Modelling of flame propagation in the gasoline fuelled Wankel rotary engine with hydrogen additives

International Conference on Mechanical Engineering, Automation and Control Systems 2016

机械制造;无线电电子学;计算机科学

Fedyanov, E.A.^1 ; Zakharov, E.A.^1 ; Prikhodkov, K.V.^1 ; Levin, Y.V.^1

Volgograd State Technical University, Lenin Avenue, 28, Volgograd

400005, Russia^1

关键词: Driving cycle;    Engine speed;    Feed systems;    Flame propagation;    Hydrogen addition;    Hydrogen additives;    Stoichiometric mixtures;    Theoretical research;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/177/1/012076/pdf
DOI  :  10.1088/1757-899X/177/1/012076

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Recently, hydrogen has been considered as an alternative fuel for a vehicles power unit. The Wankel engine is the most suitable to be adapted to hydrogen feeding. A hydrogen additive helps to decrease incompleteness of combustion in the volumes near the apex of the rotor. Results of theoretical researches of the hydrogen additives influence on the flame propagation in the combustion chamber of the Wankel rotary engine are presented. The theoretical research shows that the blend of 70% gasoline with 30% hydrogen could accomplish combustion near the T-apex in the stoichiometric mixture and in lean one. Maps of the flame front location versus the angle of rotor rotation and hydrogen fraction are obtained. Relations of a minimum required amount of hydrogen addition versus the engine speed are shown on the engine modes close to the average city driving cycle. The amount of hydrogen addition that could be injected by the nozzle with different flow sections is calculated in order to analyze the capacity of the feed system.