Author_Institution :
Dept. of Thermal Sci. & Energy Eng., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
The goal of this paper is to investigate the effect factors on HiTAC of biogas, which is composed by CO, H2, CO2, etc. These factors mainly include O2 concentration in oxidant, several dilutes (N2, H2O and CO2), and strain rate a. The numerical analysis was carried out by means of Oppdif application of ChemKin package by using the GRI 3.0 oxidation mechanisms. Oppdif computes the diffusion flame between the two opposed nozzles with a system pressure 1atm. Firstly, influences of O2 concentration in oxidant, such as 3%, 5%, 10%, 15%, 21%, on maximum temperature is carried out. Secondly, an analysis was made to know effects of strain rate on combustion. Finally, effects of dilute on HiTAC of biogas are provided, including N2, H2O, and CO2 as dilute respectively.
Keywords :
biofuel; carbon compounds; combustion; flames; nitrogen; numerical analysis; oxidation; water; CO2; ChemKin package; GRI 3.0 oxidation mechanisms; H2O; HiTAC; N2; O2; O2 concentration; Oppdif application; biogas; diffusion flame; high temperature air combustion; nozzles; numerical analysis; oxidant; pressure 1 atm; strain rate; Combustion; Fires; Fuels; Heating; Strain; Temperature; Water; HiTAC(High Temperature Air Combustion); agricultural waste; biomass; strain rate; thermal-NOx;
