Abstract:
Gas hydrate slurry formation systems are provided. The gas hydrate slurry formation system includes a cavitation chamber configured to receive a fluid and a cavitation device placed within the cavitation chamber. The cavitation device is configured to form a plurality of bubbles within the fluid in the cavitation chamber. The gas hydrate slurry formation system also includes a gas inlet configured to introduce a gas within the cavitation chamber such that the gas is entrained in the plurality of bubbles to form a plurality of gas- entrained bubbles. The plurality of gas-entrained bubbles implode within the cavitation chamber to form a gas hydrate slurry.
Abstract:
A system and method for mixing a gas and a liquid includes, receiving a liquid at a liquid inlet of a convergent nozzle and ejecting the liquid at a predetermined output velocity from a liquid outlet of the convergent nozzle into a mixing chamber, the mixing chamber comprising a cantilevered reed positioned within the mixing chamber. The ejection of the liquid from the liquid outlet causes the cantilevered reed to vibrate at an intrinsic frequency. The vibration of the cantilevered reed induces resonance between the liquid and the cantilevered reed and the resonance results in an ultrasound wave within the liquid. Upon the introduction of a gas into the liquid within the mixing chamber, the mixing of the gas into the liquid is effected by the ultrasound wave generated by the cantilevered reed.
Abstract:
La invención describe un dispositivo ultrasónico destinado principalmente para la sonicación de líquido y medios multifásicos (gas-líquido, sólido-líquido) a través de la vibración de flexión de palas sintonizadas. El sistema ultrasónico comprende una fuente de campo eléctrico alterno (2'), un transductor electroacústico (1') conectado a la fuente de campo eléctrico alterno, un reforzador (3') conectado al transductor electroacústico con una sección transversal distal al transductor electroacústico menor que una sección transversal proximal al transductor electroacústico, y al menos una pala sintonizada (5) acoplada al reforzador, acoplando la al menos una pala vibraciones de flexión al líquido o medios multifásicos. El sistema permite el tratamiento de mayores volúmenes de medios fluidos en comparación con los dispositivos ultrasónicos resonantes longitudinalmente convencionales caracterizados por pequeñas superficies radiantes. El movimiento de flexión de las palas sintonizadas (5) puede lograrse a través del uso de un transductor electroacústico (1') que se hace funcionar en un modo de vibración de torsión, o mediante un subconjunto excitado en un modo compuesto de torsión-longitudinal.
Abstract:
Methods and systems for acoustically treating material using a continuous process in which material may be caused to flow in a continuous or intermittent fashion into/out of an acoustic treatment chamber where the material is exposed to focused acoustic energy. The methods and systems may be arranged to permit continuous processing for extended periods while an acoustic energy source operates at a relatively high power output. Treatment chambers may include features such as an acoustic window and/or a chamber wall which may comprise an acoustically reflective material or a gas/wall interface that serves to reflect acoustic energy to form one or more secondary focal zones. Treatment system configurations relating to arrangements of a treatment chamber relative to an acoustic source and coupling medium, material flow paths, and others are provided.
Abstract:
An ultrasonic transducer assembly is provided comprising an ultrasonic transducer, an ultrasonic booster, an ultrasonic probe, and a booster cooling unit. The ultrasonic booster is connected to the ultrasonic transducer to amplify acoustic energy generated by the ultrasonic transducer and transfer the amplified acoustic energy to the ultrasonic probe. A seated end of the ultrasonic probe is positioned in a probe seat of the ultrasonic booster. The booster cooling unit is positioned to regulate the temperature of the probe seat of the ultrasonic booster such that the assembly supports a temperature dependent press-fit engagement of the seated end of the ultrasonic probe and the probe seat of the ultrasonic booster. The temperature dependent press-fit engagement is such that the seated end of the ultrasonic probe can be reversibly moved in and out of the probe seat at an elevated temperature ???t and is fixed in the probe seat at room temperature TCOLD. A method of applying ultrasonic acoustic energy to a glass melt by monitoring a glass melt temperature TY and transferring ultrasonic acoustic energy from an ultrasonic transducer to the glass melt at a controller power Pc and a controller frequency Vc through an ultrasonic probe positioned in the glass melt is provided. Systems for applying ultrasonic acoustic energy to glass melts are also provided.
Abstract:
A method for dispersing a sample of entities which are prone to agglomeratio comprises the steps of (i) sonicating said entities to disperse them temporarily, and (ii) attaching polar moieties to said entities in order to prolong the dispersal. Apparatus for sonicating a sample comprises a container for the sample and a source of sonic waves, wherein the dimensions of the container are selected to maximise the efficiency of the sonication.
Abstract:
The present invention relates to methods for transferring liquid into a solid comprising applying highly propagating ultrasonic energy to a mixture comprising a solid and a liquid wherein the highly propagating ultrasonic energy is uniformly distributed throughout said solid thereby transferring the liquid into said solid.