Patent ID: 11892202
Assignee: BOOZ ALLEN HAMILTON INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 21:
22. A thermal management method, comprising:
transporting a refrigerant fluid from a receiver to an inlet of a flash tank that has a vapor-side outlet and liquid-side outlet such that a liquid phase of the refrigerant fluid moves to a bottom of the flash tank and outputs from the liquid-side outlet;
forming a solid-vapor state from the liquid phase by expanding the liquid phase from the liquid-side outlet with an expansion valve to a first pressure that is less than a triple point pressure of the refrigerant fluid to form a solid-vapor mixture of the refrigerant fluid;
extracting heat from a heat load in at least one of thermal conductive or convective contact or in proximity to an evaporator that receives the solid-vapor mixture of the refrigerant fluid and sublimates the solid state of the solid-vapor mixture of the refrigerant fluid directly into a vapor phase of the refrigerant fluid; and
discharging, from an exhaust line fluidly coupled to an outlet of the evaporator, the vapor phase to an ambient environment without returning the vapor phase to the receiver.