Open AccessINFLUENCE OF USING ALTERNATIVE TYPES OF FUEL ON CHARACTERISTICS OF WORKING PROCESSES OF INTERNAL COMBUSTION ENGINES
Author(s) -
Sergei Pavlovich Glushkov,
Victor Kochergin,
Vasiliy Victorovich Krasnikov
Publication year - 2018
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: morskaâ tehnika i tehnologiâ
Language(s) - English
Resource type - Journals
eISSN - 2225-0352
pISSN - 2073-1574
DOI - 10.24143/2073-1574-2018-1-24-32
Subject(s) - combustion , brake specific fuel consumption , internal combustion engine , inlet manifold , fuel mass fraction , hydrogen fuel enhancement , fuel efficiency , environmental science , automotive engineering , piston (optics) , combustion chamber , mechanical engineering , materials science , process engineering , vapor lock , engineering , chemistry , physics , organic chemistry , optics , wavefront
In application of alternative types of fuel it is necessary to consider the influence of changing specific heat of fuel combustion and a process of fuel supply on parameters of working processes and external characteristics of internal combustion engines. Besides, it is necessary to consider a possible emergence of backfires in the inlet pipeline and increasing concentration of nitrogen oxides as temperature raises in the combustion chamber. It is offered to consider the influence of changing the kinetics of fuel burning under the change of fuel-air mixture composition on the process of pressure rise in the combustion chamber and, therefore, on the speed and acceleration of the piston, size of an impulse of moving parts, parameters of irregularity of rotating speed and vibration loading of the engine. In terms of using hydrogenous synthesis gas, there has been carried out the analysis of possible influence of its main components on parameters of working process of the engine. The results of theoretical calculation of an increase of combustion heat of working mixture and of pilot testing prove an increase of combustion heat and decrease of total fuel consumption at different levels of feeding synthesis gas to the engine intake manifold. The need to observe a certain proportion of hydrogen supply relative to the main hydrocarbon fuel has been noted. The research results prove that changing characteristics of the fuel used leads to a change of a type of vibration load of the power unit.