删除或更新信息,请邮件至freekaoyan#163.com(#换成@)

基于正交试验的臭氧及其前体物的非线性响应及控制方案

本站小编 Free考研考试/2021-12-31

闂佺粯鍔楅幊鎾诲吹椤斿墽鍗氶悗锝庝簻缁侇噣鏌熼崗鑲╃煂闁稿矉鎷�2婵炴垶鎸稿ú銊╋綖閹烘鍤€闁告劦浜為崺锟犳煟閵忋倖娑ч柣鈩冪懇閹囧醇閿濆洢鍋掗梺鍝勫€归悷杈╂閿燂拷
婵犮垹鐖㈤崶褍濮ら梺鍛婂笒濡盯顢旈姀銈嗩棄閻庯綆鍠栭崢鎾煛閸曢潧鐏fい鎴濇处缁嬪鍩€椤掆偓閳诲酣妾遍柍褜鍓欓崯浼存偉濞差亝鏅悘鐐电摂閸ょ姴霉濠婂啴顎楁い鈹嫭濯撮柡鍥╁枔閸欌偓闂佸綊娼цぐ鐐电箔閹惧鈻旀慨妯诲墯閸わ箓鏌熺粙鎸庢悙闁伙綁绠栧顐⑩枎閹邦厾绋勯梺鎸庣☉閺堫剟宕归妸褎濯奸柛娑橈攻缁犳帞鈧灚婢橀悧鍡浰囬崸妤佸仾闁硅揪闄勯敍鏍煏閸℃洖顣╮ee婵犮垹缍婇埀顒佺⊕閵嗗啴鏌涢幒鎴烆棞妞ゆ帞鍠愮粙濠囨偐閻㈢數效闂佸吋婢橀崯浼存偉閸濆媱搴㈡綇椤愮喎浜鹃柡鍥ㄦ皑閻熲晛鈽夐幘缈犱孩妞ゆ洝娅曞ḿ蹇涘川椤撗冩20濡ょ姷鍋犻幓顏嗘濠靛绠戦柤濮愬€楀▔銏犆瑰⿰鍐╊棥缂佸顕埀顒€婀遍崑鐔煎极閵堝鍎嶉柛鏇ㄥ墮閻﹀綊鎮楃憴鍕暡闁哄棌鍋撻梺鍝勵槹閸旀牠鎮¢敍鍕珰闁靛繆鍓濋悡娆愮箾婢跺绀€鐎殿噣鏀卞鍕吋閸曨厾妲戦梺鍝勫€介~澶屾兜閸洘鏅悘鐐靛亾缁犳帡姊婚崶锝呬壕闁荤喐娲戦懗璺衡枔閹达附鍎戦悗锝庡幘缁犳牠鏌℃径娑欏
中文关键词臭氧正交试验交互作用一氧化碳(CO)WRF-Chem模式 英文关键词ozoneorthogonal experimentinteractioncarbon monoxide(CO)WRF-Chem model
作者单位E-mail
李光耀兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000ligy18@lzu.edu.cn
陈强兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000chenqqh@lzu.edu.cn
郭文凯兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000
张瑞欣兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000
夏佳琦兰州大学大气科学学院, 半干旱气候变化教育部重点实验室, 兰州 730000
中文摘要 臭氧浓度与其前体物排放在不同地区、不同时刻具有高度非线性关系,如何精准防控臭氧污染成为了目前研究的难点.本文基于WRF-Chem空气质量模式和自建的乌海市2018年大气污染物排放清单,以2018年8月17~20日乌海市海勃湾市区的一次臭氧污染过程为例,利用有交互作用的正交试验研究臭氧及其前体物之间的非线性响应,揭示臭氧生成敏感性并确定最优控制方案.结果表明,NOx、VOCs与CO的交互作用、CO、排放的污染物和气象场的交互作用是影响海勃湾市区臭氧浓度的主要因素,在臭氧超标日的12:00~18:00臭氧生成对NOx排放量最为敏感,当NOx、VOCs和CO协同削减60%、30%和30%时,臭氧平均浓度下降最为显著,为12.6 μg·m-3(7.8%);通过对化学反应机制分析得出,VOCs和CO通过与·OH和HO2·等自由基反应进而影响整个光化学反应,是导致VOCs与CO对臭氧生成存在显著交互作用的原因.该方法为研究臭氧及其前体物的非线性响应和制定臭氧污染控制方案提供了一种新的思路. 英文摘要 There is a highly nonlinear relationship between ozone concentrations and its precursor emissions in different regions and at different times, which makes developing effective prevention and control measures difficult. An orthogonal experimental method was introduced to assess the influence of ozone precursors and their interactions on ozone formation, clarify the sensitivity of ozone generation, and propose an optimal control scheme. Based on the WRF-Chem air quality model and an emission inventory of air pollutants in Wuhai City in 2018, this study used an ozone pollution event in the Haibowan urban area (August 17 to 20 2018) to investigate the nonlinear response of ozone formation to its precursors. The orthogonal experiment shows that NOx, VOCs interactions with CO, CO, and interactions between pollutants and meteorological factors are the main factors affects ozone concentrations in the Haibowan urban area. Ozone generation was most sensitive to NOx concentrations during the hours 12:00-18:00 when standard values were exceeded. The ozone concentrations decreased significantly by 12.6 μg·m-3 (7.8%) as NOx, VOCs, and CO were reduced by 60%, 30%, and 30%, respectively. Through the analysis of chemical reaction mechanisms, it is concluded that VOCs and CO affect the photochemical reaction by reacting with·OH, HO2·and other free radicals, which causes the significant interaction between VOCs and CO in the generation of ozone. This method provides a new approach for researching the nonlinear response of ozone formation to its precursors and for proposing ozone pollution control schemes.

PDF全文下载地址:

https://www.hjkx.ac.cn/hjkx/ch/reader/create_pdf.aspx?file_no=20210211&flag=1&journal_id=hjkx&year_id=2021

闂佸綊娼ч鍡椻攦閳ь剟鐓崶璺轰喊闁逞屽墰閸犲酣宕㈤妶鍥ㄥ閻熸瑥瀚弳鍫ユ煕閹邦剙顨欑紒鍙樺嵆瀹曘劑鏁撻敓锟�闂佹寧绋戦惉濂告偟濞戙垹纭€閻庡湱濮寸粻顖炴煕濞嗘劗澧繝鈧幍顔惧崥婵炲棙甯為妶顐︽煛閸屾稓鎳嗙悮娆撴煕濡警鍎戠紓鍌氼槺閳ь剟娼уΛ娑㈡偉濠婂牊鏅柨鐕傛嫹
相关话题/兰州大学 大气 科学学院 中文 英文