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Influence of injection and ignition of CNG fuelled direct injection engine at constant speed


Citation

Hassan, Mohd Khair and Aris, Ishak and Bashi, Sinan Mahmod and Mohd Sidek, Roslina (2010) Influence of injection and ignition of CNG fuelled direct injection engine at constant speed. Australian Journal of Basic and Applied Sciences, 4 (10). pp. 4870-4879. ISSN 1991-8178

Abstract / Synopsis

This paper presents an experimental result of engine performance and exhaust gases concentration at various ignition and injection timing for high compression engine fuelled with compressed natural gas (CNG) engine. The engine implements central direct injection (DI) method. All injectors are positioned within a certain degrees of spark plug. It is called as CNGDI engine. The objective of this experiment is to study the influence of injection and ignition towards brake torque, brake power and emission at maximum brake torque (MBT) interval. The experimental tests were carried out using computer-controlled eddy-current dynamometer which measures the CNGDI engine performance. The Horiba analyzer uses infra-red for CO, CO2, HC and flame ionization for THC for emission measurement. A closed loop wide band lambda sensor has been mounted at the exhaust manifold to indicate the oxygen level during the exercise. The emission concentration level was recorded with respects to engine speed, ignition timing and injection timing. Indicated power and torque of CNGDI engine were also monitored during the course.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Institute of Advanced Technology
Publisher: American-Eurasian Network for Scientific Information
Keywords: Compressed natural gas; High compression engine; CNGDI engine; Ignition timing; Exhaust emission of CNGDI engine; Direct injection MBT of CNGDI
Depositing User: Nabilah Mustapa
Date Deposited: 09 May 2019 09:26
Last Modified: 09 May 2019 09:26
URI: http://psasir.upm.edu.my/id/eprint/15205
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