不同废气循环方式下正丁醇.汽油发动机燃烧排放特性动力工程专业毕业论文.docx

ϡৠᑳ⇨ᕾ⦃ᮍᓣϟℷϕ䝛-≑⊍থࡼᴎ➗
⚻/ᥦᬒ⡍ᗻ
bustion / Emission Characteristics of a Spark Ignition Engine Fuelled with n-Butanol- gasoline Blends
with the Admission of Exhaust Gases through Different Routes
ᄺ⾥ϧϮ˖ࡼ࡯Ꮉ⿟
ⷨお⫳˖Ҭ䲾䴦
ᣛᇐᬭᏜ˖ԩ䙺ܼࡃᬭᥜ
໽⋹໻ᄺᴎẄᎹ⿟ᄺ䰶Ѡ䳊ϔѠᑈकѠ᳜
⣀߯ᗻໄᯢ
ᴀҎໄᯢ᠔ਜѸⱘᄺԡ䆎᭛ᰃᴀҎ೼ᇐᏜᣛᇐϟ䖯㸠ⱘⷨおᎹ԰੠পᕫⱘ
ⷨお៤ᵰˈ䰸њ᭛Ё⡍߿ࡴҹᷛ⊼੠㟈䇶П໘໪ˈ䆎᭛Ёϡࣙ৿݊ҪҎᏆ㒣থ㸼
៪᪄ݭ䖛ⱘⷨお៤ᵰˈгϡࣙ৿Ў㦋ᕫඟࠣӖ༰៪݊Ҫᬭ㚆ᴎᵘⱘᄺԡ៪䆕к㗠Փ⫼䖛ⱘᴤ᭭DŽϢ៥ϔৠᎹ԰ⱘৠᖫᇍᴀⷨお᠔خⱘӏԩ䋵⤂ഛᏆ೼䆎᭛Ё
԰њᯢ⹂ⱘ䇈ᯢᑊ㸼⼎њ䇶ᛣDŽ
ᄺԡ䆎᭛԰㗙ㅒৡ˖ ㅒᄫ᮹ᳳ˖ ᑈ ᳜ ᮹
ᄺԡ䆎᭛⠜ᴗՓ⫼ᥜᴗк
ᴀᄺԡ䆎᭛԰㗙ᅠܼњ㾷ඟࠣӖ༰ֱ᳝݇⬭ǃՓ⫼ᄺԡ䆎᭛ⱘ㾘ᅮDŽ
⡍ᥜᴗඟࠣӖ༰ৃҹᇚᄺԡ䆎᭛ⱘܼ䚼៪䚼ߚݙᆍ㓪᭄ܹ᳝݇᥂ᑧ䖯㸠Ẕ
㋶ˈᑊ䞛⫼ᕅॄǃ㓽ॄ៪ᠿᦣㄝ໡ࠊ᠟↉ֱᄬǃ∛㓪ҹկᶹ䯙੠׳䯙DŽৠᛣᄺ᷵
৥೑ᆊ᳝݇䚼䮼៪ᴎᵘ䗕Ѹ䆎᭛ⱘ໡ॄӊ੠⺕ⲬDŽ
˄ֱᆚⱘᄺԡ䆎᭛೼㾷ᆚৢ䗖⫼ᴀᥜᴗ䇈ᯢ˅
ᄺԡ䆎᭛԰㗙ㅒৡ˖ ᇐᏜㅒৡ˖
ㅒᄫ᮹ᳳ˖ ᑈ ᳜ ᮹ ㅒᄫ᮹ᳳ˖ ᑈ ᳜ ᮹
ᨬ 㽕
ᑳ⇨ݡᕾ⦃˄EGR˅㛑᳝ᬜഄ䰡Ԣ≑⊍ᴎⱘ NOx ᥦᬒˈᑊ㛑೼ϔᅮ⿟ᑺϞᬍ୘≑⊍ᴎ೼䚼ߚ䋳㥋ϟⱘ➗⊍㒣⌢ᗻDŽԚᰃ EGR ⥛໻ᇣফ䰤Ѣথࡼᴎⱘᕾ⦃বࡼ⥛DŽ಴ℸˈᢧሩ≑⊍ᴎⱘ EGR ⥛㣗ೈᰃ᳝ᛣНⱘDŽ⫳⠽ϕ䝛ेℷϕ䝛ᰃϔ
⾡ৃݡ⫳ⱘ৿⇻➗᭭DŽ߽⫼ℷϕ䝛䚼ߚ᳓ҷ≑⊍ᇍѢ㡖㑺⷇⊍䌘⑤ˈޣᇥথࡼᴎⱘᥦᬒ᳝⿃ᵕⱘ԰⫼DŽЎℸˈᴀ᭛䆒䅵њ EGR ߚሖ㋏㒳ҹᠽሩ≑⊍ᴎⱘ EGR ⥛㣗ೈˈᑊⷨおњᑇഛ᳝ᬜय़࡯Ў EGR ᮍᓣᇍ≑⊍ᴎ➗⚻੠乫㉦
⠽ᥦᬒ⡍ᗻⱘᕅડ੠ℷϕ䝛-≑⊍➗᭭থࡼᴎ➗⚻⡍ᗻˈᕫߎབϟ㒧䆎˖
೼ঠ⇨䘧䖯ぎ⇨ˈ1500r/min ᯊˈEGR ᮍᓣᇍ≑⊍ᴎⱘ➗⚻〇ᅮᗻ᳝ϡৠⱘᕅડDŽߚሖ EGR ϟথࡼᴎⱘ➗⚻〇ᅮᗻ↨ᘏㅵ EGR ᮍᓣϟⱘ EGR ⥛㣗ೈ໻ˈᑊϨᣛ⼎⛁ᬜ⥛䕗໻DŽ
