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: Australian Combustion Symposium 2011 (ACS 2011), 29 Nov-1 Dec 2011, Newcastle, Australia.
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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.
|Item Type:||Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)|
|Additional Information:||No evidence of copyright restrictions preventing deposit. Title in table of contents is: Combustion control of a diesel HCCI engine using a zero-dimensional single-zone model|
|Uncontrolled Keywords:||diesel HCCI; zero-dimensional; single-zone|
|Depositing User:||Mr Abdul Aziz Hairuddin|
|Date Deposited:||25 Jan 2012 01:55|
|Last Modified:||03 Jul 2013 00:56|
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