“Ray Hammond delivered a great keynote. He is a superb speaker.” Google
“Ray gave us an incredible, upbeat glimpse into the future.” Mastercard
“Ray Hammond is one of the best public speakers we have ever seen.” GE Corporation, Europe
“A really stunning keynote speech.” Microsoft
“Ray’s speech was uplifting, inspiring and visionary.” Vodafone
“Ray stimulated and inspired our North American sales team at the end of a very long day.” Ericsson Networks
“As a speaker, Ray Hammond has Mojo!” National Property Council of Australia.
“Ray Hammond was fabulous. He bent our minds.” Intel Corporation
“Ray – thank you for your terrific contribution to our Business Leadership Forum.” McKinsey & Co
“Ray was awesome at our 4th Annual Seminar in Montego Bay.” Ministry of Tourism, Jamaica
“Ray was brilliant at our client conference in Cape Town.” Telkom SA

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Glimpses Of The Future

Is Hydrogen The Fuel That Will Make Long-Haul Flying Clean?

Long-haul aviation, like everything else in the human world, needs to be totally decarbonised, and in the race to zero emissions for international airliners, liquid-hydrogen powertrains look like one of the only viable possibilities.

Liquid H2’s main attraction to aircraft designers is its impressive energy density by weight, but Airbus believes there are serious opportunities to be explored in another of its properties: temperature. To keep it liquid, it needs to be stored cryogenically at -253.15 °C (-423.7 °F), and Airbus figures that if you’ve got a monster cold source like that on board your aircraft, you might as well make use of it.

The theory is that the liquid hydrogen can supercool the entire electric powertrain down to superconducting temperatures, at which point resistance virtually disappears from the system, and efficiency skyrockets. A powertrain designed to take full advantage of this effect, reasons Airbus, could get the same job done at less than half the weight, half the electrical losses and reduced voltages.


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