Abstract:
A conveyor belt includes a conveying surface comprising a plurality of rod-shaped members each of which is constructed and arranged for vertical displacement with respect to each other for providing a space between adjacent ones of the plurality of rod-like members. The conveyor belt may also include a side link disposed at opposed ends of each one of the plurality of rod-shaped members, each one of the side links having at least one central aperture therein for receiving a corresponding end of the rod-shaped member for vertical displacement therein.
Abstract:
A refrigeration process including supplying chilled CO2 liquid into a refrigeration chamber, flashing the chilled CO2 liquid into gaseous CO2 and solid CO2 for providing a cooling elect within the refrigeration chamber, and exhausting CO2 gas from the refrigeration chamber, wherein fresh CO2 liquid passes through a tube-side of a shell-and-tube heat exchanger prior to entering the refrigeration chamber as chilled CO2 liquid and the exhaust CO2 gas passes through a shell-side of the shell-and-tube heat exchanger after exiting the refrigeration chamber, thereby pre-cooling the liquid CO2 prior to entering the refrigeration chamber.
Abstract:
A heat transfer system for refrigeration and/or heating of products includes a housing having an internal chamber, a baffle, a spiral pathway around the baffle, a gas flow pathway and a blower to circulate gas along the gas flow pathway. The baffle separates the chamber into upper and lower portions. The spiral pathway includes an upper spiral pathway within the upper portion, and a lower spiral pathway within the lower portion. The gas flow pathway includes an upper gas flow pathway across the upper spiral pathway and a lower gas flow pathway across the lower spiral pathway in which gas flow in the upper and lower gas flow pathways defines a circulation loop. The width of the upper gas flow pathway and upper spiral pathway are similar, and the width of the lower gas flow pathway and lower spiral pathway are similar.
Abstract:
A heat exchanger includes a housing disposed in a first atmosphere and having an upstream end, a downstream end and a chamber within the housing; a metallic block disposed in the chamber and having a passageway therethrough and through which a cryogen can flow; and a heat pipe assembly in contact with the metallic block and extending to a second atmosphere which is separate from the first atmosphere for providing heat transfer at the second atmosphere.
Abstract:
A freezer includes a housing having a sidewall defining a chamber, and an inlet and an outlet in communication with the chamber; a pair of baffle assemblies spaced apart and disposed in the chamber, a first one of the pair movable 90° degrees out of phase from a second one of the pair; a plate disposed in the chamber and extending between the first and second baffle assemblies for dividing a portion of the chamber into an intake zone and an outflow zone; a fan disposed in the chamber between the first and second baffle assemblies and in communication with the intake and outflow zones for providing a gas flow from the intake zone to the outflow zone; and a delivery apparatus in communication with the chamber for delivering a chilling substance to the chamber for reducing a temperature of a product. A method is also provided.
Abstract:
A method for operating a vehicle that provides refrigeration and is powered by an engine for burning liquefied natural gas. The vehicle contains on-board storage tanks for liquefied natural gas and liquid nitrogen. These two tanks are in thermal communication with each other and natural gas from the liquefied natural gas storage tank will periodically contact the liquid nitrogen and return as liquefied natural gas.
Abstract:
A heat transfer apparatus for a product includes a housing having an internal chamber; a solid conveyor belt disposed within the internal chamber and arranged in a spiral configuration having upper and lower portions, the spiral configuration including an upper pathway within the upper portion, a lower pathway within the lower portion; a gas flow having an upper gas flow across the upper pathway, a lower gas flow across the lower pathway and in counter-flow to the upper gas flow, wherein the upper gas flow and the lower gas flow define a circulation loop; and a gas circulation device to induce the upper and lower gas flows along the circulation loop.
Abstract:
A conveyor belt includes a conveying surface comprising a plurality of rod-shaped members each of which is constructed and arranged for vertical displacement with respect to each other for providing a space between adjacent ones of the plurality of rod-like members. The conveyor belt may also include a side link disposed at opposed ends of each one of the plurality of rod-shaped members, each one of the side links having at least one central aperture therein for receiving a corresponding end of the rod-shaped member for vertical displacement therein.
Abstract:
A freezer for reducing the temperature of product is provided which includes a controller in communication with and for receiving signals from the cryogen delivery assembly, the cryogen flow assembly, the conveyor, the product measurement assembly and the first heat sensor, the controller responsive to the signals for controlling the cryogen flow assembly to provide an amount of the cryogen to the cryogen delivery assembly for application to the product.
Abstract:
A self-chilling container, including an outer wall and an inner wall defining at least one adsorption chamber in a space provided between the outer wall and the inner wall, the adsorption chamber adapted to contain adsorbent material in heat transfer contact with at least the inner wall; the inner wall further defining at least one cooling chamber adjacent to the adsorption chamber, the cooling chamber being in heat transfer contact with the inner wall; at least one inlet disposed at the outer wall for introduction of a gas subliming solid material into the adsorption chamber for adsorption of sublimed gas onto the adsorbent material; and a valve in communication with the adsorption chamber for controlled release of the gas from the adsorption chamber.