Bjorn’s Corner: Sustainable Air Transport. Part 19. Fuel Cell propulsion systems

May 13, 2022, ©. Leeham News: Last week, we looked at advanced developments for hydrogen-burning gas turbines. Now we look at the alternative hydrogen-based propulsion system, which uses a Fuel Cell to convert the energy in hydrogen to… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 15. Hydrogen propulsion system choices.

April 15, 2022, ©. Leeham News: Last week, we examined different airliner types’ power requirements and the importance of their size classes in the market. Now we look at what propulsion system alternatives are available when using hydrogen… Read More

Bjorn’s Corner: Sustainable Air Transport. Part 14. Propulsion system requirements.

April 8, 2022, ©. Leeham News: Last week, we discussed the architecture of a liquid hydrogen fuel system. We now start looking at the propulsion system of a hydrogen aircraft. Before discussing how a propulsion system is done,… Read More

Bjorn’s Corner: The challenges of hydrogen. Part 28. Airbus priorities

March 12, 2021, ©. Leeham News: I had the chance to talk about Sustainable Air Transport with Airbus VP Zero Emission Aircraft, Glenn Llewellyn, in the week. The discussion centered around Airbus’ overall direction and the targets with… Read More

Bjorn’s Corner: The challenges of hydrogen. Part 27. Fuel cell APU gains

March 5, 2021, ©. Leeham News: We have discussed different auxiliary power generation principles for a hydrogen aircraft over the last weeks. We found a fuel cell auxiliary power system has many attractions, one being the possibility of… Read More

Bjorn’s Corner: The challenges of hydrogen. Part 23. Hydrogen fuel cells

February 5, 2021, ©. Leeham News: Last week, we started the discussion around fuel cells as a source of electric energy in airliners. We went through the principle and asked some vital questions. Now we look at different… Read More

Bjorn’s Corner: The challenges of hydrogen. Part 22. Hydrogen fuel cells

January 29, 2021, ©. Leeham News: Over the last weeks, we looked at Center of Gravity (CG) problems with rear fuselage liquid hydrogen tanks as used in Airbus’ ZEROe turbofan airliner concept. We can conclude that the CG… Read More