Theoretical criteria for homogeneous flash boiling atomization

Yahav Moshkovich; Yeshayahou Levy; Eran Sher

doi:10.1016/j.ces.2019.06.001

Theoretical criteria for homogeneous flash boiling atomization

Yahav Moshkovich, Yeshayahou Levy, Eran Sher

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

When a liquid at a high pressure is driven out through an orifice to below its saturation pressure, flash-boiling of the homogeneous nucleation type may occur, resulting in high quality liquid atomization. This is one of the most effective means of generating a fine and narrow-dispersed spray. The occurrence of flash boiling atomization involves kinetic stability problems that are characterized by two criteria that include a minimal initial liquid temperature and a minimal rate of pressure drop. In this work, we analyze, and suggest analytical expressions for these two criteria.

Original language	English
Pages (from-to)	471-475
Number of pages	5
Journal	Chemical Engineering Science
Volume	206
DOIs	https://doi.org/10.1016/j.ces.2019.06.001
State	Published - 12 Oct 2019
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.ces.2019.06.001

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abstract = "When a liquid at a high pressure is driven out through an orifice to below its saturation pressure, flash-boiling of the homogeneous nucleation type may occur, resulting in high quality liquid atomization. This is one of the most effective means of generating a fine and narrow-dispersed spray. The occurrence of flash boiling atomization involves kinetic stability problems that are characterized by two criteria that include a minimal initial liquid temperature and a minimal rate of pressure drop. In this work, we analyze, and suggest analytical expressions for these two criteria.",

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AU - Sher, Eran

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N2 - When a liquid at a high pressure is driven out through an orifice to below its saturation pressure, flash-boiling of the homogeneous nucleation type may occur, resulting in high quality liquid atomization. This is one of the most effective means of generating a fine and narrow-dispersed spray. The occurrence of flash boiling atomization involves kinetic stability problems that are characterized by two criteria that include a minimal initial liquid temperature and a minimal rate of pressure drop. In this work, we analyze, and suggest analytical expressions for these two criteria.

AB - When a liquid at a high pressure is driven out through an orifice to below its saturation pressure, flash-boiling of the homogeneous nucleation type may occur, resulting in high quality liquid atomization. This is one of the most effective means of generating a fine and narrow-dispersed spray. The occurrence of flash boiling atomization involves kinetic stability problems that are characterized by two criteria that include a minimal initial liquid temperature and a minimal rate of pressure drop. In this work, we analyze, and suggest analytical expressions for these two criteria.

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Theoretical criteria for homogeneous flash boiling atomization

Abstract

ASJC Scopus subject areas

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