Design and Analysis of Cryogenic Cooling System for Electric Propulsion System Using Liquid Hydrogen

As the demand for eco-friendly energy increases, hydrogen and liquid storage technologies are being developed as an alternative. Hydrogen has a lower liquefaction point higher thermal conductivity than nitrogen or neon used in general cryogenic systems. Therefore, application of to systems can increase efficiency stability. This paper describes design analysis cooling system electric propulsion using refrigerant source. The proposed aviation (APS) consists fuel cell, battery, power distribution system, motor. For lab-scale 5 kW superconducting motor 2G high-temperature (HTS) wire, HTS were analyzed electromagnetic characteristics finite element method-based program. hydrogen-based pre-cooling coil system. Based on load results coil, target temperature gas pre-cooling, number buffer layers, cryo-cooler capacity selected minimize result, was stably liquefied, corresponding designed maintained at 30 K.