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Publication
Adjustment parameters of an internal combustion engine working with methane
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Advisor(s)
Abstract(s)
The paper presents a study of the variation of ignition advance when the engine works with methane and a comparison with values when the engine runs on gasoline. It is known that methane has a lower burning velocity than gasoline, and therefore, to obtain a maximal efficiency from the working process (the maximum value of cylinder pressure pz should be 7-15 degrees after TDC), ignition advance should be increased, as for different operating regimes this angle should be increased with different values. A gasoline engine has been studied and were measured and analysed the ignition advance at work with gasoline and methane, with optimal air-fuel ratio (α) for both fuels. Three-dimensional graphics of ignition advance variation across the rpm and load range were made. In conclusion, on the basis of the experiments, a table is produced, which presents the values of coefficients for change of base parameters of ignition advance for all engine operating modes, in dependence on rpm and load of the engine.
Description
Keywords
Gasoline Methane Railroads Adjustment parameter Air fuel ratios Burning velocity Cylinder pressures Gasoline engines Ignition advance Operating regimes Three-dimensional graphics
Pedagogical Context
Citation
Dimitrov, R., Bogdanov, K., Wrobel, R., Serrano, L., & Mihaylov, V. (2019, October). Adjustment parameters of an internal combustion engine working with methane. In IOP Conference Series: Materials Science and Engineering (Vol. 664, No. 1, p. 012020). IOP Publishing. https://iopscience.iop.org/article/10.1088/1757-899X/664/1/012020
Publisher
IOP Publishing