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Study of Airflow Quality in the Intake Passage to Improve the Combustion Efficiency

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Increasing the engine performances is a prime objective in order to meet regulatory and customers demand. One of the methods to increase the engine performances is by improving the airflow quality in the engine cylinder. The air flow quality through the intake is a critical factor in obtaining good performance on an engine. Given in this context, the airflow efficiency of an original intake passage design was initially investigate and has been studied when operating at discrete valve lift. Then, an improvement design was proposed in order to improve the airflow efficiency that is produced by the actual design. Design evaluation of engine intake port using virtual flow bench “CFD” is significantly improved by identifying best practices which reduce turnaround time for product realization. CFD results of actual and improvement design were compared for its efficiency and to develop a standard methodology for future iterations. Mass flow rate, turbulent intensity and swirl number calculated through CFD for both designs explained the behavior of air in the combustion chamber that affects the combustion efficiency.
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Keywords: CFD; Mass Flow Rate; Swirl Number; Turbulent Intensity

Document Type: Research Article

Affiliations: 1: Unit Penyelidikan Teknologi Sukan Permotoran, MOTECH (Motorsport Technology Research Unit), Universiti Malaysia Perlis (UniMAP), Pauh Putra Campus, 02600 Arau, Perlis, Malaysia 2: School of Mechatronic Engineering, Universiti Malaysia Perlis (UniMAP), Pauh Putra Campus, 02600 Arau, Perlis, Malaysia

Publication date: November 1, 2017

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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