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

Hakduck Kim, Changyeon Kim, Heechang Lim and Juhun Song
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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

Energies, 2016, vol. 9, issue 11, 1-11

Abstract: Liquid carbon dioxide-assisted (LCO 2 -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-LCO 2 mixture leaving the injector nozzle under various conditions, including the CO 2 blending ratio, injection pressure, and chamber pressure. In this study, the flash-atomization behavior of a water-LCO 2 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.

Keywords: coal gasification; flash atomization; liquid carbon dioxide (LCO 2 ); water-LCO 2 mixture; solubility (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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