Liquid-phase diffusional resistance in multicomponent droplet gasification

A. L. Randolph; A. Makino; C. K. Law

doi:10.1016/S0082-0784(88)80290-X

Liquid-phase diffusional resistance in multicomponent droplet gasification

A. L. Randolph, A. Makino, C. K. Law

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

46 Scopus citations

Abstract

By using microphotography and sampling, the time-resolved droplet size and composition have been determined for freely-falling two-component droplets undergoing either vaporization or combustion in a hot environment. Results demonstrate that liquid-phase diffusional resistance is not as effective as previously suggested, and that this effectiveness further diminishes with increasing volatility differential of the mixture and decreasing gasification rate of the droplet. Thus the gasification mechanism of multicomponent fuel droplets is intermediate of those of batch distillation and diffusion-limited steady state. Theoretical calculations agree well with the experimental results.

Original language	English (US)
Pages (from-to)	601-608
Number of pages	8
Journal	Symposium (International) on Combustion
Volume	21
Issue number	1
DOIs	https://doi.org/10.1016/S0082-0784(88)80290-X
State	Published - 1988
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

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10.1016/S0082-0784(88)80290-X

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title = "Liquid-phase diffusional resistance in multicomponent droplet gasification",

abstract = "By using microphotography and sampling, the time-resolved droplet size and composition have been determined for freely-falling two-component droplets undergoing either vaporization or combustion in a hot environment. Results demonstrate that liquid-phase diffusional resistance is not as effective as previously suggested, and that this effectiveness further diminishes with increasing volatility differential of the mixture and decreasing gasification rate of the droplet. Thus the gasification mechanism of multicomponent fuel droplets is intermediate of those of batch distillation and diffusion-limited steady state. Theoretical calculations agree well with the experimental results.",

author = "Randolph, {A. L.} and A. Makino and Law, {C. K.}",

note = "Funding Information: ALR, AM, and CKL were respectively supported by the Army Research Office under Grant No. DAAG29-85-K-0010, the Office of Naval Research under Contract No. N00014-83-K-0207, and the National Science Foundation under Grant No. MEA-8415080.",

year = "1988",

doi = "10.1016/S0082-0784(88)80290-X",

language = "English (US)",

volume = "21",

pages = "601--608",

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issn = "0082-0784",

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TY - JOUR

T1 - Liquid-phase diffusional resistance in multicomponent droplet gasification

AU - Randolph, A. L.

AU - Makino, A.

AU - Law, C. K.

N1 - Funding Information: ALR, AM, and CKL were respectively supported by the Army Research Office under Grant No. DAAG29-85-K-0010, the Office of Naval Research under Contract No. N00014-83-K-0207, and the National Science Foundation under Grant No. MEA-8415080.

PY - 1988

Y1 - 1988

N2 - By using microphotography and sampling, the time-resolved droplet size and composition have been determined for freely-falling two-component droplets undergoing either vaporization or combustion in a hot environment. Results demonstrate that liquid-phase diffusional resistance is not as effective as previously suggested, and that this effectiveness further diminishes with increasing volatility differential of the mixture and decreasing gasification rate of the droplet. Thus the gasification mechanism of multicomponent fuel droplets is intermediate of those of batch distillation and diffusion-limited steady state. Theoretical calculations agree well with the experimental results.

AB - By using microphotography and sampling, the time-resolved droplet size and composition have been determined for freely-falling two-component droplets undergoing either vaporization or combustion in a hot environment. Results demonstrate that liquid-phase diffusional resistance is not as effective as previously suggested, and that this effectiveness further diminishes with increasing volatility differential of the mixture and decreasing gasification rate of the droplet. Thus the gasification mechanism of multicomponent fuel droplets is intermediate of those of batch distillation and diffusion-limited steady state. Theoretical calculations agree well with the experimental results.

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ER -

Liquid-phase diffusional resistance in multicomponent droplet gasification

Abstract

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