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Analysis of diesel spray evaporation process in high density and high temperature atmosphere

Kidoguchi, Y. and Nada, Y. and Sapit, A. and Nakagiri, M. (2013) Analysis of diesel spray evaporation process in high density and high temperature atmosphere. Transactions of the Japan Society of Mechanical Engineers, Part B, 79 (799). pp. 399-405. ISSN 03875016

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Diesel engines, in recent years, come lo apply high pressure charging and high EGR to improve engine performance. In this situation, it is important to study on diesel spray behavior and mixture formation under those kinds of condition. This study investigates diesel spray development and micro-scale characteristics of droplets evaporation including atomization under high density and high temperature atmosphere. Experiment was carried out by shadowgraph photography method. Our system has a nano-spark light source to illuminate spray injected into spray chamber. The image analysis can reveal droplets size-distribution and droplets dynamic behavior at spray boundary. Results indicate that, at early stage of injection, high atmospheric density accompanied with high temperature greatly affects droplets atomization and evaporation at spray boundary. High density atmosphere produces small-size droplets. Evaporation of large-size droplets is improved with high density and high temperature atmosphere.

Item Type: Article
Uncontrolled Keywords: Atomization; diesel engine; droplets; evaporation; high density atmosphere; spray
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ751-805 Miscellaneous motors and engines
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Energy and Thermofluid Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 20 Feb 2019 08:12
Last Modified: 20 Feb 2019 08:12
URI: http://eprints.uthm.edu.my/id/eprint/10746
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