Heat release in a direct fuel injection SI two-stroke engine = Wydzielanie ciepła w dwusuwowym silniku ZI z bezpośrednim wtryskiem paliwa / Władysław Mitianiec, Marian Forma // Combustion Engines = ... więcej

Heat release in a direct fuel injection SI two-stroke engine = Wydzielanie ciepła w dwusuwowym silniku ZI z bezpośrednim wtryskiem paliwa / Władysław Mitianiec, Marian Forma // Combustion Engines = Silniki Spalinowe [Dokument elektroniczny]. – Dysk optyczny CD. – 2011, R. 50, No. 3 (146), 8 s. : wykr., schem. – Oznaczenie ref./art.: PTNSS–2011–SC–058.pdf. – Bibliogr. 22 poz., Abstr., Streszcz. – Mat. konf.: 4th International Congress on Combustion Engines, Radom, Poland, 16-17.06.2011. – ISSN 0138-0346

The paper presents a new method of determination of heat release rate on the base of experimental test in a two-stroke engine with direct gasoline injection. The target of the work was achieving of information ... więcej

The paper presents a new method of determination of heat release rate on the base of experimental test in a two-stroke engine with direct gasoline injection. The target of the work was achieving of information about implementation of approximated Viebe function in mathematical models and simulation computer programs of a combustion process in spark ignition two-stroke engine with direct fuel injection due to the lack of such data in the literature. The energy balance equations were derived in oeder todetermine of heat release rate on the base of pressure measurements in the cylinder and change of the cylinder volume in the function of angle of crankshaft rotation. The paper presents several examples of heat release and approximate function, for which variable coefficients of Viebe function were determined for certain rotational speeds at wide openning throttle. Pressure measurements were carried out on the engine Robin EC12 wit capacity 115 cm3. Determination of heat release and burned fuel rate was calculated by means of own computer program. The paper also presents the method of determination of variable specific heat coefficients in the function of crankshaft rotation, which are also used in modeling of the engine processes