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Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization

Homogeneous charge compression ignition engines require a smart control system to regulate the input quantities of the engine in various operational conditions. Achieving an optimum combustion needs an appropriate system response for different engine loads and speeds according to the power acquired...

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Main Authors:	Mohebbi, M., Abdul Aziz, A., Hosseini, V., Ramzannezhad, M., Shafaghat, R.
Format:	Article
Published:	SAGE Publications Ltd 2017
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/75694/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85023165077&doi=10.1177%2f0954407016667891&partnerID=40&md5=f449f4e7c87c01df73c3d7c35267779a
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spelling	my.utm.756942018-04-27T01:46:01Z http://eprints.utm.my/id/eprint/75694/ Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization Mohebbi, M. Abdul Aziz, A. Hosseini, V. Ramzannezhad, M. Shafaghat, R. TJ Mechanical engineering and machinery Homogeneous charge compression ignition engines require a smart control system to regulate the input quantities of the engine in various operational conditions. Achieving an optimum combustion needs an appropriate system response for different engine loads and speeds according to the power acquired from the engine, as well as the amounts of emissions present in the exhaust. Therefore, performing a set of experimental tests together with numerical simulations in a wide range of conditions facilitates calibration of the input parameters of the engine. In this study, the effects of the thermodynamic parameters and the thermokinetic parameters on the engine output in the preliminary design stage were obtained at different speeds to determine the optimum exhaust emissions, the optimum combustion timing and the ranges of misfiring and knock, using multiple-zone thermodynamic modelling. On the assumption that the simulation cycle is closed, the probability density function was used to determine the initial conditions for the temperature and the residual gas from the previous cycle mass distribution in each area inside the cylinder. The results obtained proved that the kinetic properties of the mixture due to the effects of the the air-to-fuel ratio, the percentage of exhaust gas recirculation and the percentage of reformer gas have dominant effects on the output in comparison with the thermodynamic parameters such as the intake pressure and the intake temperature. At low speeds, exhaust gas recirculation retards combustion and delays engine knock. At higher engine speeds, the reformer gas advances combustion and improves misfiring. SAGE Publications Ltd 2017 Article PeerReviewed Mohebbi, M. and Abdul Aziz, A. and Hosseini, V. and Ramzannezhad, M. and Shafaghat, R. (2017) Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 231 (8). pp. 1001-1021. ISSN 0954-4070 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85023165077&doi=10.1177%2f0954407016667891&partnerID=40&md5=f449f4e7c87c01df73c3d7c35267779a
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mohebbi, M. Abdul Aziz, A. Hosseini, V. Ramzannezhad, M. Shafaghat, R. Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization
description	Homogeneous charge compression ignition engines require a smart control system to regulate the input quantities of the engine in various operational conditions. Achieving an optimum combustion needs an appropriate system response for different engine loads and speeds according to the power acquired from the engine, as well as the amounts of emissions present in the exhaust. Therefore, performing a set of experimental tests together with numerical simulations in a wide range of conditions facilitates calibration of the input parameters of the engine. In this study, the effects of the thermodynamic parameters and the thermokinetic parameters on the engine output in the preliminary design stage were obtained at different speeds to determine the optimum exhaust emissions, the optimum combustion timing and the ranges of misfiring and knock, using multiple-zone thermodynamic modelling. On the assumption that the simulation cycle is closed, the probability density function was used to determine the initial conditions for the temperature and the residual gas from the previous cycle mass distribution in each area inside the cylinder. The results obtained proved that the kinetic properties of the mixture due to the effects of the the air-to-fuel ratio, the percentage of exhaust gas recirculation and the percentage of reformer gas have dominant effects on the output in comparison with the thermodynamic parameters such as the intake pressure and the intake temperature. At low speeds, exhaust gas recirculation retards combustion and delays engine knock. At higher engine speeds, the reformer gas advances combustion and improves misfiring.
format	Article
author	Mohebbi, M. Abdul Aziz, A. Hosseini, V. Ramzannezhad, M. Shafaghat, R.
author_facet	Mohebbi, M. Abdul Aziz, A. Hosseini, V. Ramzannezhad, M. Shafaghat, R.
author_sort	Mohebbi, M.
title	Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization
title_short	Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization
title_full	Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization
title_fullStr	Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization
title_full_unstemmed	Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization
title_sort	evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization
publisher	SAGE Publications Ltd
publishDate	2017
url	http://eprints.utm.my/id/eprint/75694/ https://www.scopus.com/inward/record.uri?eid=2-s2.0-85023165077&doi=10.1177%2f0954407016667891&partnerID=40&md5=f449f4e7c87c01df73c3d7c35267779a
_version_	1643657135142207488
score	13.244745

Evaluation of the main operating parameters of a homogeneous charge compression ignition engine for performance optimization

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