI was calculated by Meijer et al. (1997) and Karol et al. (1999) using the plume photochemical model for various ambient conditions.
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Karol, I.L., Kiselev, A.A., Ozolin, Y.E., Rozanov, E.V. (2000). Effective Emission Indices (EEI) of the Subsonic Air Transport Exhausts and Estimations of their World Inventories. In: van Ham, J., Baede, A.P.M., Meyer, L.A., Ybema, R. (eds) Non-CO2 Greenhouse Gases: Scientific Understanding, Control and Implementation. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-9343-4_39
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DOI: https://doi.org/10.1007/978-94-015-9343-4_39
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