Development of a 1D simulation model to optimize performance and emissions of large gas engines

Dimitar Dimitrov*, Gernot Kammel, Erich Egert, Nicole Wermuth, Andreas Wimmer

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

The main subject of this paper is the development of a multicylinder engine model for the prediction and optimization of engine performance based on one-dimensional (1D) simulation. 1D simulation is widely used to preoptimize engine geometry and operating parameters to achieve performance targets and comply with operational and emission constraints. Due to the short calculation times, 1D
simulation allows the evaluation of a larger number of variants. As new engine concepts are developed, many operating parameters are first defined and optimized with a 1D multicylinder engine model. This model illustrates the full complexity of the engine with its geometry, turbocharging and combustion parameters. In this paper the design of experiments (DoE) method is used in connection with 1D simulation to determine the optimal engine configuration as well as parameters related to the combustion process, i.e., valve timing, compression ratio, ignition timing, excess air ratio. This approach enables the determination of the maximum engine efficiency while taking the boundary
conditions and the constraints of nitrogen oxide emissions (NOx) and knock into account. The method also enables the reduction of the cylinder-to-cylinder deviations by improving the gas dynamics and the fuel metering in the main combustion chamber and in the prechamber, which is especially important for the multicylinder engine. The simulation results are validated with experimental investigations on a single cylinder research engine
Originalspracheenglisch
TitelProceedings trans & MOTAUTO 2022
Herausgeber (Verlag)Scientific-Technical Union of Mechanical Engineering „Industry-4.0"
Seiten100 - 103
Seitenumfang4
PublikationsstatusVeröffentlicht - 20 Juni 2022
VeranstaltungXXX International Scientific Conference on Transport, Road-Building, Agricultural, Hoisting & Hauling and Military Technics and Technologies 2022 (trans&MOTAUTO Conference): trans&MOTAUTO 2022 - Varna, Bulgarien
Dauer: 20 Juni 202223 Juni 2022

Konferenz

KonferenzXXX International Scientific Conference on Transport, Road-Building, Agricultural, Hoisting & Hauling and Military Technics and Technologies 2022 (trans&MOTAUTO Conference)
Kurztiteltrans&MOTAUTO 2022
Land/GebietBulgarien
OrtVarna
Zeitraum20/06/2223/06/22

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