Bjorn’s Corner: Sustainable Air Transport. Part 22P. Fuel Cell system efficiency and mass. The deeper discussion.

Subscription required June 3, 2022, ©. Leeham News: This is a complementary article to Part 22, Fuel Cell system efficiency and mass. It analyses the power, loss, mass, and efficiency consequences of the different fuel cell architectures described… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 21. Fuel Cell system design

May 27, 2022, ©. Leeham News: Last week, we looked at the power levels we need in a fuel cell and electric motor system. We listed the required powers and durations for takeoff, climb, and maximum continuous power… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 18. Advanced Hydrogen Gas Turbines

May 6, 2022, ©. Leeham News: Last week, we looked at how we create the shaft power for the thrust device we discussed before. We described the basics of a hydrogen-burning gas turbine alternative. When we have liquid… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 12. Hydrogen storage.

March 25, 2022, ©. Leeham News: Last week, we looked at the energy density by mass and volume for hydrogen and regular Jet fuel (Kerosene), Figure 1. With this information, we now look at how these fuels can… Read More

Pontifications: Does Embraer’s turboprop design foretell what Boeing needs?

Aug. 23, 2021, © Leeham News: Could Embraer’s new turboprop design have formed the basis for the 100-150 seat Boeing single-aisle aircraft had the joint venture proceeded? A former Boeing engineer thinks it might have. The aft-mounted, open… Read More