Conveners
M3Or4A - Joint CEC and ICMC Session: Transportation Overview
- Wesley Johnson (Cryogenic Research Engineer, Cryogenic and Fluids Branch (LTF))
Driven by global growth in demand for high-speed mobility, as well as a need to ensure profitability and sustainability of aviation into the future, it has been recognized that a strategic transition towards alternative propulsion and energy sources is necessary. To facilitate ensured energy availability and dramatic decreases in warming potential of commercial air travel into the future, a...
Hydrogen has long been recognized as highly desirable for space transportation. The primary advantage of hydrogen for space applications is that in chemical or thermal propulsion systems, the exhaust products are of low molecular weight and accelerate readily. This results in very high specific impulse (propulsive efficiency). The key challenges with hydrogen applied to space propulsion are...
Historically, NASA has performed many large scale hydrogen ground test to measure the performance of technologies such as insulation, pressure control, line and tank chill-down including venting of vapor. More recently, NASA has focused on the development of numerical codes to predict the performance of these systems and the fluid and thermodynamics within the tanks themselves. Development of...
In Japan, aiming for low emissions of aircrafts, the national project for the development of electric propulsion systems began last June. First fully turbo-electric propulsion systems for e-aircrafts have been conceptually designed. Output power was set to 20 MW for aircrafts with around 150 passengers, such as B737. The propulsion system is composed of fully superconducting generators,...
The aerospace industry is the last transportation industry to implement hybrid-electric technology for propulsion. Nearly exponential growth is occurring recently for electric aircraft propulsion, with reportedly with more than 300 startup companies worldwide formed in the last 2-3 years, and supported by Airbus, Boeing, Embraer, Rolls Royce, Uber, Google, Intel, and others. A 6-9 passenger...
