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| Abstract No.: |
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Scheduled at:
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Thursday, September 29, 2011, Saal B2.1 10:15 AM
Modeling & Simulation 3
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| Title: |
Heat and mass transfer within an evaporating solution droplet in a plasma jet
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| Authors: |
Yanguang Shan* / School of Energy and Power Engineering, University of Shanghai for Science and Technology, China
Hu Yuan / University of Shanghai for Science and Technology, China
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| Abstract: |
A thermal physical model is developed to analyze the behavior of an individual precursor droplet travelling in a high temperature plasma jet. This model involves the motion and evaporation of the droplet in the plasma environment and the heat and mass transfer within the droplet. The influence of Stefan flow and the variable physical properties of the solution and environment gases are considered. The internal circulation due to the relative velocity between the droplet and the plasma jet which can be described by the Hills spherical vortex is considered as well. The trajectory, temporal droplet surface temperature and radius variation are predicted. The temperature and concentration distribution inside the droplet as well as the difference between the droplets with different injection parameters are presented.
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