೼ঠ⇨䘧䖯ぎ⇨ˈ1500rpm ੠䖛䞣ぎ⇨㋏᭄Ў - ᯊˈ➗⫼≑⊍ᯊথࡼᴎऩԡԧ⿃ݙⱘḌᗕ乫㉦੠⿃㘮ᗕ乫㉦ⱘ᭄䞣੠㸼䴶⿃䱣ⴔ䖛䞣ぎ⇨㋏᭄๲ࡴ㗠䰡ԢˈᑊϨ೼¬= ᯊ⿃㘮ᗕ乫㉦᭄䞣᥹䖥Ѣ䳊DŽ೼¬= ᯊˈ≑⊍ᴎऩԡԧ⿃ݙⱘḌᗕ乫㉦᭄䞣੠㸼䴶⿃䱣ⴔ EGR ⥛ⱘ๲ࡴ㗠䰡Ԣˈ㗠Ϩ೼Ⳍৠ EGR ⥛ϟˈߚሖ EGR ᮍᓣϟˈᥦ⇨ЁḌᗕ乫㉦᭄䞣⌧ᑺ↨ᘏㅵ EGR
ᴵӊϟⱘ催DŽ
೼ߚሖ EGR ៪ᘏㅵ EGR ϟˈⳌৠ EGR ᯊऩ⇨䘧䖯ぎ⇨ᯊথࡼᴎⱘᣛ⼎⛁ᬜ⥛↨ঠ⇨䘧䖯ぎ⇨ᯊⱘ催DŽ೼ᘏㅵ EGR ᮍᓣϟˈऩ⇨䘧䖯ぎ⇨ᯊথࡼᴎ〇ᅮ
➗⚻ⱘ EGR 㣗ೈϢঠ⇨䘧䖯⇨ᯊⱘⳌ䖥ˈ㗠ߚሖ EGR ᮍᓣϟˈऩ⇨䘧䖯ぎ⇨ᯊথࡼᴎ〇ᅮ➗⚻ⱘ EGR ⥛㣗ೈ↨ঠ⇨䘧䖯ぎ⇨ᯊⱘᆑDŽ
೼ 1500 r/minǃऩ䖯⇨䘧䖯ぎ⇨ᴵӊϟˈߚሖ EGR ៪ᘏㅵ EGR ϟˈ➗⫼ᦎ
⏋ 30%ℷϕ䝛-≑⊍⏋ড়➗᭭˄Bu30˅থࡼᴎⱘᣛ⼎⛁ᬜ⥛↨➗⫼≑⊍ᯊⱘ催DŽ
݊Ёˈᘏㅵ EGR ᮍᓣϟ➗⫼≑⊍ᯊথࡼᴎ〇ᅮ➗⚻ⱘ EGR ⥛㣗ೈ᳔じˈߚሖ
EGR ➗⫼ Bu30 ᯊথࡼᴎ〇ᅮ➗⚻᠔ᇍᑨⱘ EGR ⥛㣗ೈ᳔ᆑDŽ
೼ऩ䖯⇨䘧䖯ぎ⇨ˈߚሖ៪ᘏㅵ EGR ϟˈ➗⫼ Bu30 থࡼᴎ೼ 2000 r/min ϟⱘᣛ⼎⛁ᬜ⥛催Ѣ 1500r/min ϟⱘˈԚᰃ≑⊍ᴎ催䕀䗳ϟ㛑〇ᅮ➗⚻ⱘ EGR ⥛㣗ೈᇣˈϨ೼ߚሖ EGR ϟথࡼᴎ〇ᅮ➗⚻ⱘ EGR ⥛㣗ೈϟ䰡ⱘᐙᑺ᳈໻DŽߚሖ EGR ᮍᓣϟ≑⊍ᴎᆍᖡᑳ⇨੠ぎ⇨⿔䞞ⱘ㛑࡯↨ᘏㅵ EGR ᮍᓣϟⱘᔎDŽ
݇䬂䆡˖ᑳ⇨ݡᕾ⦃≑⊍ᴎℷϕ䝛ߚሖᖂ㉦
ABSTRACT
Exhaust gas recirculation (EGR) can effectively reduce NOx emissions from spark ignition (SI) gasoline engines and can improve the fuel economy of SI gasoline engines at part loads at a certain extent. However, the amount of EGR is limited by the coefficient of variation of indicated mea