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Chemical Kinetic Rate Measurements of Fuels with the Hydroxyl Radical in Shock Tubes
Chemical Kinetic Rate Measurements of Fuels with the Hydroxyl Radical in Shock Tubes
Chemical Kinetic Rate Measurements of Fuels with the Hydroxyl Radical in Shock Tubes

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202104743
ISBN  
9798290652481
DDC  
620
저자명  
Zaczek, Luke Thomas.
서명/저자  
Chemical Kinetic Rate Measurements of Fuels with the Hydroxyl Radical in Shock Tubes
발행사항  
[Sl] : Stanford University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
122 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
주기사항  
Advisor: Hanson, Ronald.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2025.
초록/해제  
요약Modern combustion systems aim to increase performance and reduce harmful emissions, while there is a simultaneous push toward the use of renewable and low-carbon fuels. Oxygenated fuels such as methanol and carbon-free fuels like ammonia can be employed directly, either as neat fuels or fuel additives to help achieve these goals; and advanced fuels such as Jet Propellant 10 (JP-10) offer the capability of increased performance in air-breathing propulsion systems. In order to make use of the benefits offered by these new fuel sources, their combustion must be well understood. This is typically achieved through the development of detailed chemical kinetic models that can reproduce combustion behavior under a wide range of conditions, which are often composed of hundreds, thousands, or tens of thousands of chemical reactions and their associated reaction rates. Development of accurate chemical kinetic models requires accurate knowledge of these individual reaction rates.This dissertation aims to use laser absorption measurements in shock tube experiments to provide accurate reaction rate measurements for the key oxidation pathway of fuel + OH for several important fuel molecules: methanol (CH3OH), Jet Propellant 10 (JP-10), cyclopentene (CPE), cyclopentadiene (CPD), and ammonia (NH3). Experiments were designed to follow pseudo-first order behavior, and OH profiles were measured behind incident and reflected shocks with narrowline width cw UV laser light. When necessary, fuel concentrations were measured with infrared laser absorption diagnostics. Simulations were performed using detailed chemical kinetic models, and the fuel+OH reaction rate was modified until a best-fit was found for simulated OH time histories versus measured profiles. A new experimental method was developed, allowing +OH reactions to be measured at temperatures much higher than previously achieved with tert-butyl hydroperoxide (TBHP) as an OH source. Uncertainty analyses were conducted on each set of experiments, and while the reaction of hydroxyl with JP-10 had no prior experimental data to compare to, for each of the other rate measurements the current data was found to have smaller scatter and uncertainty than previous determinations. The respective reaction rates of OH with methanol, JP-10, CPE, CPD, and ammonia are given by the following Arrhenius expressions:Uncertainty analyses were performed for each set of kinetic rate measurements. Uncertainty for k1 was -10%/+17% at 961 K and -12%/+18% at 1231 K. Uncertainty for k2was approximately ±12% across the temperature range studied. The rate k3 has associated uncertainty of -19%/+13% at 1040 K, lessening to -10%/+5% at 1274 K. Uncertainty for k4 is -7%/+10% at 1044 K and - 6%/+8% at 1236 K. The rate k5has an uncertainty of roughly ±20% throughout the temperature range 1000-2400 K.
일반주제명  
Volatile organic compounds--VOCs
일반주제명  
Kinetics
일반주제명  
Sensitivity analysis
일반주제명  
Ammonia
일반주제명  
Lasers
일반주제명  
Energy
일반주제명  
Mechanical engineering
키워드  
Shock tubes
키워드  
Modern combustion systems
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 87-03B.
전자적 위치 및 접속  
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MARC

 008260126s2025        us                              c    eng  d
■001000017358727
■00520260202104743
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798290652481
■035    ▼a(MiAaPQ)AAI32149726
■035    ▼a(MiAaPQ)Stanfordtc114yg2085
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a620
■1001  ▼aZaczek,  Luke  Thomas.
■24510▼aChemical  Kinetic  Rate  Measurements  of  Fuels  with  the  Hydroxyl  Radical  in  Shock  Tubes
■260    ▼a[Sl]▼bStanford  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a122  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-03,  Section:  B.
