본문

서브메뉴

Renewable Solar Thermochemical Nh3 Production Cycle: Materials Characterization, Cycles Investigation And Reactor Modeling
Renewable Solar Thermochemical Nh3 Production Cycle: Materials Characterization, Cycles In...
Renewable Solar Thermochemical Nh3 Production Cycle: Materials Characterization, Cycles Investigation And Reactor Modeling

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202105509
ISBN  
9798263328948
DDC  
540
저자명  
Nguyen, Nhu.
서명/저자  
Renewable Solar Thermochemical Nh3 Production Cycle: Materials Characterization, Cycles Investigation And Reactor Modeling
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
204 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Loutzenhiser, Peter G.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약Sunlight is an abundant, effective and carbon-neutral energy source. Investigation of ways to effectively utilize concentrated solar thermal energy is crucial for efforts to decarbonize industry. These tasks involve methods to produce chemical commodities from concentrating solar irradiation and examining effective ways to transfer and store thermal energy. NH3 production from air and H2 via a two-stage solar thermochemical cycle without CO2 emission was considered, encompassing: (1) air separation to produce N2 and (2) NH3 synthesis from H2 and N2. A- and B-site substituted and unsubstituted SrFeO3 samples used for air separation were screened via thermogravimetry to characterize oxygen capacity and chemical stability under elevated temperatures up to 1300 °C under various oxygen partial pressure and in the presence of common trace gases such as CO2 and H2O(v). Rate limiting mechanisms were investigated for reduction/oxidation reactions using a combination of isothermal and non-isothermal thermogravimetry. Material characterization results for perovskites oxides were used as inputs for investigation of a packed particle bed reactor design for concentrating solar thermochemical air separation applications at intermediate temperature of 600 °C. Co3Mo3N/Co6Mo6N reduction and nitridation reactions to facilitate NH3 synthesis were characterized to investigate the material reduction/nitridation extents under various nitrogen partial pressure. Produced NH3 was quantified using in-situ liquid conductivity measurements coupled with mass spectrometry. Complete regeneration of Co3Mo3N from Co6Mo6N was achieved at conditions of 700 °C under 25 to 75% H2/N2. H2-pressure swings were observed to increase NH3 production during Co3Mo3N reduction. These results represent the first successful demonstration and characterization of non-catalytic NH3 production through chemical looping with metal nitrides and will inform subsequent development of NH3 synthesis chemical looping reactors. Another crucial effort to integrate concentrated solar thermal energy to decarbonize industrial processes is to effectively transfer and store thermal energy via particulate media. Mechanical properties of particles used as heat transfer and storage media were measured at temperatures up to 800 °C for application in concentrated solar thermal energy transfer and storage. These mechanical properties were utilized to investigate pseudo-viscous fluid properties of dense granular flow at various elevated temperatures. Utilizing the pseudo-viscous fluid properties to model bulk behavior of granular flow offered significant reduction in computational load compared to the current practice of using the discrete elemental method.
일반주제명  
Crystal structure
일반주제명  
Heat transfer
일반주제명  
Reactors
일반주제명  
Transmission electron microscopy
일반주제명  
Mass spectrometry
일반주제명  
Solar energy
일반주제명  
Thermal energy
일반주제명  
Viscosity
일반주제명  
Gases
일반주제명  
Oxidation
일반주제명  
Fluid dynamics
일반주제명  
Carbon
일반주제명  
Thermogravimetric analysis
일반주제명  
Energy storage
일반주제명  
Heat conductivity
일반주제명  
Energy consumption
일반주제명  
Radiation
일반주제명  
Sun
일반주제명  
Crystallography
일반주제명  
Scanning electron microscopy
일반주제명  
Alternative energy
일반주제명  
Analytical chemistry
일반주제명  
Fluid mechanics
일반주제명  
Thermodynamics
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

