Sadegh Sadeghi

• Iran University of Science and Technology

In this paper, an analytical study was conducted on two possible cases of dual-fuel combustion systems operating in premixed mode in counter-flow configuration fueled simultaneously with lycopodium particles/air and propane/air. Combustion behaviors of two distinct cases were discussed whose difference is whether there is an overlap between the rea...

In this study, non-premixed multi-zone combustion of porous lycopodium particles in a counter-flow configuration at steady state was modeled using a derived analytical model. To model the porosity, a reasonable series form is considered. In the derived analytical model, both convective and radiative heat losses were included. The overall combustion...

In this study, the transient behavior of a counter-flow non-premixed combustion of dry biomass particles under thermal radiation was modeled analytically. Unsteady conservation equations for mass and energy transports are mathematically formulated in dimensional and dimensionless forms. Preheating, vaporization and reaction processes were considere...

Due to perspective of biomass usage as a viable source of energy, this paper suggests a potential theoretical approach for studying multiregion nonadiabatic premixed flames with counterflow design crossing through the mixture of air (oxidizer) and lycopodium particles (biofuel). In this research, convective and radiative heat losses are analyticall...

Due to coal's vital role as a well-known fuel in electricity production worldwide, promising prediction of the behavior of this fuel in different combustible systems can be an effective prerequisite for augmentation of efficiency of coal-fuelled power plants. In this research, planar non-premixed combustion of moisty coal particles in counter-flow...

Purpose This study aims to present a basic mathematical model for investigating the structure of counter-flow non-premixed laminar flames propagating through uniformly-distributed organic fuel particles considering preheat, drying, vaporization, reaction and oxidizer zones. Design/methodology/approach Lycopodium particles and air are taken as biof...

Due to the safe operation and stability of non-premixed combustion, it can widely be utilized in different engineering power and medical systems. The current paper suggests a mathematical asymptotic technique to describe non-premixed laminar flow flames formed in organic particles in a counter-flow configuration. In this investigation, fuel and oxi...

Due to important advantageous of non-premixed flames such as controllability and safety, a proper investigation can be highly beneficial for application of these flames in medical and power generation industries. The current paper attempts to provide a promising analytical model for non-adiabatic counter-flow diffusion flames propagating through vo...

Non-premixed flames are extensively used in different industrial combustion systems such as gas turbines and coal furnaces. Therefore, reliable theoretical modelling of these flames is indispensable. The purpose of this study is to develop a comprehensive analytical model for counter-flow non-premixed flames employing volatile biomass particles as...