文摘
飞机新燃料消耗和诱导污染物排放评估模型。环境效益
作者(年代):S.Khardi环境影响的大气排放的飞机可以在两个独立的解决方法。空气质量影响发生在降落起飞,飞行的影响在爬和邮轮影响气候变化,臭氧andUVradiation。本文的目的是探讨机场相关排放在当地的环境。飞行路径优化设计forminimizing机场周围的飞机燃料消耗和环境的影响。给出了飞行路径optimizationmodel与拉格朗日dispersionmodel以及数值方法和算法。困难问题的用法bestmodel驾驶飞机。操作因素,包括配置、引擎功能,天气限制,直观教具和船员资格。成本函数集成目标考虑污染物排放浓度和燃料消耗。这个问题的配方设计与部分经验数据。其有效决议让比较成为可能与现有的经验模型。We have compared pollutants emitted during LTO cycles, optimized flight path and with analysis by Döpelheuer. Comparisons concern the reduction of SO2, NOx, HC, CO, PM10, O3 and CO2.Analysis of pollutants appearing fromincomplete and complete combustion processes has been discussed. Because of calculation difficulties, no assessment has been made for the soot, H2O and PM2.5. In addition, because of the lowreliability of the availablemodels quantifying pollutant emissions of theAPU, an empirical evaluation has been done. This is based on BensonÂs fuel flowmethod applied to aircraft operations on the ground.Anewmodel, giving fuel consumption and predicting in-flight aircraft engine emissions, has been developed and coupled with flight and dispersion of pollutants models. Our model fits with the fuel consumption model performed by Boeing. We have confirmed that fuel consumption can be reduced by 3% for takeoffs and 27% for landing. This finding contributes to analyzing the coming intelligent fuel gauge computing the in-flight aircraft fuel flow. Further research is needed for incoming alternative fuels. Itwill be also necessary to define the role of NOx which is emitted during the combustion process derived fromthe ambient air, not the fuel.Models are needed for analyzing the effects of fleet composition in terms of aircraft types and engine combinations on emission factors, fuel flowassessment using performance and operationalmodes. Development of new optimized APU, reducing ground pollutant emissions, is necessary.
