Experimental investigation on a non-flammable mixed refrigerant Joule-Thomson refrigerator for a 100 K cooling temperature

Lee, Cheonkyu; Kim, Seojeong; Jeong, Sangkwon

doi:10.1016/j.applthermaleng.2024.122822

Cited by 4 publications

(1 citation statement)

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“…This paper investigates options for refrigerating the coils of a superconducting motor and what that means in the context of an aircraft. Earlier studies of whole-aircraft concepts [8,9] have considered various aspects of these questions in detail, however as we develop new prototypes at the component level [10,11] and improve our understanding of fundamental superconductor characteristics [12] we are forced to regularly re-evaluate our assumptions. The next step for this work is to build our cooling system concepts as sub-systems in whole-aircraft simulations, and this will naturally require collaboration with air-frame specialists.…”

Section: Introductionmentioning

confidence: 99%

Cooling of Superconducting Motors on Aircraft

Caughley,

Lumsden,

Weijers

et al. 2024

Aerospace

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Superconducting electric motors are required in order to deliver lower-carbon aviation. Critical to the success and viability of operating superconducting electric motors in aviation is keeping the superconducting coils at their operating temperature. This paper examines the challenges of keeping a superconducting motor cold if it were used on a single aisle passenger aircraft such as an Airbus A320. The cooling problem is defined and different cooling scenarios are investigated to determine viability. The investigation has shown that for a motor with a superconducting rotor only (copper stator), a Stirling-type cryocooler would be sufficient. However, if the motor is to be fully superconducting, then the cooling loads of the stator, which are much higher, make mechanical refrigeration impractical and the only option is to cool the motor with the heat sink of a liquid hydrogen fuel.

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