Abstract
Using high-speed video recording tools (up to 105 frames per second) and «TEMA Automotive» and «Phantom Camera Control» software packages the experimental features of explosive disintegration, boiling and evaporation of water droplets with comparably sized solid inclusions heated in high-temperature (more than 650 K) gaseous region were determined. The necessary and sufficient conditions of explosive vapor formation achievement with the next heterogeneous water droplet disintegration were found.
Highlights
The technologies of use of the heterogeneous and multiphase flows in power engineering, chemical and petrochemical applications are applied enough in recent years [1,2,3,4]
Uninvestigated heat exchange features of different phases in a flow determine one of the main unsolved fully problems – mechanism determination of liquid droplet phase changes with solid inclusions in gaseous region taking into account the optical and thermal-physical particle material properties
Results of experiments and discussion It was found that the intensive boiling and vapor formation of a heterogeneous liquid droplet heated in a high-temperature gaseous region are carried out much faster when a heat flux is supplied to an inclusion
Summary
The technologies of use of the heterogeneous and multiphase flows in power engineering, chemical and petrochemical applications are applied enough in recent years [1,2,3,4]. These technologies primarily mean the presence of solid inclusions (solid phase) in a flow. Uninvestigated heat exchange features of different phases in a flow determine one of the main unsolved fully problems – mechanism determination of liquid droplet phase changes with solid inclusions in gaseous (especially high-temperature) region taking into account the optical and thermal-physical particle material properties
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