■500    ▼aAdvisor:  Hanson,  Ronald.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2025.
■520    ▼aModern  combustion  systems  aim  to  increase  performance  and  reduce  harmful  emissions,  while  there  is  a  simultaneous  push  toward  the  use  of  renewable  and  low-carbon  fuels.  Oxygenated  fuels  such  as  methanol  and  carbon-free  fuels  like  ammonia  can  be  employed  directly,  either  as  neat  fuels  or  fuel  additives  to  help  achieve  these  goals;  and  advanced  fuels  such  as  Jet  Propellant  10  (JP-10)  offer  the  capability  of  increased  performance  in  air-breathing  propulsion  systems.  In  order  to  make  use  of  the  benefits  offered  by  these  new  fuel  sources,  their  combustion  must  be  well  understood.  This  is  typically  achieved  through  the  development  of  detailed  chemical  kinetic  models  that  can  reproduce  combustion  behavior  under  a  wide  range  of  conditions,  which  are  often  composed  of  hundreds,  thousands,  or  tens  of  thousands  of  chemical  reactions  and  their  associated  reaction  rates.  Development  of  accurate  chemical  kinetic  models  requires  accurate  knowledge  of  these  individual  reaction  rates.This  dissertation  aims  to  use  laser  absorption  measurements  in  shock  tube  experiments  to  provide  accurate  reaction  rate  measurements  for  the  key  oxidation  pathway  of  fuel  +  OH  for  several  important  fuel  molecules:  methanol  (CH3OH),  Jet  Propellant  10  (JP-10),  cyclopentene  (CPE),  cyclopentadiene  (CPD),  and  ammonia  (NH3).  Experiments  were  designed  to  follow  pseudo-first  order  behavior,  and  OH  profiles  were  measured  behind  incident  and  reflected  shocks  with  narrowline  width  cw  UV  laser  light.  When  necessary,  fuel  concentrations  were  measured  with  infrared  laser  absorption  diagnostics.  Simulations  were  performed  using  detailed  chemical  kinetic  models,  and  the  fuel+OH  reaction  rate  was  modified  until  a  best-fit  was  found  for  simulated  OH  time  histories  versus  measured  profiles.  A  new  experimental  method  was  developed,  allowing  +OH  reactions  to  be  measured  at  temperatures  much  higher  than  previously  achieved  with  tert-butyl  hydroperoxide  (TBHP)  as  an  OH  source.  Uncertainty  analyses  were  conducted  on  each  set  of  experiments,  and  while  the  reaction  of  hydroxyl  with  JP-10  had  no  prior  experimental  data  to  compare  to,  for  each  of  the  other  rate  measurements  the  current  data  was  found  to  have  smaller  scatter  and  uncertainty  than  previous  determinations.  The  respective  reaction  rates  of  OH  with  methanol,  JP-10,  CPE,  CPD,  and  ammonia  are  given  by  the  following  Arrhenius  expressions:Uncertainty  analyses  were  performed  for  each  set  of  kinetic  rate  measurements.  Uncertainty  for  k1  was  -10%/+17%  at  961  K  and  -12%/+18%  at  1231  K.  Uncertainty  for  k2was  approximately  ±12%  across  the  temperature  range  studied.  The  rate  k3  has  associated  uncertainty  of  -19%/+13%  at  1040  K,  lessening  to  -10%/+5%  at  1274  K.  Uncertainty  for  k4  is  -7%/+10%  at  1044  K  and  -  6%/+8%  at  1236  K.  The  rate  k5has  an  uncertainty  of  roughly  ±20%  throughout  the  temperature  range  1000-2400  K.
■590    ▼aSchool  code:  0212.
■650  4▼aVolatile  organic  compounds--VOCs
■650  4▼aKinetics
■650  4▼aSensitivity  analysis
■650  4▼aAmmonia
■650  4▼aLasers
■650  4▼aEnergy
■650  4▼aMechanical  engineering
■653    ▼aShock  tubes
■653    ▼aModern  combustion  systems
■690    ▼a0791
■690    ▼a0548
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g87-03B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358727▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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