Affiliation:
1. School of Engineering, London South Bank University, London SE1 0AA, UK
Abstract
Abstract
Due to recent regulation changes to restricted fuel usage in various motor-sport events, motor-sport engine manufacturers have started to focus on improving the thermal efficiency and often claim thermal efficiency figures well above equivalent road car engines. With limited fuel allowance, motor-sport engines are operated with a lean air–fuel mixture to benefit from higher cycle efficiency, requiring an ignition system that is suitable for the lean mixture. Prechamber ignition is identified as a promising method to improve lean limit and has the potential to reduce end gas auto-ignition. This paper analyses the full-load performance of a motor-sport lean-burn gasoline direct injection (GDI) engine and a passive prechamber is developed with the aid of a computational fluid dynamics (CFD) tool. The finalized prechamber design benefited in a significant reduction in burn duration, reduced cyclic variation, knock limit extension, and higher performance.
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference30 articles.
1. FIA Formula One World Championship Regulations,2018
2. Energy Technology Perspectives 2012: Pathways to a Clean Energy System;International Energy Agency;Report,2012
3. A Review of Prechamber Initiated Jet Ignition Combustion Systems,2010
4. A Computational Study on the Effect of the Orifice Size on the Performance of a Turbulent Jet Ignition System;Proc. Inst. Mech. Eng., Part D,2017
5. A Computational Study of the Effects of Spark Location on the Performance of a Turbulent Jet Ignition System,2016
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