Doesn't Volvo use it in their Bx mild hybrid configurations?
Yep, they absolutely do, good point:)
First thing, the energy density is appalling, about a tenth of gasoline, but they are about 40 times better than a super capacitor.
en.wikipedia.org/wiki/Energy_density
Then there is the size of them, use this calculator to see how large and heavy they need to be.
www.calculatoredge.com/mech/flywheel.htm
Finally, they use 'rare earth' materials for the bearing, not that rare earth materials are rare, and lithium can be mined very cleanly.
cornishlithium.com
Basically a non starter for transport, compressed air offers about the same energy density as the very best flywheels.
Yeah, flywheel energy storage has a whole host of problems unfortunately, that's why it isn't utilized in automotive industry. Still, in other areas it has shown a great potential, as flywheels degrade much slower than batteries and can...
It is used for frequency stabilisation on electrical grids. But now power electronics are cheaper and more reliable.
I looked into a domestic energy storage system, only a couple if kWh, was too large and the safety issues too...
Comments (6)
Doesn't Volvo use it in their Bx mild hybrid configurations?
Yep, they absolutely do, good point:)
First thing, the energy density is appalling, about a tenth of gasoline, but they are about 40 times better than a super capacitor.
en.wikipedia.org/wiki/Energy_density
Then there is the size of them, use this calculator to see how large and heavy they need to be.
www.calculatoredge.com/mech/flywheel.htm
Finally, they use 'rare earth' materials for the bearing, not that rare earth materials are rare, and lithium can be mined very cleanly.
cornishlithium.com
Basically a non starter for transport, compressed air offers about the same energy density as the very best flywheels.
Yeah, flywheel energy storage has a whole host of problems unfortunately, that's why it isn't utilized in automotive industry. Still, in other areas it has shown a great potential, as flywheels degrade much slower than batteries and can...
Read moreIt is used for frequency stabilisation on electrical grids. But now power electronics are cheaper and more reliable.
I looked into a domestic energy storage system, only a couple if kWh, was too large and the safety issues too...
Read more