Spray Formation of a Liquid Carbon Dioxide-Water Mixture at Elevated Pressures

Hakduck Kim; Changyeon Kim; Heechang Lim; Juhun Song

doi:10.3390/en9110948

Energies (Nov 2016)

Spray Formation of a Liquid Carbon Dioxide-Water Mixture at Elevated Pressures

Hakduck Kim,
Changyeon Kim,
Heechang Lim,
Juhun Song

Affiliations

Hakduck Kim: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea
Changyeon Kim: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea
Heechang Lim: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea
Juhun Song: School of Mechanical Engineering, Pusan National University, Busan 46241, Korea

DOI: https://doi.org/10.3390/en9110948
Journal volume & issue: Vol. 9, no. 11
p. 948

Abstract

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Liquid carbon dioxide-assisted (LCO2-assisted) atomization can be used in coal-water slurry gasification plants to prevent the agglomeration of coal particles. It is essential to understand the atomization behavior of the water-LCO2 mixture leaving the injector nozzle under various conditions, including the CO2 blending ratio, injection pressure, and chamber pressure. In this study, the flash-atomization behavior of a water-LCO2 mixture was evaluated with regard to the spray angle and penetration length during a throttling process. The injector nozzle was mounted downstream of a high-pressure spray-visualization system. Based on the results, the optimal condition for the effective transport of coal particles was proposed.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

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