Implementation of CMC in a 0-D single-zone model of a diesel HCCI engine

Hairuddin, A. Aziz and Yusaf, Talal and Wandel, Andrew P. (2013) Implementation of CMC in a 0-D single-zone model of a diesel HCCI engine. In: 7th Australian Combustion Symposium (ACS 2013), 6-8 Nov 2013, Perth, Australia .

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Abstract

Homogeneous charge compression ignition (HCCI) engines use a new mode of combustion where, in principle, there is no spark plug or fuel injector to initiate the combustion. The combustion is self-ignited once the mixture has reached its chemical activation energy. Thus, the combustion is fully controlled by the chemical kinetics mechanism. A zero-dimensional (0-D) single-zone (homogeneous) model was used to study the combustion behaviour, where the model is able to reduce the computing time. A Conditional Moment Closure (CMC) model was then implemented in this 0-D environment to account for the turbulent mixing effects in the combustion chamber. The results show that the use of CMC in a 0-D environment improves on the results from the homogeneous model by eliminating the characteristics of short combustion duration and high peak pressure of the homogeneous model. The model is also in a good agreement with experiment and thus can be used for further analysis.


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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.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 01 Apr 2014 05:42
Last Modified: 15 Dec 2014 02:42
Uncontrolled Keywords: CMC; diesel HCCI; zero-dimensional; 0-D; single-zone; homogeneous
Fields of Research : 09 Engineering > 0915 Interdisciplinary Engineering > 091501 Computational Fluid Dynamics
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/24773

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