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US 6,523,991 B1Granted
Method and device for increasing the pressure or enthalpy of a fluid flowing at supersonic speed
OwnerJaber Makladinventor
Life of this patent
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Abstract
A method and apparatus for increasing the pressure or rise of the enthalpy of a fluid flowing at supersonic, includes mixing vapor with liquid, and accelerating this mixture to supersonic speed, whereupon a condensation shock is triggered and wherein additional liquid is introduced into the mixture, flowing at supersonic speed, before triggering of the condensation shock.
Claims13
An apparatus for increasing the pressure or the enthalpy of a fluid flowing at supersonic speed comprising,
- a first nozzle for acceleration of incoming vapor;
- a converging second nozzle positioned downstream of the first nozzle and defining with the first nozzle a first slot therebetween for ingress of a primary liquid and subsequent mixture with the incoming vapor;
- and
- a diffuser positioned downstream of the second nozzle and defining with the second nozzle a second slot therebetween for ingress of a secondary liquid to thereby accelerate a condensation of the vapor in the mixture, wherein the second nozzle and the diffuser define together a parallel flow section which is breached by the second slot to define a flow section portion of the second nozzle and a flow section portion of the diffuser, wherein the second slot has a length extending in flow direction which is between 0.5 and 0.9 times a diameter of the flow section portion of the second nozzle;
- and wherein the first nozzle is a Laval nozzle.
2 more elements
An apparatus for increasing the pressure or the enthalpy of a fluid flowing at supersonic speed comprising,
- a first nozzle for acceleration of incoming vapor;
- a converging second nozzle positioned downstream of the first nozzle and defining with the first nozzle a first slot therebetween for ingress of a primary liquid and subsequent mixture with the incoming vapor;
- and
- a diffuser positioned downstream of the second nozzle and defining with the second nozzle a second slot therebetween for ingress of a secondary liquid to thereby accelerate a condensation of the vapor in the mixture,
- wherein the second nozzle and the diffuser define together a parallel flow section which is breached by the second slot to define a flow section portion of the second nozzle and a flow section portion of the diffuser, wherein the second slot has a length extending in flow direction, which is between 0.5 and 0.9 times a diameter of the flow section portion of the second nozzle;
- and wherein the diffuser has a divergent zone at an opening angle of about 15° to 45°.
3 more elements
Dependencies are inferred from the claim text.