106729 20220426091141.0 doi 10.1016/j.ijhydene.2020.08.045 sideral 119965 ART-2020-119965 eng González-Espinosa, A. Effects of hydrogen and primary air in a commercial partially-premixed atmospheric gas burner by means of optical and supervised machine learning techniques 2020 Access copy available to the general public Unrestricted In order to ascertain the effects of the hydrogen addition and the primary air-fuel ratio on burner performance and emissions, we conduct tests on a commercial atmospheric gas burner using pure methane and a blend of hydrogen/methane. Relevant statistical image features are extracted from a UV–VIS camera equipped with narrow-band optical filters. Radical image results agrees with spectrometric data, showing the relevance of the OH* intensity radiation coming from the outer non-premixed zone. The double-cone flame structure is evident, showing a growing secondary non-premixed cone as the primary air-fuel ratio is decreased. In addition, the direct relationship found between flame radical imaging features and NOx emissions has been used to develop a predictive model by integrating classification techniques and neural networks. The research confirms UV–VIS chemiluminescence imaging techniques as powerful tools aimed at combustion monitoring, with huge prospects of being integrated within advanced emission control techniques for commercial burners. info:eu-repo/grantAgreement/EC/H2020/636834/EU/Integrated Process Control based on Distributed In-Situ Sensors into Raw Material and Energy Feedstock/DISIRE This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 636834-DISIRE info:eu-repo/grantAgreement/ES/MICINN/ENE2013-48003-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 5.816 2020 CHEMISTRY, PHYSICAL 48 / 162 = 0.296 2020 Q2 T1 ENERGY & FUELS 37 / 114 = 0.325 2020 Q2 T1 ELECTROCHEMISTRY 9 / 29 = 0.31 2020 Q2 T1 1.212 2020 Condensed Matter Physics 2020 Q1 Renewable Energy, Sustainability and the Environment 2020 Q1 Fuel Technology 2020 Q1 Energy Engineering and Power Technology 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Gil, A. Universidad de Zaragoza (orcid)0000-0002-0704-4685 Royo-Pascual, L. Universidad de Zaragoza (orcid)0000-0002-5713-1402 Nueno, A. Universidad de Zaragoza Herce, C. (orcid)0000-0002-6631-3961 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 0 X Universidad de Zaragoza Institutos Univ. de Investig. Área Administrativa 5004 590 Universidad de Zaragoza Dpto. Ingeniería Mecánica Área Máquinas y Motores Térmi. 45, 55 (2020), 31130-31150 Int. j. hydrogen energy International Journal of Hydrogen Energy 0360-3199 734682 http://zaguan.unizar.es/record/106729/files/texto_completo.pdf Postprint 1644476 http://zaguan.unizar.es/record/106729/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:106729 articulos driver 2022-04-26-08:56:42 ARTICLE