Abstract: A heat exchanger is disclosed. The heat exchanger includes a hollow tube extending from a tube inlet to a tube outlet. The hollow tube includes a wall that includes a core of a first aluminum alloy, and a cladding over the core of a second aluminum alloy. The second aluminum alloy is less noble than the first aluminum alloy and includes an alloying element selected from tin, indium, or gallium, or combinations thereof. A first fluid flow path is disposed along an inner surface of the wall from the tube inlet to the tube outlet, and a second fluid flow path is disposed across an outer surface of the wall.

Abstract: A heat transfer system is disclosed that includes a heat exchanger comprising an inlet, an outlet, and a flow path through the heat exchanger between the inlet and the outlet. The system also includes a fluid circulation loop external to the heat exchanger connecting the outlet to the inlet. A phase change composition is disposed in the system flowing through the fluid circulation loop and the flow path through the heat exchanger. This the phase change composition includes a first PCM that is a plant or animal or paraffinic oil having a first melting point and a second PCM that is a plant or animal or paraffinic oil having a second melting point lower than the first melting point.

Abstract: A transport container lid (10) is provided which includes a power source (24) providing electrical power to the container lid. An environmental control unit (20) electrically powered by the power source (24) and producing conditioned air is provided, wherein the environmental control unit (20) contains a fan (12) to distribute the conditioned air. A controller (28) in operative communication with the power source (24) and the environmental control unit (20) is provided, wherein the controller (28) adjusts the operation of the environmental control unit (20) based upon a command input.

Abstract: A heat transfer system is disclosed that includes a heat exchanger comprising an inlet, an outlet, and a flow path through the heat exchanger between the inlet and the outlet. The system also includes a fluid circulation loop external to the heat exchanger connecting the outlet to the inlet. A phase change composition is disposed in the system flowing through the fluid circulation loop and the flow path through the heat exchanger. This the phase change composition includes a first PCM that is a plant or animal or paraffinic oil having a first melting point and a second PCM that is a plant or animal or paraffinic oil having a second melting point lower than the first melting point.

Abstract: A method of measuring concentrations of gas mixtures is disclosed in which an ionic liquid and/or low vapor-pressure organic solvent is exposed to a gas mixture being tested to form a solution of the gas components in the liquid. The vapor pressure of the solution is then measured at one or more other temperatures and compared to predicted vapor pressures based on known individual vapor pressure profiles of the gas components in the liquid in order to determine the actual proportions of the components in the gas sample.

Abstract: A method for coating an aluminum alloy heat exchanger includes subjecting at least one surface of the heat exchanger to a pre-treatment process including cleaning; conversion coating the at least one surface of the heat exchanger with a trivalent chromium compound; and subjecting the at least one conversion coated surface to an electro-coating in an aqueous solution containing an organic corrosion inhibitor.

Abstract: A thermal energy storage assembly includes a first pipe configured to have a heat transfer fluid flow through a bore of the first pipe and a second pipe surrounding the first pipe. A phase change material fills the space between the first pipe and the second pipe, the phase change material storing cold thermal energy from the heat transfer fluid.

Abstract: A heat transfer system is disclosed that includes a heat transfer fluid circulation loop, and also a heat exchanger that includes an aluminum alloy exterior surface having thereon a top surface coat derived from a composition comprising a trivalent chromium salt and an alkali metal hexafluorozirconate.

Abstract: A refrigerated cargo container includes a refrigeration unit and a cargo container. The refrigeration unit includes a support frame formed from at least one layer of composite material and at least one layer of insulative foam material. The support frame is supportive of one or more components of the refrigeration unit and insulative of a cargo portion of the cargo container.

Abstract: A refrigerant system includes a vapor/compression refrigerant circulation loop (100) comprising a compressor (110), a refrigerant side of a heat exchanger condenser (120), an expansion device (130), and a refrigerant side of a heat exchanger evaporator (140), connected by conduit (143,115,125,135) in a closed circulation loop having refrigerant disposed therein. The refrigerant system also includes a flow path(145) for a conditioned fluid across a conditioned fluid side of the heat exchanger evaporator and/or a conditioned fluid side of the heat exchanger condenser. During operation, this flow path can provide thermal communication between the refrigerant and the conditioned fluid. The refrigerant system also includes a phase change material (PCM), a thermal flow path between the fluid and the PCM, which provides thermal communication between the fluid and the PCM, and a thermal flow path between the refrigerant and the PCM, which provides thermal communication between the refrigerant and the PCM.

Abstract: A method of measuring concentrations of gas mixtures is disclosed in which an ionic liquid and/or low vapor-pressure organic solvent is exposed to a gas mixture being tested to form a solution of the gas components in the liquid. The vapor pressure of the solution is then measured at one or more other temperatures and compared to predicted vapor pressures based on known individual vapor pressure profiles of the gas components in the liquid in order to determine the actual proportions of the components in the gas sample.

Abstract: A heat exchanger includes a tube including a first aluminum alloy; and a plurality of fins in thermally conductive contact with the exterior of said tube, the fins including a second aluminum alloy comprising a base alloy selected from the group consisting of AA1100, AA8006, and AA8011 and zinc or magnesium in an amount sufficient to provide the second aluminum alloy with an electrochemical solution potential of at least 10 mV more negative than the electrochemical solution potential of the first aluminum alloy, as determined according to ASTM G69-97.

Abstract: A method for coating an aluminum alloy heat exchanger includes subjecting at least one surface of the heat exchanger to a pre-treatment process including cleaning; conversion coating the at least one surface of the heat exchanger with a trivalent chromium compound; and subjecting the at least one conversion coated surface to an electro-coating in an aqueous solution containing an organic corrosion inhibitor.

Abstract: A micro channel heat exchanger alloy system is provided and includes first and second manifolds, including a 3000 series aluminum, each of the first and second manifolds being formed to define a respective interior therein, a tube, including at least one of 31108 and 31104 alloy material, extending from the first to the second manifold and being formed to define multiple channels by which the respective interiors of the first and the second manifolds fluidly communicate, a fin structure, including at least 3003 alloy material, disposed in thermal communication with the tube, the fin structure being cladded with a silicon rich layer, including a 4000 series aluminum and a flux material applied to surfaces of the first and second manifolds, the tube and the fin structure.