Abstract: Aspects of the invention include a nozzle assembly having a housing configured for attachment to the wall of the vessel. The housing has a proximal end portion and a distal end portion spaced from the proximal end portion along a length of the housing. The housing defines a passageway extending from the proximal end portion to the distal end portion, which is delineated by an inner surface of the housing. The nozzle assembly further includes a nozzle that has a base portion adapted for coupling to the housing, a shaft portion that extends from the base portion, and a tip portion coupled to the shaft portion of the nozzle. The tip portion defines a plurality of orifices. The nozzle also has an outer surface extending along a length of the nozzle that is spaced from the inner surface of the housing to create a gap when the nozzle is coupled to the housing.

Abstract: Liquid cryogen from a tank having a head space pressure P1 is vaporized with a pressure building vaporizer to gaseous cryogen and the pressure of the gaseous cryogen is built to a pressure P2. The pressurized gaseous cryogen at pressure P2 is expanded across an expander to decrease its pressure and fed to a point of use at an installation including the vaporizer at a pressure P3. P2?2×P3. Energy from the expanded gas may be recovered in the form of mechanical energy, electrical energy.

Abstract: A self-retracting dry ice container enclosing solid carbon dioxide and retracting as the solid carbon dioxide sublimates is provided

Abstract: Aspects of the invention include a nozzle assembly having a housing configured for attachment to the wall of the vessel. The housing has a proximal end portion and a distal end portion spaced from the proximal end portion along a length of the housing. The housing defines a passageway extending from the proximal end portion to the distal end portion, which is delineated by an inner surface of the housing. The nozzle assembly further includes a nozzle that has a base portion adapted for coupling to the housing, a shaft portion that extends from the base portion, and a tip portion coupled to the shaft portion of the nozzle. The tip portion defines a plurality of orifices. The nozzle also has an outer surface extending along a length of the nozzle that is spaced from the inner surface of the housing to create a gap when the nozzle is coupled to the housing.