MATEC Web Conf.
Volume 90, 2017The 2nd International Conference on Automotive Innovation and Green Vehicle (AiGEV 2016)
|Number of page(s)||12|
|Published online||20 December 2016|
The effect of orifice diameter in constant volume chamber to spray characteristics in diesel engine using computational fluid dynamic
1 Centre of Energy and Industrial Environment, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia
2 Faculty of Mechanical Engineering, Universiti Tun Hseein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia
* Corresponding author: email@example.com
Mixture formation of the ignition process is a crucial part in diesel combustion as it affects the combustion process and exhaust emission. The main focus of this study is to investigate the effects of spray characteristic to the fuel spray in a chamber using Computational Fluid Dynamics (CFD) simulation. However, simulations are done with the discrete phase of injection taken from the outlet of the nozzle hole to spray chamber. The details behavior of spray penetration and spray breakup length were visualized using Computational Fluid Dynamics. This simulation was done in different nozzle diameters 0.12 mm and 0.2 mm performed at a single ambient pressure of 4 MPa, the ambient temperature of 500 K and 700 K with different injection pressure 40 MPa, 70 MPa and 140 MPa. Results showed that the droplet diameter is influenced by high pressure to become smaller, and the penetration length also longer with high injection pressure applied. Besides, smaller orifice diameter gives a shorter length of the breakup. It is necessary to put afford on orifice diameter and ambient temperature conditions in order to improve the formation of spray.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.