Loading patent…
AssigneeLinde Aktiengesellschaft
InventorAlexander Alekseev
Estimating the term…
The invention relates to a method for cooling a superconducting cable (1) using a coolant containing or consisting of liquid nitrogen, wherein at least a part of the coolant is subjected to a subcooling step and thereafter brought into thermal contact with the superconducting cable (1) in a cooling cycle, wherein said subcooling step is at least in part performed using a refrigerant provided in a Brayton process in which at least a part of the refrigerant is cooled and heated in a main heat exchanger (11). According to the present invention, a part of the coolant is withdrawn from the cooling cycle and heated in the same main heat exchanger (11) in which at least a part of the refrigerant is cooled and heated in the Brayton process. A corresponding device and a corresponding system are also part of the present invention.
A method for cooling a superconducting cable (1) using a coolant containing or consisting of liquid nitrogen, wherein at least a part of the coolant is subjected to a subcooling step and thereafter brought into thermal contact with the superconducting cable (1) in a cooling cycle, wherein said subcooling step is at least in part performed using a refrigerant which is provided in a Brayton process in which at least a part of the refrigerant is cooled and heated in a main heat exchanger (11) wherein a part of the coolant is withdrawn from the cooling cycle and heated in the same main heat exchanger (11) in which at least a part of the refrigerant is cooled and heated in the Brayton process.
A device for cooling a superconducting cable (1) using a coolant containing or consisting of liquid nitrogen, wherein the device is adapted to subject least a part of the coolant to a subcooling step and thereafter bring it into a thermal contact with the superconducting cable (1) in a cooling cycle, wherein for performing said subcooling at least in part a refrigerant is provided in a Brayton process in which at least a part of the refrigerant is cooled and heated in a main heat exchanger (11) wherein means are provided to withdraw at least a part of the coolant from the cooling cycle and to heat it in the main heat exchanger (11) in which at least a part of the refrigerant is cooled and heated in the Brayton process.
Dependencies are inferred from the claim text.