An environmental cost basis for regulating aviation NO<sub>x</sub> emissions
نویسندگان
چکیده
Abstract Combustion in aircraft engines results the formation of nitrogen oxides (NO x ) and carbon dioxide (CO 2 ), among other species. NO impacts air quality is an indirect contributor to radiative forcing, while CO a long-lived greenhouse gas. The International Civil Aviation Organization sets limits on emissions from commercial aircraft, where for with rated thrust greater than 89 kN allowable production per unit defined as function engine overall pressure ratio (OPR). This definition links thermodynamic cycle, implicitly fuel burn emissions, levels. These regulations have historically been evaluated implemented focus reducing adverse around airports, but efficiency tradeoff requires additional analysis quantify net environmental impacts. paper introduces social cost basis evaluating aviation quantifies implied attributable damage, climate costs associated standard. We show that higher operating at current regulatory limit are allowed more damage lower engines, resulting variable (i.e. combined) across design space. consequence regulation today, emissions. Alternative definitions which consider cycle combustor together. Achieving constant increase tapers off ratios, corresponding diminishing marginal improvements due increasing OPR region.
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ژورنال
عنوان ژورنال: Environmental research communications
سال: 2022
ISSN: ['2515-7620']
DOI: https://doi.org/10.1088/2515-7620/ac6938