Analysis of Gas-Steam Bubbles Size Influence on the Hydrate Formation Process

A mathematical model that takes into consideration the inertial and thermodynamic components of bubbles oscillations, heat exchange processes in liquid, heat transfer on the boundary bubbles is proposed. Research of the gas-steam bubbles dynamic characteristics in various sizes has been carried out. After the performance of calculations graphs of the bubbles size change, its temperature, movement rate, steam environment pressure inside the bubble in time were built. It is established that each bubble size has its own oscillation frequency. The rate of hydrate formation has been calculated and it was established that it had maximum value during the heating of gas medium inside the bubbles. Gradually, in a viscous medium, the oscillations are damped and the hydrate formation process is maintained due to the removal of heat to the outer layers of the liquid. Based on the thermodynamic parameters of the contact surface of the liquid and gaseous phases, the amount of gas hydrate formed is determined. The results of the research can be used to optimize various technological processes associated with boiling, swelling of materials, formation of gas hydrates and cavitation in a liquid.