A Concept of Hybrid Energy Transfer Considering the Multipurpose Utilization of Liquefied Shale Gas, Liquefied Nitrogen and Superconducting DC Cable

Abstract This paper presents a novel concept of hybrid energy transfer considering the multipurpose utilization of liquefied shale gas (LSG), liquefied nitrogen (LN 2 ) and superconducting DC cable (DC SC). For the hybrid energy generation, shale gas (SG) mined from the shale gas areas is used to produce a part of LSG through a series of SG liquefiers, a part of electric power through a series of SG generators and a part of LN 2 through a series of gas nitrogen (GN 2 ) liquefiers. For the hybrid energy transfer, two types of coaxial-type and axis-aligned-type pipe arrangements are proposed and discussed. In addition, considering the heat leakage from the cryogenic LN 2 to room-temperature environment, structural design and consideration of intermediate LN 2 -supply and GN 2 -decompression channel distributed along with the long-distance hybrid energy transfer system are also presented.

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