Understanding the collapse of flash-boiling sprays formed by multi-hole injectors operating at low injection pressures

Łukasz Jan Kapusta

Energy, 2022, vol. 247, issue C

Abstract: Sprays consisting of initially separated plumes, which are generated by multi-hole injectors in strong flash-boiling conditions, may collapse and form a single spray cloud. It has been shown that for high-pressure injection systems (≥5 MPa), such behaviour is dependent on both the superheat and the geometrical configuration of the injector; while the spray collapse in low-pressure systems (≤1 MPa) is not yet understood. To the best of the author's knowledge, this is the first study aimed at filling this information gap. The principal novelty of this work is related to understanding the collapse in low-pressure systems, in terms of the different numbers of nozzles and the difference in the effects from flash boiling between low- and high-pressure sprays.

Keywords: Low-pressure injection; Spray; Flash boiling; Flare flash boiling; Spray collapse; Light-sheet imaging (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:247:y:2022:i:c:s0360544222002912

DOI: 10.1016/j.energy.2022.123388

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