Estimation of vertical and horizontal distribution of takeoff and climb NOx emission for commercial aircraft

Abstract An investigation of takeoff and climb NO x emissions is reported for a twin-engine, narrow-body, short-to-medium haul commercial aircraft, B737-800. Ten randomly selected flights are considered for two independent domestic routes. The study is based on two approaches: actual flight data records and the International Civil Aviation Organization (ICAO) emission database. First, an empirical model is established in order to identify the relationship between fuel flow and a NO x emission index. Next, the NO x emissions are analyzed through the vertical air region and the horizontal distance from the runway. Averaged takeoff and climb NO x emissions for equal vertical regions for each route are found as 27.0 kg and 24.8 kg through the developed models for two routes, A and B, respectively. The results are also compared to those given in the ICAO database which utilizes standard takeoff and climb emission indices.

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