Integrated multi-chamber heat exchanger
A one-piece heat exchanger manufactured using an additive manufacturing process is described. The heat exchanger includes a plurality of channels formed therein. At least some of the plurality of channels may be configured to provide structural support to the heat exchanger to reduce its weight. Different coolant media may be used in a first set and a second set of the plurality of channels to provide different types of cooling in an integrated one-piece heat exchanger structure.
1. A method of cooling a component with a heat exchanger configured to provide multi-mode cooling, the method comprising:
arranging the heat exchanger adjacent to the component, wherein the heat exchanger comprises a first inlet, a first outlet, a second inlet, a second outlet, and a plurality of channels, wherein the plurality of channels includes a first set of channels configured to provide cooling in a first cooling mode using a first coolant medium and a second set of channels configured to provide cooling in a second cooling mode using a second coolant medium having different thermal properties than the first coolant medium;
circulating the first coolant medium through the first set of channels such that the first coolant medium flows between the first inlet and the first outlet; and
circulating the second coolant medium through the second set of channels such that the second coolant medium flows between the second inlet and the second outlet.
2. The method of claim 1 , wherein the method further comprises providing the first coolant medium and the second coolant medium with different respective phase change temperatures.
3. The method of claim 2 , wherein, when in the second cooling mode, the second coolant medium is configured to change phase.
4. The method of claim 3 , wherein the thermal properties of the second coolant medium cause the second coolant medium to change phase prior to a phase change of the first coolant medium when heat is absorbed by the heat exchanger.