Porous burners for low emission combustion: An experimental investigation

Catalytic combustion of premixed methane/air in a two-zone perovskite-based alumina pileup-pellets burner with different pellet diameters

“…The correction of the thermocouple for radiation was considered because the obtained temperature can be considered as a balance temperature at which the heat transfer of radiation and convection between the thermocouple and the pileup-pellets were balanced based on the local thermal-equilibrium theory. This method had been applied in the open literatures by Bubnovich et al [5] and Keramiotis et al [30]. The detailed catalytic combustion system and experimental procedures of the present study were based on the previous study of Gao et al [12].…”

Combustion characteristics of low-concentration coal mine methane in ceramic foam burner with embedded alumina pellets

“…(5) A Model MGA5 gas analyzer (MRU Company, Germany) with infrared analysis technology obtains more accurate data, higher measuring stability, and longer lifetime than the traditional analyzer with electrochemistry analysis technology. A ceramic sampling tube was adopted to resist the maximum temperature of 1973 K, and the position of the tube inlet is 1 mm above the porous media outlet [44]. In addition, the sampled combustion products were cooled by the water and dried by the desiccant before reaching the analyzers.…”

Temperature and radiative characteristics of cylindrical porous Ni–Al burners

“…With increasing power load of the burner, the flame is displaced towards the outer surface of the burner and the radiation efficiency is decreased. The flame is stabilized outside porous burner, when the burner power exceeds 1000 kW/m 2 [12]. The flame stabilization inside the porous burner carcass causes difficulties, especially for large scale porous burners [13,14], because of possibility of flashback, when the flame can penetrate into the mixing chamber of the burner and cause explosion of the gas mixture.…”