 008260126s2024        us                              c    eng  d
■001000017360335
■00520260202105509
■006m          o    d                
■007cr#unu||||||||
■020    ▼a9798263328948
■035    ▼a(MiAaPQ)AAI32308074
■035    ▼a(MiAaPQ)GeorgiaTech78617
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a540
■1001  ▼aNguyen,  Nhu.
■24510▼aRenewable  Solar  Thermochemical  Nh3  Production  Cycle:  Materials  Characterization,  Cycles  Investigation  And  Reactor  Modeling
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a204  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Loutzenhiser,  Peter  G.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aSunlight  is  an  abundant,  effective  and  carbon-neutral  energy  source.  Investigation  of  ways  to  effectively  utilize  concentrated  solar  thermal  energy  is  crucial  for  efforts  to  decarbonize  industry.  These  tasks  involve  methods  to  produce  chemical  commodities  from  concentrating  solar  irradiation  and  examining  effective  ways  to  transfer  and  store  thermal  energy.  NH3  production  from  air  and  H2  via  a  two-stage  solar  thermochemical  cycle  without  CO2  emission  was  considered,  encompassing:  (1)  air  separation  to  produce  N2  and  (2)  NH3  synthesis  from  H2  and  N2.  A-  and  B-site  substituted  and  unsubstituted  SrFeO3  samples  used  for  air  separation  were  screened  via  thermogravimetry  to  characterize  oxygen  capacity  and  chemical  stability  under  elevated  temperatures  up  to  1300  °C  under  various  oxygen  partial  pressure  and  in  the  presence  of  common  trace  gases  such  as  CO2  and  H2O(v).  Rate  limiting  mechanisms  were  investigated  for  reduction/oxidation  reactions  using  a  combination  of  isothermal  and  non-isothermal  thermogravimetry.  Material  characterization  results  for  perovskites  oxides  were  used  as  inputs  for  investigation  of  a  packed  particle  bed  reactor  design  for  concentrating  solar  thermochemical  air  separation  applications  at  intermediate  temperature  of  600  °C.  Co3Mo3N/Co6Mo6N  reduction  and  nitridation  reactions  to  facilitate  NH3  synthesis  were  characterized  to  investigate  the  material  reduction/nitridation  extents  under  various  nitrogen  partial  pressure.  Produced  NH3  was  quantified  using  in-situ  liquid  conductivity  measurements  coupled  with  mass  spectrometry.  Complete  regeneration  of  Co3Mo3N  from  Co6Mo6N  was  achieved  at  conditions  of  700  °C  under  25  to  75%  H2/N2.  H2-pressure  swings  were  observed  to  increase  NH3  production  during  Co3Mo3N  reduction.  These  results  represent  the  first  successful  demonstration  and  characterization  of  non-catalytic  NH3  production  through  chemical  looping  with  metal  nitrides  and  will  inform  subsequent  development  of  NH3  synthesis  chemical  looping  reactors.  Another  crucial  effort  to  integrate  concentrated  solar  thermal  energy  to  decarbonize  industrial  processes  is  to  effectively  transfer  and  store  thermal  energy  via  particulate  media.  Mechanical  properties  of  particles  used  as  heat  transfer  and  storage  media  were  measured  at  temperatures  up  to  800  °C  for  application  in  concentrated  solar  thermal  energy  transfer  and  storage.  These  mechanical  properties  were  utilized  to  investigate  pseudo-viscous  fluid  properties  of  dense  granular  flow  at  various  elevated  temperatures.  Utilizing  the  pseudo-viscous  fluid  properties  to  model  bulk  behavior  of  granular  flow  offered  significant  reduction  in  computational  load  compared  to  the  current  practice  of  using  the  discrete  elemental  method.
■590    ▼aSchool  code:  0078.
■650  4▼aCrystal  structure
■650  4▼aHeat  transfer
■650  4▼aReactors
■650  4▼aTransmission  electron  microscopy
■650  4▼aMass  spectrometry
■650  4▼aSolar  energy
■650  4▼aThermal  energy
■650  4▼aViscosity
■650  4▼aGases
■650  4▼aOxidation
■650  4▼aFluid  dynamics
■650  4▼aCarbon
■650  4▼aThermogravimetric  analysis
■650  4▼aEnergy  storage
■650  4▼aHeat  conductivity
■650  4▼aEnergy  consumption
■650  4▼aRadiation
■650  4▼aSun
■650  4▼aCrystallography
■650  4▼aScanning  electron  microscopy
■650  4▼aAlternative  energy
■650  4▼aAnalytical  chemistry
■650  4▼aFluid  mechanics
■650  4▼aThermodynamics
■690    ▼a0363
■690    ▼a0486
■690    ▼a0204
■690    ▼a0348
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360335▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

미리보기

내보내기

chatGPT토론

Ai 추천 관련 도서


    신착도서 더보기
    최근 3년간 통계입니다.

    소장정보

    • 예약
    • 소재불명신고
    • 나의폴더
    • 우선정리요청
    • 비도서대출신청
    • 야간 도서대출신청
    소장자료
    등록번호 청구기호 소장처 대출가능여부 대출정보
    TF19144 전자도서 대출가능 마이폴더 부재도서신고 비도서대출신청 야간 도서대출신청

    * 대출중인 자료에 한하여 예약이 가능합니다. 예약을 원하시면 예약버튼을 클릭하십시오.

    해당 도서를 다른 이용자가 함께 대출한 도서

    관련 인기도서

    로그인 후 이용 가능합니다.