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I came across a really interesting video yesterday (https://www.youtube.com/watch?v=Aubi3cK8Ym0 https://www.youtube.com/watch?v=Aubi3cK8Ym0) that touches on bra
by guidoiaquinti 1y ago
I came across a really interesting video yesterday (https://www.youtube.com/watch?v=Aubi3cK8Ym0 https://www.youtube.com/watch?v=Aubi3cK8Ym0) that touches on brake-dust pollution. It also explains how regenerative (kinetic-energy) charging can cut down on heat pollution, something I hadn’t realized before. That’s actually a big deal for underground metro systems; for instance, the London Tube keeps getting hotter every year.
- spuz 1y agoYes indeed the London underground does use regenerative braking on many of their lines. The cool thing about a direct rail power system is that the voltage generated from trains that are braking can be fed back into the power rail to instantaneously power other trains on the same line that are accelerating. No need to carry the extra weight of a battery or flywheel. And like you say, it helps keep the tunnels cooler.
- KaiserPro 1y agoIt has to be the same segment, which is a bit of a pain to manage. The amount of power being fed in is getting close to megawatts.