Patent ID: 8104745
Filing Date: 2012-01-31
Classification: F04F

Abstract:
1. A method, comprising: feeding a hot liquid flow under pressure into a first nozzle to cause boiling of the hot liquid flow obtaining a volumetric gas-to-liquid ratio of at least about one-third with acceleration of the hot liquid flow to a supersonic velocity in the first nozzle; discharging the hot liquid from the first nozzle into a divergent section of a second nozzle to cause deceleration of the hot liquid to a subsonic velocity with a sudden change of pressure, reduction of the volumetric gas-to-liquid ratio to less than about one-third and heating of the hot liquid flow, converting the flow to a homogenous isotropic liquid with entrained microscopic vapor bubbles; and accelerating the flow thorough a second section of the second nozzle to cause a second boiling of the hot liquid flow obtaining a volumetric gas-to-liquid ratio of at least about one-third with acceleration of the hot liquid flow to a supersonic velocity at an outlet of the second nozzle.