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AssigneeCarrier Corporation
InventorsMary Teresa Lombardo, Ruoshuang Huang, Jefferi J. Covington, Matthew Patterson, Anais Espinal, Mark R. Jaworowski, Aaron T. Nardi, Catherine Thibaud, Tobias H. Sienel, Luis Felipe Avila
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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.
A heat transfer system comprising a heat transfer fluid circulation loop in operative thermal communication with an indoor conditioned air space and an outdoor air space, including a heat exchanger that includes a wall separating an air flow path on a first side of the wall in operative fluid communication the indoor conditioned air space or the outdoor air space, and heat transfer fluid flow path on a second side of the wall in operative fluid communication with the heat transfer fluid circulation loop, wherein the wall includes a core comprising a first aluminum alloy, and a cladding over the core on the first side of the wall comprising a second aluminum alloy, wherein the second aluminum alloy is less noble than the first aluminum alloy and comprises an alloying element selected from tin, indium, or gallium, or combinations thereof, and wherein the second aluminum alloy has a composition consisting of 4.0-6.0 wt. % zinc or magnesium, 0.01-0.05 wt. % of one or more alloying elements selected from tin, indium, gallium, or combinations thereof, 0-2.5 wt. % other alloying elements, and balance aluminum.
A heat transfer system comprising a heat transfer fluid circulation loop in operative thermal communication with an indoor conditioned air space and an outdoor air space, including a heat exchanger that includes a wall separating an air flow path on a first side of the wall in operative fluid communication the indoor conditioned air space or the outdoor air space, and heat transfer fluid flow path on a second side of the wall in operative fluid communication with the heat transfer fluid circulation loop, wherein the wall includes a core comprising a first aluminum alloy, and a cladding over the core on the first side of the wall comprising a second aluminum alloy, wherein the second aluminum alloy is less noble than the first aluminum alloy and comprises gallium.
A heat transfer system comprising a heat transfer fluid circulation loop in operative thermal communication with an indoor conditioned air space and an outdoor air space, including a heat exchanger that includes a wall separating an air flow path on a first side of the wall in operative fluid communication the indoor conditioned air space or the outdoor air space, and heat transfer fluid flow path on a second side of the wall in operative fluid communication with the heat transfer fluid circulation loop, wherein the wall includes a core comprising a first aluminum alloy, and a cladding over the core on the first side of the wall comprising a second aluminum alloy, wherein the second aluminum alloy is less noble than the first aluminum alloy and comprises an alloying element selected from tin, indium, or gallium, or combinations thereof and comprises 4.0-10 wt. % zinc, 1.0-4.9 wt. % magnesium, or a combination thereof, based on a total weight of the second aluminum alloy.
Dependencies are inferred from the claim text.