Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures

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 desig...

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Main Authors:	Saharin, Sanisah, Lefort, Benoite, Morin, Celine, Chauveau, Christian, Le Moyne, Luis, Kafafy, Raed
Format:	Article
Language:	English
Published:	Begell House Inc. 2012
Subjects:	TP315 Fuel
Online Access:	http://irep.iium.edu.my/28969/ http://irep.iium.edu.my/28969/ http://irep.iium.edu.my/28969/ http://irep.iium.edu.my/28969/1/AAS2203-5061.pdf

id	iium-28969
recordtype	eprints
spelling	iium-289692013-03-13T04:32:23Z http://irep.iium.edu.my/28969/ Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures Saharin, Sanisah Lefort, Benoite Morin, Celine Chauveau, Christian Le Moyne, Luis Kafafy, Raed TP315 Fuel 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 d 2 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 d 2 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 d 2(t) curves of both 1-propanol and ethanol droplets confirm this phenomenon Begell House Inc. 2012 Article PeerReviewed application/pdf en http://irep.iium.edu.my/28969/1/AAS2203-5061.pdf Saharin, Sanisah and Lefort, Benoite and Morin, Celine and Chauveau, Christian and Le Moyne, Luis and Kafafy, Raed (2012) Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures. Atomization and Sprays, 22 (3). pp. 207-226. ISSN 1044-5110 http://www.dl.begellhouse.com/journals/6a7c7e10642258cc,61e24b9170ac454d,7bc31ff63f568aec.html 10.1615/AtomizSpr.2012005061
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP315 Fuel
spellingShingle	TP315 Fuel Saharin, Sanisah Lefort, Benoite Morin, Celine Chauveau, Christian Le Moyne, Luis Kafafy, Raed Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures
description	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 d 2 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 d 2 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 d 2(t) curves of both 1-propanol and ethanol droplets confirm this phenomenon
format	Article
author	Saharin, Sanisah Lefort, Benoite Morin, Celine Chauveau, Christian Le Moyne, Luis Kafafy, Raed
author_facet	Saharin, Sanisah Lefort, Benoite Morin, Celine Chauveau, Christian Le Moyne, Luis Kafafy, Raed
author_sort	Saharin, Sanisah
title	Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures
title_short	Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures
title_full	Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures
title_fullStr	Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures
title_full_unstemmed	Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures
title_sort	vaporization characteristics of ethanol and 1-propanol droplets at high temperatures
publisher	Begell House Inc.
publishDate	2012
url	http://irep.iium.edu.my/28969/ http://irep.iium.edu.my/28969/ http://irep.iium.edu.my/28969/ http://irep.iium.edu.my/28969/1/AAS2203-5061.pdf
first_indexed	2023-09-18T20:42:32Z
last_indexed	2023-09-18T20:42:32Z
_version_	1777409461126692864

Vaporization characteristics of ethanol and 1-propanol droplets at high temperatures

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