The balance between surface and kinetic energies within an optimal micro-explosion

Date

2016-09-01

Author

Tarlet, Dominique
Allouis, Christophe Gerard
Bellettre, Jerome

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Micro-explosion is caused by the sudden vaporization of water drops inside water-in-oil emulsion. Past studies have shown an optimal diameter for dispersed water. This optimal micro-explosion produces the largest number of secondary droplets, i.e. the largest interfacial area among the resulting spray. Such an increase in the interfacial area within the spray causes a better and less polluting combustion process. By using an infra-red camera, the present experiments can measure the size and planar velocity of secondary droplets issued from an optimal and also a non-optimal emulsion. The distributions of kinetic energy and surface energy among the spray are then calculated and discussed. Among the secondary droplets, it results that the optimal micro-explosion favors surface energy over kinetic energy. (C) 2016 Elsevier Masson SAS. All rights reserved.

URI

https://hdl.handle.net/11511/89861

Journal

INTERNATIONAL JOURNAL OF THERMAL SCIENCES

DOI

https://doi.org/10.1016/j.ijthermalsci.2016.04.008

Collections

Department of Mechanical Engineering, Article

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Citation Formats

D. Tarlet, C. G. Allouis, and J. Bellettre, “The balance between surface and kinetic energies within an optimal micro-explosion,” INTERNATIONAL JOURNAL OF THERMAL SCIENCES, pp. 179–183, 2016, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89861.