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Simulation of Combustion Flow of Methane Gas in a Premixed Low-Swirl Burner using a Partially Premixed Combustion Model

引用

Journal of Thermal Science 2022年第5期31卷 1663-1681页

作者： XIAO Caiyuan omidi milad SURENDAR A. ALIZADEH As'ad BOKOV Dmitry O. BINYAMIN TOGHRAIE Davood Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing Shaoyang422000China College of Mechanical and Energy Engineering Shaoyang UniversityShaoyang422000China Department of Mechanical Engineering Khomeinishahr BranchIslamic Azad UniversityKhomeinishahr119/84175Iran Department of Pharmacology Saveetha dental College and hospitalSaveetha institute of medical and technical sciencesChennai602105India Faculty of Engineering Soran UniversitySoran651Iraq Department of Mechanical Engineering College of EngineeringUniversity of ZakhoZakho1653654Iraq Institute of Pharmacy Sechenov First Moscow State Medical UniversityMoscow119991Russian Federation Department of Mechanical Engineering Faculty of Science and TechnologyUniversitas Muhammadiyah Kalimantan TimurSamarinda75124Indonesia

Because the rotational current stabilizes the flame by creating a recirculation zone,it may increase the risk of *** this reason,low-spin combustion is used to stabilize the flame while preventing ***,in this study,the combustion flow of methane gas in a low-swirl burner is simulated using a partially premixed combustion ***,the fuel flow rate is considered *** research parameters include swirl angle(θ=35°–47°),equivalence ratio(φ=0.6–0.9)and inlet axial flow radius(R=0.6–0.7)and effect of these parameters on temperature distribution,flame length,flame rise length,velocity field,and streamlines of the number of pollutant species are *** contours of streamline,temperature distribution,and velocity distribution are also presented for analysis of flow *** results show that with increasing the fuel-air ratio,the strength of the axial flow decreases,and the position of the maximum flame temperature shifts toward the inlet of the *** results also reveal that by increasing the swirl angle of the flow,the position of the minimum velocity value(opposite to the direction of the axis)tends towards the *** results also indicate that the maximum temperature of the combustion chamber increases with increasing the swirl angle,and inθ=35°,the maximum temperature is 1711℃and inθ=41°,this value is 1812℃.Finally,by increasing the swirl angle toθ=47°,the maximum flame temperature position is found at a considerable distance from the inlet and is 1842℃.

关键词： swirl burner numerical simulation axial velocity premixed combustion V-shaped flame

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