重载氢内燃机氢燃烧机理研究Heavy-Duty H2CombustionAles Srna(P.I.)and Rajavasanth RajasegarCombustion Research Facility2023.06NationalLaboratoriesExceptional service in the national interest公众号卡车技术前线NASAfhette DeaNnfor shsdfLherfHefhn eronssge· 卡车技术前线Barriers(based on feedback from industry partners)· Inadequate understanding of H2-ICE in-cylinder processes· Flame-wall interactionsand quenching→oilconsumption and increased wall-heat lossesAdvantages/disadvantages of advanced ignitionAir management system requirements forultra-lean operationMitigation ofengine-out NOx emissions and development of low-cost aftertreatmentMulti-fuel operation using single hardware configurationPredictive simulations of H2ICE combustion processTimelineProject provides research that supportsindustry's H2 engine developmentprojectsProject directions and continuation areevaluated annuallyProject initiated in FY2022,FY2023 first time underreview atAMRPartnersBorgWarner,Argonne NationalLaboratory, University of Duisburg-Essen,PolytechnicUniversity of Valencia,Danish Technical University Project lead:Sandia(Srna)BudgetFY2022:$400kFY2023:$450kMixing and combustion,CFDsimulation→suboptimalefficiency and higher NOxemissionsH2 pre-ignition root-causes→expensive hardware R&DOVERVIEW:HEAVY-DUTYH2 COMBUSTIONsystems(pre-chamber)→potential forpre-ignition,benefits?,combustionevolutionand power density limitations2RelevanceHydrogen Internal Combustion Engines (H2ICE)are being actively developed by most(all)OEMs for decarbonization of difficult-to-electrify sectorsH2ICE market entry as early as 2023-2027Market share projections by several U.S.OEMs indicate that for applicationsthat require high-power density,have difficult cooling/packaging requirements,or need to operate in extreme ambient environments,H2ICEs are likely to gainand ret...
