Droplet size, spray structure and droplet velocity mapping in hollow cone sprays using SLIPI-based techniques

V. V. Swami; K. A. Buist; M. W. Baltussen; L. A.H.J. de Graaf; J. A.M. Kuipers

doi:10.1016/j.ces.2024.120635

Droplet size, spray structure and droplet velocity mapping in hollow cone sprays using SLIPI-based techniques

V. V. Swami, K. A. Buist (Corresponding author), M. W. Baltussen, L. A.H.J. de Graaf, J. A.M. Kuipers

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Abstract

The Structured Laser Illumination Planar Imaging (SLIPI) technique received significant attention in recent years due to notable improvements in the measurement of droplet size and the visualization of internal structure in both dilute and dense sprays. However, despite the improvements, the technique remains limited to these microscopic characteristics of the spray, primarily due to the complexity of the optical setup and image acquisition process. In this article, the capabilities of the SLIPI application are exploited, specifically employing the 3p-SLIPI-LIF/Mie (SLSD), and combined application of 1p-SLIPI-LIF & PIV (1p-SLIPI-PIV) for mapping of both Sauter Mean Diameter (SMD) and mean droplet velocity in combination with detailed spray structure analysis. The measurements were carried out in hollow cone sprays operated at the range of injection pressures from 25 to 107 bar. The results obtained using the SLIPI techniques were compared with the Phase Doppler Anemometry (PDA) measurements showing good agreement for both the SMD and mean droplet velocity. The significant improvements in the important microscopic characteristics (droplet size & velocity) and visualization of the internal structure in a wider flow field of hollow cone sprays allowed detailed analysis and understanding of the dispersed phase flow owing to the suppression of diffused light resulting from the multiple scattering effects.

Original language	English
Article number	120635
Number of pages	16
Journal	Chemical Engineering Science
Volume	300
DOIs	https://doi.org/10.1016/j.ces.2024.120635
Publication status	Published - 5 Dec 2024

Bibliographical note

Publisher Copyright:
© 2024 The Author(s)

Funding

This work is part of the \u201CEEMS - Energy Efficient Milky Sprays DR-20-13\u201D project which took place within the framework of the Institute of Sustainable Process Technology (ISPT) and was co-financed by the TKI-Energy & Industry, FrieslandCampina, DSM-firmenich and Danone Nutricia Research. More information can be found on the EEMS website. The authors also would like to acknowledge the financial support for the SLIPI setup from the Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), an NWO Gravitation program, funded by the Ministry of Education, Culture and Science, Netherlands, and the European Union's Horizon 2020 research and innovation program under the Marie Sk\u0142odowska-Curie grant agreement No. 801359. The information about the MCEC can be found on the MCEC website. The authors also would like to acknowledge the financial support for the SLIPI setup from the Netherlands Center for Multiscale Catalytic Energy Conversion (MCEC), an NWO Gravitation program, funded by the Ministry of Education, Culture and Science, Netherlands, and the European Union's Horizon 2020 research and innovation program under the Marie Sk\u0142odowska-Curie grant agreement No. 801359. The information about the MCEC can be found on the MCEC website .

Funders	Funder number
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Institute for Sustainable Process Technology (ISPT)
Ministerie van Onderwijs, Cultuur en Wetenschap
European Union's Horizon 2020 - Research and Innovation Framework Programme
Marie Skłodowska‐Curie	801359

Keywords

Droplet size
Droplet velocity
Hollow cone sprays
PIV
SLIPI
Spray structure

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10.1016/j.ces.2024.120635

pdfFinal published version, 5.5 MBLicence: CC BY

Cite this

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abstract = "The Structured Laser Illumination Planar Imaging (SLIPI) technique received significant attention in recent years due to notable improvements in the measurement of droplet size and the visualization of internal structure in both dilute and dense sprays. However, despite the improvements, the technique remains limited to these microscopic characteristics of the spray, primarily due to the complexity of the optical setup and image acquisition process. In this article, the capabilities of the SLIPI application are exploited, specifically employing the 3p-SLIPI-LIF/Mie (SLSD), and combined application of 1p-SLIPI-LIF & PIV (1p-SLIPI-PIV) for mapping of both Sauter Mean Diameter (SMD) and mean droplet velocity in combination with detailed spray structure analysis. The measurements were carried out in hollow cone sprays operated at the range of injection pressures from 25 to 107 bar. The results obtained using the SLIPI techniques were compared with the Phase Doppler Anemometry (PDA) measurements showing good agreement for both the SMD and mean droplet velocity. The significant improvements in the important microscopic characteristics (droplet size & velocity) and visualization of the internal structure in a wider flow field of hollow cone sprays allowed detailed analysis and understanding of the dispersed phase flow owing to the suppression of diffused light resulting from the multiple scattering effects.",

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AU - Kuipers, J. A.M.

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Droplet size, spray structure and droplet velocity mapping in hollow cone sprays using SLIPI-based techniques

Abstract

Bibliographical note

Funding

Keywords

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Energy Efficient Milky Sprays

Cite this

Droplet size, spray structure and droplet velocity mapping in hollow cone sprays using SLIPI-based techniques

Abstract

Bibliographical note

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Energy Efficient Milky Sprays

Cite this