Experimental study of breakup and atomization characteristics of liquid carbon dioxide jet under high-pressure environment

Hu, Jiaming; Hu, Chunbo; Zhu, Xiaofei; Li, Yue; Che, Yanhong; Wei, Ronggang; Li, Chao

doi:10.1016/j.actaastro.2023.12.057

Acta Astronautica

2024

DOI: 10.1016/j.actaastro.2023.12.057

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Experimental study of breakup and atomization characteristics of liquid carbon dioxide jet under high-pressure environment

Jiaming Hu,

Chunbo Hu,

Xiaofei Zhu

et al.

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2024

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Cited by 3 publications

References 31 publications

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Study on the jet breakup-propagation evolution characteristics of wet compression process in a single screw steam compressor

Wang,

Dai,

et al. 2024

Applied Thermal Engineering

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Study on the jet breakup-propagation evolution characteristics of wet compression process in a single screw steam compressor

Wang,

Dai,

et al. 2024

Applied Thermal Engineering

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Breakup characteristics of a pulse jet issuing into a compressed gas environment under different injection conditions

Xie,

Lei,

Deng

et al. 2024

Physics of Fluids

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The dynamics of jet breakup undergo significant alteration due to the influence of a compressed gas environment. In the first injection stage of an air-assisted fuel injector (AAFI), fuel is introduced into such an environment. Therefore, studying the influence of injection conditions on the jet breakup characteristics has significant importance for AAFI spray. This study utilized a high-speed camera to record the jet breakup images in a compressed gas environment. Subsequently, these images were analyzed using MATLAB to get the spray penetration distance and fuel projection area (FPA). The research findings indicate that both fuel injection pressure (FIP) and fuel–gas pressure drop (ΔP) exert influence on jet breakup characteristics, with ΔP exhibiting more significant influence. Maintaining ΔP at 1 bar, when FIP increased from 4 to 7 bar, gas Weber number (Weg) increased by 87%. While maintaining gas pressure at 5 bar, as ΔP increased from 1 to 3 bar, Weg escalated by 194%. Additionally, jet breakup length under different injection conditions followed a pattern as summarized by Bonhoeffer et al. [“Impact of formulation properties and process parameters on the dispensing and depositioning of drug nanosuspensions using micro-valve technology,” J. Pharm. Sci. 106(4), 1102–1110 (2017)]. The jet surface disturbance was enhanced by the increase in both FIP and ΔP. The detachment of the droplets from main jet stream induced by ΔP resulted in an increase in jet flow width. Furthermore, the effect of ΔP on FPA was more significant compared to FIP. As ΔP rose from 1 to 3 bar, the time-averaged FPA and area-to-mass ratio (Raq) increased 245% and 207%, respectively.

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Research progress of jet washing technology and its exploratory decoking application in delayed coking process

Lv,

Wang,

Yan

et al. 2024

Reviews in Chemical Engineering

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Considering the distinctive features of the delayed coking process and taking into account various particulate matter control technologies, the feasibility of using jet washing technology to remove coke powder from process gas is explored. The performance of scrubbers is heavily reliant on the quality of atomization, which in turn is influenced by liquid jet breakup. Due to the multiple interactions of various instabilities involved in jet breakup, as well as the short duration and small scale of this process, it is challenging to observe experimentally. Therefore, the specific fluid dynamics processes are not yet clear. In recent years, extensive research has been conducted on research methods, jet breakup modes, jet breakup characteristics, and jet breakup mechanisms. However, there is a lack of comprehensive review work summarizing these research advancements. This article aims to provide a comprehensive overview to facilitate jet scrubber designers’ systematic understanding of progress in jet breakup research. Furthermore, it discusses the significance of studying confined spaces for jet breakup with the objective of providing valuable insights for designing and optimizing delayed coker.

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Experimental study of breakup and atomization characteristics of liquid carbon dioxide jet under high-pressure environment

Cited by 3 publications

References 31 publications

Study on the jet breakup-propagation evolution characteristics of wet compression process in a single screw steam compressor

Study on the jet breakup-propagation evolution characteristics of wet compression process in a single screw steam compressor

Breakup characteristics of a pulse jet issuing into a compressed gas environment under different injection conditions

Research progress of jet washing technology and its exploratory decoking application in delayed coking process

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