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Simulation and Analysis of Electrochemical Systems
Simulation and Analysis of Electrochemical Systems
Simulation and Analysis of Electrochemical Systems

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202103547
ISBN  
9798280715677
DDC  
519
저자명  
Emanuel, Michael Steven.
서명/저자  
Simulation and Analysis of Electrochemical Systems
발행사항  
[Sl] : Harvard University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
271 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
주기사항  
Includes supplementary digital materials.
주기사항  
Advisor: Rycroft, Chris H.
학위논문주기  
Thesis (Ph.D.)--Harvard University, 2025.
초록/해제  
요약Porous electrodes are essential components in redox flow batteries, a promising technology for long duration, grid-scale energy storage, which will be a vital part of the clean energy transition. Carbon capture and storage (CCS) can mitigate and eventually reverse global warming. In this thesis I present four works, in which a porous electrode and a CCS system are each subject to one simulation and one analysis. First, I show a 3D digital twin for porous electrodes that uses direct numerical solution of the governing Navier-Stokes and Nernst-Plank equations for incompressible flow and electrochemical mass transport with Butler-Volmer reaction kinetics. Our performant, open source code handles systems approaching a billion cells at 1.25 μm resolution on a single workstation, and will scale well on modern scientific supercomputers. This work also includes a novel reformulation of the steady state concentration problem, and introduces a figure of merit, the mass-transport limiting utilization of an electrode Umt. Second, I simulate the steady state concentrations in an electrochemical acid-base generator that was experimentally characterized by my collaborators and is suitable for CCS. Third, I solve for the equilibrium concentrations in another experimental CCS system, in which aqueous quinones capture CO2 via both pH-swing and nucleophilicity swing mechanisms. Finally, I perform an elaborate nonlinear iterative calibration to measure the state of charge of an operating porous electrode given experimental image intensity and electrochemical data obtained by fluorescence microscopy.
일반주제명  
Applied mathematics
일반주제명  
Computational physics
일반주제명  
Chemical engineering
일반주제명  
Physical chemistry
키워드  
Butler-Volmer equation
키워드  
Digital twin
키워드  
Navier-Stokes equation
키워드  
Nernst-Planck equation
키워드  
Porous electrode
키워드  
Redox flow battery
기타저자  
Harvard University Engineering and Applied Sciences - Applied Math
기본자료저록  
Dissertations Abstracts International. 86-12B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■020    ▼a9798280715677
■035    ▼a(MiAaPQ)AAI32041388
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a519
■1001  ▼aEmanuel,  Michael  Steven.▼0(orcid)0009-0009-1900-673X
■24510▼aSimulation  and  Analysis  of  Electrochemical  Systems
■260    ▼a[Sl]▼bHarvard  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a271  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-12,  Section:  B.
■500    ▼aIncludes  supplementary  digital  materials.
■500    ▼aAdvisor:  Rycroft,  Chris  H.
■5021  ▼aThesis  (Ph.D.)--Harvard  University,  2025.
■520    ▼aPorous  electrodes  are  essential  components  in  redox  flow  batteries,  a  promising  technology  for  long  duration,  grid-scale  energy  storage,  which  will  be  a  vital  part  of  the  clean  energy  transition.  Carbon  capture  and  storage  (CCS)  can  mitigate  and  eventually  reverse  global  warming.  In  this  thesis  I  present  four  works,  in  which  a  porous  electrode  and  a  CCS  system  are  each  subject  to  one  simulation  and  one  analysis.  First,  I  show  a  3D  digital  twin  for  porous  electrodes  that  uses  direct  numerical  solution  of  the  governing  Navier-Stokes  and  Nernst-Plank  equations  for  incompressible  flow  and  electrochemical  mass  transport  with  Butler-Volmer  reaction  kinetics.  Our  performant,  open  source  code  handles  systems  approaching  a  billion  cells  at  1.25  μm  resolution  on  a  single  workstation,  and  will  scale  well  on  modern  scientific  supercomputers.  This  work  also  includes  a  novel  reformulation  of  the  steady  state  concentration  problem,  and  introduces  a  figure  of  merit,  the  mass-transport  limiting  utilization  of  an  electrode  Umt.  Second,  I  simulate  the  steady  state  concentrations  in  an  electrochemical  acid-base  generator  that  was  experimentally  characterized  by  my  collaborators  and  is  suitable  for  CCS.  Third,  I  solve  for  the  equilibrium  concentrations  in  another  experimental  CCS  system,  in  which  aqueous  quinones  capture  CO2  via  both  pH-swing  and  nucleophilicity  swing  mechanisms.  Finally,  I  perform  an  elaborate  nonlinear  iterative  calibration  to  measure  the  state  of  charge  of  an  operating  porous  electrode  given  experimental  image  intensity  and  electrochemical  data  obtained  by  fluorescence  microscopy.
■590    ▼aSchool  code:  0084.
■650  4▼aApplied  mathematics
■650  4▼aComputational  physics
■650  4▼aChemical  engineering
■650  4▼aPhysical  chemistry
■653    ▼aButler-Volmer  equation
■653    ▼aDigital  twin
■653    ▼aNavier-Stokes  equation
■653    ▼aNernst-Planck  equation
■653    ▼aPorous  electrode
■653    ▼aRedox  flow  battery
■690    ▼a0364
■690    ▼a0216
■690    ▼a0542
■690    ▼a0494
■71020▼aHarvard  University▼bEngineering  and  Applied  Sciences  -  Applied  Math.
■7730  ▼tDissertations  Abstracts  International▼g86-12B.
■790    ▼a0084
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357694▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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