Re:Aviation Is on a Low-Carbon Flight Path
by 08-15 on Thursday November 07, 2019 @03:49PM
(#21477108)
> Combined, that is already better than current jet engines.
Wikipedia lists the GE90-115B at 10kW/kg, four times better than your SOFC. Did you just combine motor and fuel cell to get 17.5kW/kg? That would be hilarious.
> With cogeneration, SOFCs are reaching 80-85% efficiencies
That's creative accounting. You're counting waste heat as if it was useful.
Wikipedia lists the GE90-115B at 10kW/kg, four times better than your SOFC. Did you just combine motor and fuel cell to get 17.5kW/kg? That would be hilarious.
> With cogeneration, SOFCs are reaching 80-85% efficiencies
That's creative accounting. You're counting waste heat as if it was useful.