Chemical kinetics analysis of NO and CO formation based on thermodynamic data from an ethanol-fueled engine computational model / Análise de cinética química da formação de NO e CO baseada em dados termodinâmicos de um modelo computacional de um motor alimentado a etanol

Authors

  • Alessandro José Truta Beserra de Lima
  • Waldyr Luiz Ribeiro Gallo

DOI:

https://doi.org/10.34117/bjdv5n8-097.

Keywords:

Spark-ignition engines, Nitric oxide, Carbon monoxide, chemical kinetics modeling, pollutant formation

Abstract

The series of the oretical analyses of pollutant formation has been undertaken on a computer program based on temperature and volume data from a two-zone internal combustion engine model. The objective was to predict the formation of nitric oxide and carbon monoxide during combustion process in an ethanol-fueled engine before the three-way catalyst operation. The predictions were based on a chemical kinetics model, which considered 12 chemical species and 22 chemical reactions. The model calculated the reaction rates from the beginning of the combustion process until chemical kinetics calculations showed no effect on the gases composition during expansion. The developed analysis tested some temperatures in order to discover until when chemical kinetics effectiveness was considerable. This analysis involved the study of NO and CO formation rates. The considered range of temperatures was between 2500 and 1500K, typical engine temperatures during combustion and expansion processes. Results showed that NO and CO.

References

N. D. Brinkman, “Ethanol Fuel-A Single-Cylinder Engine Study of Efficiency and Exhaust Emissions,” in SAE Trans., 1981, vol. 90, no. 810345, pp. 83–97.

M. E. Dias de Oliveira, B. E. Vaughan, and E. J. Rykiel Jr., “Ethanol as Fuel?: Energy , Carbon Dioxide Balances , and Ecological Footprint,” Bioscience, vol. 55, no. 7, pp. 593–602, 2005.

L. J. Spadaccini and W. Chinitz, “An Investigation of Nonequilibrium Effects in an Internal Combustion Engine,” J. Eng. Power, vol. 94, no. 2, p. 98, 1972.

H. K. Newhall, “Kinetics of engine-generated nitrogen oxides and carbon monoxide,” Symp. Combust., vol. 12, no. 1, pp. 603–613, Jan. 1969.

W. J. D. Annand, “First Paper: Effects of Simplifying Kinetic Assumptions in Calculating Nitric Oxide Formation in Spark-Ignition Engines,” Proc. Inst. Mech. Eng., vol. 188, no. 1, pp. 431–436, Jun. 1974.

R. J. Kee, M. E. Coltrin, and P. Glarborg, Chemically reacting flow?: theory and practice, 1st ed. John Wiley & Sons, 2003.

R. L. Burden and A. G. Faires, Numerical Analysis, 9th ed. Cencage Learning, 2013.

R. J. B. Way, “Methods for Determination of Composition and Thermodynamic Properties of Combustion Products for Internal Combustion Engine Calculations,” Proc. Inst. Mech. Eng., vol. 190, no. 1, pp. 687–697, Jun. 1976.

W. Tsang and R. F. Hampson, “Chemical Kinetic Data Base for Combustion Chemistry. Part I. Methane and Related Compounds,” J. Phys. Chem. Ref. Data, vol. 15, no. 3, pp. 1087–1279, Jul. 1986.

D. L. Baulch et al., “Evaluated Kinetic Data for Combustion Modelling,” J. Phys. Chem. Ref. Data, vol. 21, no. 3, pp. 411–734, May 1992.

V. Lissianski, H. Yang, Z. Qin, M. R. Mueller, K. S. Shin, and W. C. Gardiner, “High-temperature measurements of the rate coefficient of the H + CO2 => CO + OH reaction,” Chem. Phys. Lett., vol. 240, no. 1, pp. 57–62, 1995.

M. V. K. Raggi, “Modelagem da Cinética Química de Formação de NOx e CO em Motores de Ignição por Centelha,” PUC MG, 2005.

D. J. Patterson, Emissions from combustion engines and their control, 1st ed. Ann Arbor: Ann Arbor Science Publishers, 1972.

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Published

2019-08-23

How to Cite

Lima, A. J. T. B. de, & Gallo, W. L. R. (2019). Chemical kinetics analysis of NO and CO formation based on thermodynamic data from an ethanol-fueled engine computational model / Análise de cinética química da formação de NO e CO baseada em dados termodinâmicos de um modelo computacional de um motor alimentado a etanol. Brazilian Journal of Development, 5(8), 12607–12622. https://doi.org/10.34117/bjdv5n8-097.

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Original Papers