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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 66, 2014 - Issue 8
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Original Articles

Development of an Improved Multi-Component Vaporization Model for Application in Oxygen-Enriched and EGR Conditions

Ping Yi School of Energy and Power Engineering, Dalian University of Technology, Dalian, P.R. China
,
Liyan Feng School of Energy and Power Engineering, Dalian University of Technology, Dalian, P.R. China
,
Ming Jia School of Energy and Power Engineering, Dalian University of Technology, Dalian, P.R. ChinaCorrespondence[email protected]
,
Wuqiang Long School of Energy and Power Engineering, Dalian University of Technology, Dalian, P.R. China
&
Jiangping Tian School of Energy and Power Engineering, Dalian University of Technology, Dalian, P.R. China
Pages 904-927 | Received 05 Dec 2013, Accepted 20 Jan 2014, Published online: 25 Jun 2014
 
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Abstract

An improved multi-component vaporization model was developed and applied to predict the vaporization characteristics of a fuel droplet under oxygen-enriched and exhaust gas recirculation (EGR) conditions in this study. The model was constructed including an improved enthalpy diffusion sub-model, a corrected Stefan flow velocity, and temporal variation of thermal physical properties. The computational results were validated with the experimental data and satisfactory agreements between the predictions and measurements can be achieved. The effects of O2, CO2 concentration, and EGR on the vaporization rate of fuel droplet in various ambient temperature and pressure conditions were investigated.

Notes

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