Predicting the combustion behaviour of a diesel HCCI engine using a zero-dimensional single-zone model

Hairuddin, A. Aziz and Yusaf, Talal F. and Wandel, Andrew P. (2011) Predicting the combustion behaviour of a diesel HCCI engine using a zero-dimensional single-zone model. In: 11th Australian Combustion Symposium (ACS 2011), 29 Nov-1 Dec 2011, Newcastle, Australia.

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Abstract

Homogeneous charge compression ignition (HCCI) engines use a new mode of combustion whose technology has not matured sufficiently to be commercialized. There are several challenges in developing HCCI engines: auto-ignition control of the mixture, achieving a cold start and controlling knock at high load operation. In principal, HCCI engines have no spark plug or fuel injector to control the combustion: auto-ignition occurs in multiple spots once the mixture has reached its chemical activation energy. The chemical reaction of the mixture is influenced by changing input parameters such as: intake temperature, equivalence ratio and fuel type. A zero-dimensional single-zone model is used to investigate the combustion behaviour of a diesel engine operating in HCCI mode, with n-heptane used as a surrogate fuel for diesel. The combustion phasing is predicted in accordance with the experiment, with higher in-cylinder peak pressure. This paper will study methods of controlling the auto-ignition timing through hydrogen addition and by altering the intake air temperature and equivalence ratio. The auto-ignition timing changes with the change of all those factors, where the combustion phasing is advanced by increasing all the parameters.

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Item Type:	Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed:	Yes
Item Status:	Live Archive
Additional Information:	This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source. Title in table of contents is: Combustion control of a diesel HCCI engine using a zero-dimensional single-zone model
Faculty/School / Institute/Centre:	Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited:	25 Jan 2012 01:55
Last Modified:	02 Dec 2014 05:43
Uncontrolled Keywords:	diesel HCCI; zero-dimensional; single-zone
Fields of Research :	09 Engineering > 0913 Mechanical Engineering > 091306 Microelectromechanical Systems (MEMS) 09 Engineering > 0902 Automotive Engineering > 090201 Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels) 09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective:	E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI:	http://eprints.usq.edu.au/id/eprint/20330

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