Predictive Study of Combustion Temperature of Liquefied Petroleum Gas (LPG) on the Spherical Packed-Bed Porous Burner

Abstract:

The relation between the significant factors and the combustion temperature (T) of Liquid Petroleum Gas (LPG) on the spherical packed-bed porous burner is investigated. Alumina-Cordierite ceramic balls having the average diameter (d) of 3 mm. and the porosity (ε) of 0.322 are employed as porous media. The multiple-linear and multiple-quadratic regressions are used to analyze the data at the equivalence ratio (F) of 0.58 – 0.66 and volumetric premixed-gas flow rate (V_mix) in a range of 10 – 25 m³/h. The porous thickness (H) is in the range of 2.5 – 7.5 cm. Thus, independent variables are F, V_mix and H. The dependent variable is the maximum temperature (T) of combustion LPG on the porous burner. For statistical analysis, both main and interaction of independent variables effecting to the combustion temperature are investigated. The results showed that, for the case of multiple-linear regression, an equations recommended in prediction of the T on porous burner is T = 1375.603(F) +179.636(H) – 295.028(FH) – 9.628(HV_mix) + 16.368(FV_mixH) with a coefficient of determination (R²) of 0.998 and the standard error of the estimation of 42.7365. In the case of multiple- quadratic regression, a proper equation used in predicting T on porous burner is T = 2133.184(F)² + 1.247(V_mix)² + 17.248(H)² – 2.916(FV_mix )² – 42.107(FH)² – 0.049(V_mixH)² + 0.123(FV_mixH)² with R² of 0.997 and standard error of the estimation of 44.2979. In addition, the comparison between the experimental results and the predicted estimation is reported that different percentage of both regressions and experimental results is satisfied.

• Periodical: Key Engineering Materials (Volume 805)
• Pages: 109-115
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.805.109
• Online since: June 2019
• Authors: Rapeepong Peamsuwan*, Anucha Klamnoi, Narongsak Yotha, Bundit Krittacom
• Keywords: Liquid Petroleum Gas (LPG), Multiple-Linear Regression, Multiple-Quadratic Regression, Porous Burner

References

[1] J. R. Howell, M. J. HallM, J. L. Ellzey, Combustion of Hydrocarbon Fuels within Porous Inert Media, Progr. Energy Combust. Sci. 22(2) 121-145.

DOI: 10.1016/0360-1285(96)00001-9

[2] S. Wood and A. T. Harris, Porous Burners for Lean-Burn Applications, Progr. Energy Combust. Sci. 34(5) 667-684.

[3] M. A. Mujeebu, M. Z. Abdullah, M. Z. Abu Bakar, A. A. Mohamad, R. M. N. Muhad and M. K. Abdullah, Combustion in Porous Media and Its Applications – A Comprehensive Survey, J. Envir. Manag. 90(8) 2287-2312.

DOI: 10.1016/j.jenvman.2008.10.009

[4] T. Takeno, K. Sato, An Excess Enthalpy Fame Theory, Combust. Sci. Tech. 20 73–84.

[5] D. Trimis and F. Durst, Combustion in a Porous Medium – Advances and Applications, Combust. Sci. Tech. 121(1–6), 153–168.

[6] R. Echigo, Y. Yoshizawa, K. Hanamura and T. Tomimura, Analytical and experimental studies on radiative propagation in porous media with internal heat generation, Proceeding of the 8th International Heat Transfer Conference, San Francisco, California, USA, (1986).

DOI: 10.1615/ihtc8.4300

[7] Y. Yoshizawa, K. Sakaki and R. Echigo, 1988. Analytical Study of the Structure of Radiation Controlled Flames, International Journal of Heat Mass Transfer, 31(2), 311-319.

[8] Y. K. Chen, R. D. Matthews, I. Lim, Z. Lu and J. R. Howell, Experimental and Theoretical Investigation of Combustion within Porous Inert Media, Proceeding of the 22rd International Symposium Combustion, Pittsburgh, Pennsylvania, USA, August (1988).

[9] P. F. Hsu, W. D. Evans and J. R. Howell, Experimental and Numerical Study of Premixed Combustion Within Non-Homogeneous Porous Ceramics, Combust. Sci. Tech. 90, 149–72.

[10] M. I. Lee, H. D. Shin and S. W. Baek, 1996. Experimentally and numerically investigated the combustion of premixed propane-air mixture inside a honeycomb ceramic, Combust. Sci. Tech. 112(1) 75.

[11] J. C. E. Pereira and X. Y. Zhou, Comparison of Combustion Model for Simulating the Premixed Combustion in Inert Porous Media. Fir. Mater. 22 187-197.

DOI: 10.1002/(sici)1099-1018(199809/10)22:5<187::aid-fam652>3.0.co;2-t

[12] S. A. Leonardi, R. Viskanta and J. P. Gore, Radiation and Thermal Performance Measurements of a Metal Fiber Burner, J. Quantit. Spectrosc. Radiative Transf. 73(2-5) 491-501.

DOI: 10.1016/s0022-4073(01)00201-1

[13] B. Krittacom and K. Kamiuto, Radiation Emission Characteristics of An Open-Cellular Porous Burner. JSME J. Therm. Sci. Tech. 4(1) 13-24.

DOI: 10.1299/jtst.4.13

[14] A. Klamnoi and B. Krittacom, Application of Multiple-linear Regression Method for Predicting NOx Level from the Combustion of Gas Fuel on Packed-bed Porous Burner. Eng. J. 9(1) 31-38.

[15] D. C. Montgomery, E. A. Peck and G. G. Ving, Introduction to Linear Regression Analysis(4th Ed. ).

[16] D. C. Montgomery, 2000. Design and Analysis of Experiments, John Willey & Sons Inc.

[17] T. Takeno and K. Sato, An Excess Enthalpy Flame Theory, Combust. Sci. Tech. 20, 73–84.