The Simulation of Biogas Combustion in a Mild Burner

• Main Authors: M. M., Noor, Wandel, Andrew P., Talal, Yusaf
• Format: Article
• Language: English
• Published: Faculty Mechanical Engineering, UMP 2014
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://umpir.ump.edu.my/id/eprint/8201/1/JMES_2014_M.M.Noor_MILD_Biogas_Combustion.pdf; http://umpir.ump.edu.my/id/eprint/8201/; http://jmes.ump.edu.my/index.php/archive/volume-6-june-2014.html

This paper discusses the design and development of moderate and intense low oxygen dilution (MILD) combustion burners, including details of the computational fluid dynamics process, step-by-step from designing the model until post-processing. A 40 mm diameter bluff-body burner was used as the flame stabilizer. The fuel nozzle was placed in the center with a diameter of 1mm and an annular air nozzle with an opening size of 1,570 mm2, and four EGR pipes were used. Non-premixed combustion with a turbulent realizable k-epsilon was used in the simulation. The fuel used is low calorific value gas (biogas). The synthetic biogas was a mixture of 60% methane and 40% carbon dioxide. The simulation was successfully achieved during the MILD regime where the ratio of maximum-to-average temperature was less than the required 23%.