Thursday, 1 September 2016

Lie Group Method for Studying the Heat Generation Effect

Thermophoresis is a phenomenon which causes small particles to be driven away from a hot surface and towards a cold one. Small particles, such as dust, when suspended in a gas with a temperature gradient, experience a force in the direction opposite to the temperature gradient.

Heat Generation Effect
The velocity acquired by the particles is called the thermophoretic velocity and the force experienced by the suspended particles due to the temperature gradient is known as the thermophoretic force. Themagnitudes of the thermophoretic force and velocity are proportional to thetemperature gradient, thermal conductivity of aerosol particles and the carrier gas, thermophoretic coefficient and the heat capacity of the gas. This phenomenon has many practical applications in removing small particles from gas streams, in determining exhaust gas particle trajectories from combustion devices, prevention of fouling and corrosion in heat exchangers and turbines, semiconductor manufacture and ceramic powder production.

No comments:

Post a Comment