Conveners
M3Or2A - Transportation Symposium: Transportation Motors IV: with Cryo
- John Durrell (University of Cambridge)
- Jason Hartwig (NASA / GRC)
High-temperature superconductors (HTS) draw much interest in the shipbuilding and other transport industries as the urge to get high-power density and efficient electric propulsion systems. To achieve optimal performance of HTS field pole magnets in motors and generators, it is crucial to regulating the cooling temperature under 40 K and a simple and reliable cooling system is desired. A...
A key problem with current cryogenic aircraft propulsion systems is the mass burden of cooling the high power electric motors and electronics. The anticipated significant mass addition required for thermal management can nullify the entire benefit of utilizing electric propulsion in aircraft due to the additional induced drag on the aircraft.
Instead, a thermo acoustic-based cooling system is...
A new experimental set up for measuring the breakdown strength of gas media in non-uniform electric field at cryogenic temperatures and high pressures is described. Measure of breakdown strength of helium gas at 77 K and 293 K in a non-uniform electric field with a field efficiency factor 62.5% are presented. The results suggest that the breakdown strength in non-uniform electric field relate...
