Advances in Liquid Atomization via Flash Boiling—A Global Overview

Tali Bar-Kohany (), Merav Arogeti, Avihai Malka and Eran Sher
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Tali Bar-Kohany: School of Mechanical Engineering, Tel-Aviv University, Tel-Aviv 6997801, Israel
Merav Arogeti: Mechanical Engineering, Sami Shamoon College of Engineering, Beer-Sheva 8410802, Israel
Avihai Malka: Faculty of Aerospace Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel
Eran Sher: Faculty of Aerospace Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel

Energies, 2023, vol. 16, issue 19, 1-18

Abstract: A wide range of recent applications require high-quality sprays that are characterized by extremely small-sized droplets, a narrow droplet size distribution, and a short breakup length. Fuel injection systems in propulsion units, energy storage, medical implementations, printings, and coatings are just a few examples. Flash-boiling atomization is a unique method that was extensively developed during the past two to three decades and has been proven to generate high-quality demanded sprays. In flash-boiling atomization, the liquid is forced to reach a metastable superheated state by either rapid heating or rapid pressure drop, where vapor bubbles nucleate, become fast-growing, and subsequently break down the liquid into a fine spray in a very short time. This present article focuses on flash-boiling atomization via rapid depressurization, which is presently more relevant to energy systems. The field of flash-boiling atomization has seen rapid growth and popularity in the past two decades. The aim of this article is to quantitatively portray the landscape and evolutionary trajectory of flash-boiling atomization research and applications and to detect new research frontiers and emerging trends in the literature on flash-boiling atomization. We briefly review the basic theories of the flash-boiling atomization mechanism present a comprehensive overview of the field, from its birth in approximately the 1970s to the present, and provide a database comprising 386 articles published on the topic of flash-boiling atomization. We visualize the intellectual structure of flash-boiling atomization research and applications and track its evolvement over the past five decades, thus providing a global overview and a comprehensive understanding of the development of flash-boiling atomization research and emerging applications.

Keywords: flash boiling; spray; atomization; fuel injection; cavitation; depressurization (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: 2023
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