Prediction of Ozone Depletion in Upper Atmosphere by Nitric-Oxides in Supersonic Aircraft Engine Exhaust

超音速飞机发动机排气中的一氧化氮对高层大气臭氧消耗的预测

• 批准号: 13450396
• 负责人: HIROTOSHI Kubota
• 金额: $ 9.47万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13450396/
• 关键词: Supersonic aircraft; Ozone; nitric oxides chemical reaction; Infra-red spectrometry; Ozone concentration prediction; Environmental adaptability; Atmospheric model

Ozone depletion due to chemical reaction with ozone (O_3) and nitric-oxides (Nox) exhausted from an engine of supersonic aircraft is one of critical environmental issues for its accomplishment. This research is to predict the amount of ozone depletion and to assist for social assessment on the standpoint of ozone preservation in the upper atmosphere.The major findings by this research are as follows :1. Ground Experiment for Chemical Reaction of ozone (O_3) and nitric-oxides (Nox)(a) The measurement procedure for ozone concentration has been established with use of FT-IR method in the space chamber of Department of Aeronautics and Astronautics, The University of Tokyo.(b) Chemical reaction of ozone and nitric-oxides could be simulated in the space chamber.c It was verified that, from the numerical constants for chemical reactions.2. Numerical Simulation for Chemical Reaction of ozone (O_3) and nitric-oxides (Nox)(a) Two-dimensional atmospheric model has been established and the effect of nitric-oxides exhausted from aircraft on ozone concentration has been predicted.(b) The effect of nitric-oxides exhausted at the altitude of 20km on ozone concentration is small, but that at over 30km is not neglected which suggests the possibility of ozone depletion.

超音速飞机发动机排放的臭氧(O_3)和氮氧化物(NOx)与臭氧(O_3)和氮氧化物(NOx)发生化学反应而造成的臭氧消耗是超音速飞机实现这一目标的关键环境问题之一。本研究的主要发现如下：1.臭氧(O_3)和氮氧化物(NOx)的化学反应地面实验(A)在东京大学航空航天系的空间舱内建立了利用傅里叶变换红外光谱(FT-IR)方法测量臭氧浓度的方法。(B)臭氧和氮氧化物的化学反应可以在空间舱中模拟。臭氧(O_3)和氮氧化物(NOx)化学反应的数值模拟(A)建立了二维大气模式，预测了飞机排放的氮氧化物对臭氧浓度的影响：(B)在20公里高度排出的氮氧化物对臭氧浓度的影响不大，但在30公里以上的高度对臭氧浓度的影响不可忽略，这表明了臭氧消耗的可能性。

项目成果

S.M.Oh, K.Kyuno, S.C.Wang, G.Ehrlich: "Step-edge versus interior barriers to atom incorporation at lattice steps"Physical Review B. 67. 075413 (2003)

S.M.Oh、K.Kyuno、S.C.Wang、G.Ehrlich：“晶格台阶原子合并的阶梯边缘与内部势垒”物理评论 B. 67. 075413 (2003)

T.Komoda, Y.Endo, K.Kyuno, A.Toriumi: "Field-dependent mobility of highly oriented pentacene thin-film transistors"Japanese Journal of Applied Physics. 41. 2767 (2002)

T.Komoda、Y.Endo、K.Kyuno、A.Toriumi：“高度取向并五苯薄膜晶体管的场相关迁移率”日本应用物理学杂志。

牛山友規, 綿貫忠晴, 久保田弘敏: "スペースチャンバにおけるO_3-NOx反応実験"第34回流体力学講演会講演集. 197-200 (2002)

Tomonori Ushiyama、Tadaharu Watanuki、Hirotoshi Kubota：“空间室中的 O_3-NOx 反应实验”第 34 届流体力学会议论文集 197-200 (2002)。

Ushiyama, T., Watanuki, T., Kubota, H.: "Experimental Simulation of Ozone/NOx Chemical Reaction in Consideration of Environmental Issues for Next-generation Supersonic Transport"Proc. 4^<th> Asian-Pacific Conference on Aerospace Technology and Science. 12

Ushiyama, T., Watanuki, T., Kubota, H.：“考虑下一代超音速运输环境问题的臭氧/氮氧化物化学反应的实验模拟”Proc。

Kubota, H.: "Technological and Environmental Issues for Accomplishment of Supersonic Transport"Proc. of 16^<th> International Sessions in JSASS 40^<th> Aircraft Symposium. 5-8 (2002)

Kubota, H.：“实现超音速运输的技术和环境问题”Proc。