چكيده به لاتين
Considering the importance of cloud particle fuel as an alternative and clean energy carrier, this thesis attempts to present a new mathematical model involving the combustion of solid particles, by considering the phase change process in the reaction zone, in a non-premixed combustion system with counterflow configuration, to investigate the effect of physical properties and combustion parameters on the profiles of temperature and mass fraction of species in the combustion zones. Finally, the proposed model is extended to non-adiabatic combustion with regard to thermal radiation. Also, by presenting a comprehensive but simple mathematical model, the oscillation instability phenomenon of particle cloud combustion has been simulated and controlling factors of flame oscillation have been studied. Then, the discrete heat source model and the model with continuous heat release have been compared and the application of each has been investigated. In addition, previous studies in the field of gas-fuel flames have been extended to the system including solid particle fuel, and the obtained results have been described. Also, in this thesis, by utililizing an analytical method, the effects of using gaseous fuel as a secondary fuel in a dual fuel combustion system have been studied. Finally, by summarizing the investigations carried out in this study, the most important results have been presented and suggestions have been made to extend the proposed model based on various factors.
