this study, combustion in a 5kW porous burner is simulated. The two dimensional Navier-Stokes, the energy and the chemical species transport equations are solved and a multistep kinetics mechanism (5 reactions and 7 species) is employed. Finite volume method is used for simulation. Thermal nonequilibrium is accounted for gas and solid temperature and radiation heat transfer is considered for so...

Self-recuperative burners are a common solution for efficient combustion systems in industrial furnaces. Due to the geometric complexity of recuperators, detailed CFD simulation is computationally expensive and not feasible models burner-integrated such as radiant tubes. Especially FSI studies tubes, temperature tube surrounding burner decisive final results. The exclusion recuperator from intr...

Microgravity experiments were conducted in the 2.2-s drop-tower facility at the NASA Glenn Research Center to study the transient response of the burner-generated spherical diffusion flame caused by its initial displacement from the steady-state position. The experiment involved issuing H2/CH4/inert mixtures of constant fuel mass flow rates from a bronze, porous, 1.27-cm-diameter, spherical bur...

The effects of illumination during anodic etching of porous Si have been studied. For a fixed current density and anodization time, it has been observed that below a critical irradiance level, increasing the radiant flux density during anodization results in higher photoluminescence and a blue shift of the photoluminescence spectra. For irradiance above the critical value, the photoluminescence...

Because the traditional porous media burner control system has problems of low accuracy and long time, a based on Advanced RISC Machines (ARM) embedded processor is designed. The hardware designed through ARM processor, FPGA data acquisition card, power supply circuit, reset circuit audible visual alarm module, software it. According to structure fuzzy controller, rules, assignment table variab...