Patent ID: 11946702
Assignee: TERRAPOWER, LLC
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  G  B  Y | IPC F

Claim 0:
1. A heat exchanger for a nuclear reactor, comprising:
a hot flow channel;
a cold flow channel fluidically separated from the hot flow channel;
a mixing control; and
a porous thermally insulative layer disposed between the hot flow channel and the cold flow channel, the porous thermally insulative layer comprising:
an inlet;
an outlet; and
a fluid pathway between the inlet and the outlet; and
wherein the porous thermally insulative layer is configured to flow a control gas formed by a mixture of two or more gasses through the fluid pathway, and wherein the mixing control is configured to change the mixture of the control gas to vary a thermal energy transfer efficiency of the porous thermally insulative layer.