MATEC Web Conf.
Volume 82, 20162016 International Conference on Design, Mechanical and Material Engineering (D2ME 2016)
|Number of page(s)||6|
|Section||Chapter 1: Mechanical Engineering|
|Published online||31 October 2016|
Effect of Equivalence Ratio on Composition and performance of Biogas and Gasoline Exhaust from Spark Ignition Engine by Mathematical Modeling
Department of Mechatronic Engineering, Faculty of Engineering. Rajamangala University of Technology Isan, Khonkaen Campus 150 Srichan Road, NaiMuang, Muang, Khonkaen, 40000, Thailand
a Corresponding author: email@example.com
This paper presents the numerical computationnal of pressure, temperature and exhaust characteristics of spark ignition engine with biogas as fuel. The solution of non-linear combustion equation systems have been computed, that based on a quasi-one-dimensional engine model, high order iteration method with the equilibrium constants method. Computer program was used to calculate the mole fractions of 10 combustion products when biogas and gasoline fuel are burnt along with variable equivalence ratios. In cylinder chamber model is based on the classical two-zone approach, wherein parameters like heat transfer from the cylinder, blow by energy loss and heat release rate are also considered and calculated. Biogas is defined as fuel produced from using anaerobic digestion of biodegradable or waste materials and the constituents are C5H7O2N, CH4, CO2 N2 H2O of biogas and C7H17 of gosoline. Which general fuel model is specified by way of its CaHbOcNd values. The curve-fitted coefficients of energy were then employed to simulate air and fuels data along with frozen composition and practical chemical equilibrium routines from Gill data. The calculated data were used to plot the various pressure and temperature with the crank angle of each step of four stroke engine cycle and combustion products versus equivalence ratio. All results were compared with gasoline as reference fuel in the spark ignition engine according to the same numerical method.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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