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Proceedings of CHT-08 ICHMT International Symposium on Advances in Computational Heat Transfer
May, 11-16, 2008, Marrakesh, Morocco

DOI: 10.1615/ICHMT.2008.CHT


ISBN Print: 978-1-56700-253-9

ISSN: 2578-5486

VAPORIZATION OF LIQUID FUELS DROPLETS (N-ALKANES) UNDER HEATING EFFECT

page 17
DOI: 10.1615/ICHMT.2008.CHT.2420
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ABSTRAKT

This work presents a theoretical study of the vaporization of liquid fuel droplets (n-alkanes) in the air under stagnant conditions (ambient pressure and temperature, then at variable environment temperatures). Moreover the vaporization of a turbulent flow has also been studied. The results show that liquid fuel droplets which have the lowest molar mass vaporize quickly. Vaporization rate becomes more significant when environment temperature increases. This is confirmed by the experimental results of Birouk (1996). Average and instantaneous vaporization rates have been estimated from D2 law at temperatures varying from 473 to 1024 K and at atmospheric pressure. Finally, experimental results obtained with n-alkanes droplets (from n-pentane to n-pentane) and those obtained from predictions based on the quasi-steady theory and simulation using simple finite-volume techniques, are presented, then a comparative discussion is carried out.

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