Publicado 12 números por año
ISSN Imprimir: 1044-5110
ISSN En Línea: 1936-2684
Indexed in
VAPORIZATION CHARACTERISTICS OF ETHANOL AND 1-PROPANOL DROPLETS AT HIGH TEMPERATURES
SINOPSIS
A detailed description of the vaporization of an isolated droplet has been carried out in this experimental study aimed at investigating ethanol and another aliphatic alcohol, 1-propanol. The characterization of the vaporization phenomenon is necessary for this liquid fuel to develop efficient design of injection systems for propulsion and power generation. Particularly, the vaporization rates and their dependency on temperature, important features for modeling and design, are explored for both ethanol and 1-propanol at intermediate to high temperatures. The experimental setup consists of a pressure chamber in which the furnace, the droplet formation, the droplet support, and motion devices are located. An alcohol droplet is located at the intersection of the cross quartz fiber (diameter of 14 μm) with a controlled initial diameter (range of 300−600 μm). Ambient temperature is varied from 298 to 973 K, at atmospheric pressure. The "quasi-steady" theory has been used to compare and to explain all experimental results. The results show that the d2 law is obeyed and an average vaporization rate is achieved in the case of 1-propanol vaporization. On the other hand, the real impact of the water concentration on the vaporization rate of an ethanol droplet in a large range of temperature is also examined, where two "quasi-steady" periods are observed on the d2 curves, clearly showing that the vaporization of an ethanol droplet is accompanied by the simultaneous condensation of water vapor on the droplet surface and thus the temporal evolution of the droplet squared diameter exhibits an unsteady behavior. The histories of the instantaneous vaporization rates calculated from the d2(t) curves of both 1-propanol and ethanol droplets confirm this phenomenon.
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Lemoine Fabrice, Castanet Guillaume, Temperature and chemical composition of droplets by optical measurement techniques: a state-of-the-art review, Experiments in Fluids, 54, 7, 2013. Crossref
-
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-
Pletser Vladimir, European aircraft parabolic flights for microgravity research, applications and exploration: A review, REACH, 1, 2016. Crossref
-
Verwey Cameron, Birouk Madjid, Experimental investigation of the effect of droplet size on the vaporization process in ambient turbulence, Combustion and Flame, 182, 2017. Crossref
-
Sacomano Filho Fernando Luiz, Krieger Filho Guenther Carlos, van Oijen Jeroen Adrianus, Sadiki Amsini, Janicka Johannes, A novel strategy to accurately represent the carrier gas properties of droplets evaporating in a combustion environment, International Journal of Heat and Mass Transfer, 137, 2019. Crossref
-
Yoshida Hiroaki, Sakuragi Kenta, Elicitation of Crystallinity in Cyclodextrin Electrospinning, Bulletin of the Chemical Society of Japan, 92, 5, 2019. Crossref
-
Werner Stefanie, Meier Wolfgang, Measurement of evaporation of hydrocarbon droplets by laser absorption spectroscopy, Applied Physics B, 126, 1, 2020. Crossref
-
Pinheiro Abgail P., Vedovoto João Marcelo, da Silveira Neto Aristeu, van Wachem Berend G.M., Ethanol droplet evaporation: Effects of ambient temperature, pressure and fuel vapor concentration, International Journal of Heat and Mass Transfer, 143, 2019. Crossref
-
Dressler L., Sacomano Filho F. L., Sadiki A., Janicka J., Influence of Thickening Factor Treatment on Predictions of Spray Flame Properties Using the ATF Model and Tabulated Chemistry, Flow, Turbulence and Combustion, 106, 2, 2021. Crossref
-
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-
Gallot-Lavallée S., Jones W. P., Marquis A. J., Large Eddy Simulation of an Ethanol Spray Flame with Secondary Droplet Breakup, Flow, Turbulence and Combustion, 107, 3, 2021. Crossref
-
Stempka Jakub, Tyliszczak Artur, Impact of Evaporation Models and Droplet Size on Auto-ignition and Lift-off Height in a Spray Jet Flame, Combustion Science and Technology, 194, 1, 2022. Crossref
-
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-
Pokharel Sagar, Tropina Albina, Shneider Mikhail, Numerical Modeling of Laser Heating and Evaporation of a Single Droplet, Energies, 16, 1, 2022. Crossref