A model for the combustion of oil/water emulsion droplets

C. K. Law

doi:10.1080/00102209708946810

A model for the combustion of oil/water emulsion droplets

C. K. Law

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

148 Scopus citations

Abstract

The vaporization and combustion characteristics of an oil/water emulsion droplet are investigated by analyzing the multicomponent heat and mass transport processes in the gas phase and the gasification of an immiscible liquid mixture at the gas-liquid interface. Results substantiate and quantify the potential reductions in soot and NO_x formation through water emulsification, and demonstrate that the embedded water micro-droplets can indeed be heated to the limit of superheat such that fragmentation of the emulsion droplet due to the internal pressure build-up can be achieved. It is further shown that the occurrence of this micro-explosive event is enhanced by increasing the ambient pressure, and that at 1 atmosphere the fuel's boiling point has to be at least as high as that of n-hexadecane in order to achieve micro-explosion.

Original language	English (US)
Pages (from-to)	29-38
Number of pages	10
Journal	Combustion science and technology
Volume	17
Issue number	1-2
DOIs	https://doi.org/10.1080/00102209708946810
State	Published - Oct 1 1977
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
General Physics and Astronomy

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10.1080/00102209708946810

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title = "A model for the combustion of oil/water emulsion droplets",

abstract = "The vaporization and combustion characteristics of an oil/water emulsion droplet are investigated by analyzing the multicomponent heat and mass transport processes in the gas phase and the gasification of an immiscible liquid mixture at the gas-liquid interface. Results substantiate and quantify the potential reductions in soot and NOx formation through water emulsification, and demonstrate that the embedded water micro-droplets can indeed be heated to the limit of superheat such that fragmentation of the emulsion droplet due to the internal pressure build-up can be achieved. It is further shown that the occurrence of this micro-explosive event is enhanced by increasing the ambient pressure, and that at 1 atmosphere the fuel's boiling point has to be at least as high as that of n-hexadecane in order to achieve micro-explosion.",

author = "Law, \{C. K.\}",

note = "Funding Information: This research was partially funded by the National Science Foundation under Grant No. NSF-RANN AER 75-09538. 11 is a pleasure to acknowledge the many stimulating discussions with F. L. Dryer of Princeton University. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.",

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AU - Law, C. K.

N1 - Funding Information: This research was partially funded by the National Science Foundation under Grant No. NSF-RANN AER 75-09538. 11 is a pleasure to acknowledge the many stimulating discussions with F. L. Dryer of Princeton University. Copyright: Copyright 2016 Elsevier B.V., All rights reserved.

PY - 1977/10/1

Y1 - 1977/10/1

N2 - The vaporization and combustion characteristics of an oil/water emulsion droplet are investigated by analyzing the multicomponent heat and mass transport processes in the gas phase and the gasification of an immiscible liquid mixture at the gas-liquid interface. Results substantiate and quantify the potential reductions in soot and NOx formation through water emulsification, and demonstrate that the embedded water micro-droplets can indeed be heated to the limit of superheat such that fragmentation of the emulsion droplet due to the internal pressure build-up can be achieved. It is further shown that the occurrence of this micro-explosive event is enhanced by increasing the ambient pressure, and that at 1 atmosphere the fuel's boiling point has to be at least as high as that of n-hexadecane in order to achieve micro-explosion.

AB - The vaporization and combustion characteristics of an oil/water emulsion droplet are investigated by analyzing the multicomponent heat and mass transport processes in the gas phase and the gasification of an immiscible liquid mixture at the gas-liquid interface. Results substantiate and quantify the potential reductions in soot and NOx formation through water emulsification, and demonstrate that the embedded water micro-droplets can indeed be heated to the limit of superheat such that fragmentation of the emulsion droplet due to the internal pressure build-up can be achieved. It is further shown that the occurrence of this micro-explosive event is enhanced by increasing the ambient pressure, and that at 1 atmosphere the fuel's boiling point has to be at least as high as that of n-hexadecane in order to achieve micro-explosion.

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VL - 17

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EP - 38

JO - Combustion science and technology

JF - Combustion science and technology

IS - 1-2

ER -

A model for the combustion of oil/water emulsion droplets

Abstract

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