Theoretical Modeling and Preliminary Design of Hybrid Energy Transfer Pipeline Based on Liquefied Natural Gas and Superconducting Cable

Structural design and comparison of two types of hybrid energy transfer pipelines (HETP) are presented for achieving long-distance transfer of chemical energy and electrical energy. The first high-capacity type HETP consists of one liquefied shale gas (LSG) channel inside and one liquefied nitrogen (LN
₂
) channel outside. And the second type HETP is formed by one LN
₂
channel inside and one LSG channel outside. A high temperature superconducting (HTS) cable immersed in the LN
₂
is applied to transfer DC power with nearly zero energy consumption. As a case study on “Sichuan to East Gas Pipeline Project”, conceptual design and performance comparison of two types of HETP schemes are discussed.