Numerical investigation of lambda-value prechamber ignition in heavy duty natural gas engine

• Autorzy: Pielecha Ireneusz

Identyfikatory

DOI

10.19206/CE-2020-205

• Języki publikacji: EN

Abstrakty

EN

Turbulent Jet Ignition systems are mainly dedicated to the combustion of lean mixtures of natural gas in heavy duty engines. The use of such a system in combination with lean mixtures leads to an increase in its overall efficiency. The article presents simulation analyzes of the impact of the air excess coefficient occurring in prechamber on the combustion process: combustion indicators and emission indicators. Tests on a single-cylinder engine with a displacement of about 4 dm3 at medium mixture (IMEP = 1.0 MPa) were carried out using the AVL Fire software. It was found that the incineration of global lean mixtures (λ = 2) is effective when initiating this process (in the prechamber) with a charge of a stoichiometric composition. A strong relationship was found between the thermodynamic indicators in both prechamber and main chamber and the air excess coefficient initiating combustion.

Słowa kluczowe

EN

turbulent jet ignition; combustion thermodynamics; combustion process indicators; numerical simulation

PL

turbulentny zapłon odrzutowy; termodynamika spalania; wskaźniki procesu spalania; symulacja numeryczna

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2020
• Tom: R. 59, nr 2
• Strony: 31--39
• Opis fizyczny: Bibliogr. 19 poz., il. kolor., 1 rys., wykr.

Twórcy

autor

Pielecha Ireneusz

• Faculty of Civil and Transport Engineering, Poznan University of Technology

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).