000160978 001__ 160978
000160978 005__ 20251017144558.0
000160978 0247_ $$2doi$$a10.1016/j.combustflame.2025.114179
000160978 0248_ $$2sideral$$a144165
000160978 037__ $$aART-2025-144165
000160978 041__ $$aeng
000160978 100__ $$ada Silva, Marcelo Gomes
000160978 245__ $$aNumerical simulation of methanol combustion in dry air with a spark-plug electric discharge ignition
000160978 260__ $$c2025
000160978 5060_ $$aAccess copy available to the general public$$fUnrestricted
000160978 5203_ $$aThis study explores the complexities of plasma-assisted methanol combustion, at the molecular level. A methanol–air mixture is considered, assuming that species N2, O2, and CH3OH are initially in thermodynamic equilibrium, with initial densities of 77%, 18%, and 5% (molecular ratio 1525:381:100), respectively. The original mixture is homogeneously distributed in a 2D axial symmetric domain, concentric with the bottom spark-plug electrode and r=20mm. The plasmo-chemical kinetic model comprises 112 species interconnected by 1081 physical and chemical processes, including cross-sections resulting from electron impact, covering excitation, ionization, dissociation, recombination, attachment, and detachment. Heat and mass transfers are also considered, along with fluid dynamics. By comparing simulations and analyzing reaction rates, the research sheds light on the contribution of reactive oxygen and nitrogen species (RONS) and key reagents such as H, OH, and H2O in methanol decomposition. Additionally, it highlights the role of the duty cycle in producing atmospheric pollutants (NOx, CO, CO2, and CH2O). Through detailed analysis of reaction pathways, the study reveals crucial plasma-chemical processes and their implications for combustion and environmental pollution.
000160978 540__ $$9info:eu-repo/semantics/embargoedAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000160978 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000160978 700__ $$ada Silva Crispim, Lucas Wilman
000160978 700__ $$0(orcid)0000-0003-4679-5761$$aAlzueta, Maria Uxue$$uUniversidad de Zaragoza
000160978 700__ $$aBallester, Maikel Yusat
000160978 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000160978 773__ $$g278 (2025), 114179 [18 pp.]$$pCombust. flame$$tCombustion and Flame$$x0010-2180
000160978 8564_ $$s1132805$$uhttps://zaguan.unizar.es/record/160978/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-05-27
000160978 8564_ $$s1607636$$uhttps://zaguan.unizar.es/record/160978/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2027-05-27
000160978 909CO $$ooai:zaguan.unizar.es:160978$$particulos$$pdriver
000160978 951__ $$a2025-10-17-14:13:49
000160978 980__ $$aARTICLE