Flash-boiling atomization
WebA steam explosion is an explosion caused by violent boiling or flashing of water or ice into steam, occurring when water or ice is either superheated, rapidly heated by fine hot debris produced within it, or heated by the interaction of molten metals (as in a fuel–coolant interaction, or FCI, of molten nuclear-reactor fuel rods with water in a …
Flash-boiling atomization
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WebExisting studies have pointed out that the flash-boiling induced plume-to-plume interaction is related to the change of spray structure, but the detailed process and mechanism are still unclear. In this work, two customized two-hole injectors were used to thoroughly study the plume interaction by using various optical diagnostic techniques. WebFlash boiling atomization is now a widespread practice for creating fine sprays. The present paper aims to review and analyze our current knowledge on flash atomization processes and applications. First, the fundamental physical processes of flash-boiling atomization, i.e., nucleation and bubble growth.
WebAug 29, 2024 · Flash boiling atomization has the potential to enable superior spray atomization and more homogenous fuel-air mixing. These capabilities have been demonstrated in practical combustors such as... WebMar 15, 2024 · Results indicated that spray flash boiling could effectively enhance liquid dispersion and reduce droplet size. It was also found that the morphology of flash boiling spray was highly related to the superheated degree of the fuel regardless the fuel types. ... Flash boiling can enhance spray atomization without requiring ultra-high injection ...
WebApr 12, 2024 · The flash boiling of superheated ammonia has been also investigated. Indeed, experiments have also shown that this phenomenon promotes a finer and finer atomization and increases the spray cone angle, as the ratio (Rp) of ammonia vapor pressure to chamber pressure (Psat/Pa) increases. WebThis paper presents an atomization model for sprays under flash boiling conditions. The automization is represented by the secondary breakup of a bubble/droplet system, …
WebJul 1, 2024 · Two major types of flash-boiling atomization may be identified by their nature of initiation; initiation by heterogeneous nucleation (bubbles’ nucleation at the liquid/solid interface), and initiation by homogeneous nucleation (bubbles’ nucleation in the liquid bulk). Most applications today employ the first type.
WebApr 8, 2013 · In this study, the flash boiling spray from a multi-hole DI injector was investigated in a constant volume chamber using various laser diagnostic techniques. The macroscopic spray structure, flow field, droplet size and vapor concentration were obtained under typical conditions encountered in the DI engine operations. list of regal entertainment group theatersWebFlash boiling atomization is now a widespread practice for creating fine sprays. The present paper aims to review and analyze our current knowledge on flash atomization … imitas toestemmingsformulierWebThis paper presents an atomization model for sprays under flash boiling conditions. The automization is represented by the secondary breakup of a bubble/droplet system, and the breakup is considered as the result of two competing mechanisms: aerodynamic force … imitandup tony starkWebApr 11, 2024 · To gain an insight into the mechanisms of flash-boiling atomization, heated water was injected from a single-hole orifice into heated air (steady injections, liquid pressure 697 kPa, air pressure ... imitate and performWebMar 8, 2004 · Flash-boiling occurs when a fuel is injected to a combustion chamber where the ambient pressure is lower than the saturation pressure of the fuel. It has been known that flashing is a favorable mechanism for atomizing liquid fuels. imitate awolnation in editingWebApr 11, 2024 · Download Citation Effects of Ultra-High Injection Pressure and Flash Boiling Onset on GDI Sprays Morphology div class="section abstract"> Ultra-high injection ... imitate actions with objects targetsWebFeb 21, 2024 · The following conclusions are made: 1. The two-phase flow patterns of superheat in-nozzle flows are analogous to those in vertical tube boiling. Flow... 2. The … i mit apostroph word