Fuel and Combustion

Fuel and Combustion

Experimental Investigation of Flame Stability and Examination of Performance Map in a Structural Ceramic Porous Burner in Cooking Application

Document Type : Original Article

Authors
Saeed Mohammadbagheri 1
Mohammad Zabetian Targhi 2
Mohammad Mahdi Heyhat 2
Ali Ashouri 1
1 Tarbiat Modares University
2 Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
10.22034/jfnc.2024.452002.1387
Abstract
This paper aims to experimentally investigate the partial premixed combustion in a structure ceramic porous burner for cooking applications. The thermal efficiency, pollutant emission, heat transfer rate and burner performance map are assessed. Moreover, in the analysis of the thermal efficiency behavior, the contribution of the convective and radiative heat transfer rates is separately studied. In this study, aluminum containers with dimensions according to Iran's national standard have been used in a wide range of thermal power range of 1.83-9.83 kW and equivalence ratio of 0.5-1.2. Natural gas has been used as the most used and most common fuel in domestic gas stoves. The results show that with the increase of the equivalence ratio from dilute to rich combustion, the shape and color of the flame changes significantly and the blue flame turns into a yellow flame with longer radiation. The best working point of the burner in terms of thermal efficiency has a thermal power of 1.83 kW and an equivalence ratio of 0.7, which is 58.33%. At this working point, the emission rate of CO pollutants is lower than the national standard of Iran, and the amount of NO_x is below 1ppm in all tests.
Keywords
partial premixed combustion
porous medium burner
thermal efficiency
heat transfer
stability map

Subjects

[1] Chaffin, C., et al. Experimental investigation of premixed combustion within highly porous media. in Proceedings of the 1991 ASME JSME thermal engineering joint conference. 1991.
[2] Howell, J., M. Hall, and J. Ellzey, Combustion of hydrocarbon fuels within porous inert media. Progress in Energy and Combustion Science, 1996. 22(2): p. 121-145.
[3] Khanna, V., R. Goel, and J. Ellzey, Measurements of emissions and radiation for methane combustion within a porous medium burner. Combustion science and technology, 1994. 99(1-3): p. 133-142.
[4] Trimis, D. and K. Wawrzinek, Flame stabilization of highly diffusive gas mixtures in porous inert media. J Comput Appl Mech, 2004. 5(2): p. 367-381.
[5] Bubnovich, V., et al., Flame stabilization between two beds of alumina balls in a porous burner. Applied Thermal Engineering, 2010. 30(2-3): p. 92-95.
[6] Charoensuk, J. and A. Lapirattanakun, On flame stability, temperature distribution and burnout of air-staged porous media combustor firing LPG with different porosity and excess air. Applied Thermal Engineering, 2011. 31(16): p. 3125-3141.
[7] Catapan, R., A. Oliveira, and M. Costa, Non-uniform velocity profile mechanism for flame stabilization in a porous radiant burner. Experimental Thermal and Fluid Science, 2011. 35(1): p. 172-179.
[8] Wu, D., et al., Experimental investigation on low velocity filtration Combustion in porous packed bed using gaseous and liquid fuels. Experimental thermal and fluid science, 2012. 36: p. 169-177.
[9] Keramiotis, C., et al., Porous burners for low emission combustion: An experimental investigation. Energy, 2012. 45(1): p. 213-219.
[10] Keramiotis, C. and M.A. Founti, An experimental investigation of stability and operation of a biogas fueled porous burner. Fuel, 2013. 103: p. 278-284.
[11] Al-Attab, K., J.C. Ho, and Z. Zainal, Experimental investigation of submerged flame in packed bed porous media burner fueled by low heating value producer gas. Experimental Thermal and Fluid Science, 2015. 62: p. 1-8.
[12] Shakiba, S.A., et al., Effects of foam structure and material on the performance of premixed porous ceramic burner. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2015. 229(2): p. 176-191.
[13] Ghorashi, S.A., et al., Experimental study on pollutant emissions in the novel combined porous-free flame burner. Energy, 2018. 162: p. 517-525.
[14] Chaelek, A., U.M. Grare, and S. Jugjai, Self-aspirating/air-preheating porous medium gas burner. Applied thermal engineering, 2019. 153: p. 181-189.
[15] Muthukumar, P. and P. Shyamkumar, Development of novel porous radiant burners for LPG cooking applications. Fuel, 2013. 112: p. 562-566.
[16] Hossein Soltanian, Mehdi Maerefat, Mohammad Zabetian Targhi, On the drastic improvement of porous burner efficiency, Thermal Science and EngineeringProgress, Vol 41, 1 Ju 2023, 101832.
[17] ISIRI 10325, Domestic cooking appliances burning gas Specifications and test methods, vol. 3, no. 1, 2007.