Evaporation and combustion of spray consisting of three-phase methane-hydrate particles

T. Bar-Kohany, Y. Dagan

Research output: Contribution to conferencePaperpeer-review

Abstract

Flame propagation into a dilute spray containing three-phase particles is examined, employing a new mathematical model. The particles are comprised of solid, icy core that encages gas molecules within it. Once the particles are placed in a hot environment, the solid core starts to melt, thus the solid core is then surrounded by a bubbly mixture containing liquid and immiscible gas bubbles. The particles are uniformly distributed, but the flammable gas molecules are becoming premixed only at a particle depletion front. This definition of a depletion front relaxes the abrupt evaporation front that is often used in analyses of laminar flame propagation. Using this approach, we were able to account for the non-linear evaporation characteristics of the three-phase particles, which has a significant effect on the dynamics of the supported flame temperature, location and velocity. The results presented are of methane hydrate (MH) particles.

Original languageEnglish
StatePublished - 2020
Event14th International Conference on Liquid Atomization and Spray Systems, ICLASS 2018 - Chicago, United States
Duration: 22 Jul 201826 Jul 2018

Conference

Conference14th International Conference on Liquid Atomization and Spray Systems, ICLASS 2018
Country/TerritoryUnited States
CityChicago
Period22/07/1826/07/18

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