Calculated-experimental determination of the parameters of heat exchange in the cylinder of the engine with spark ignition

Authors: Bolotov P.O.
Published in issue: #9(26)/2018
DOI: 10.18698/2541-8009-2018-9-381
Category: Power, Metallurgic and Chemical Engineering | Chapter: Heat Engines
Keywords: optimization, piston engine, numerical method, Vibe formula, objective function, indicator diagram, combustion model, full enumeration method, gradient method
Published: 01.10.2018

The article deals with the numerical methods by which the mathematical models are verified. These methods should be used to develop new engines, as well as to obtain the correct results of mathematical modeling. Due to this approach, material and time costs at the development stage are significantly reduced. The algorithm for processing the experimental data is presented. The approach to selecting semi-empirical Vibe coefficients for verification of a mathematical model from experimental data is proposed. Comparison of two optimization methods is carried out. The integral of the modulus of the difference of the squares of the experimental and calculated dependences is chosen as the objective function.

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