Katja Diehl1d ago

Zwei Drittel der Energie eines Verbrennungsmotors geht als Wärme verloren. Beim neuesten Elektromotor sind es nicht einmal zwei Prozent. Trotzdem will die konservative Politik am Verbrenner festhalten. Ein technologischer Irrweg

@derfreitag

https://www.freitag.de/autoren/nick-reimer/elektromotor-bringt-es-auf-einen-rekord-wirkungsgrad-von-98-2-prozent

Rekord-Wirkungsgrad bei Elektromotor: Die Zeit des Verbrenners ist vorbei

Zwei Drittel der Energie eines Verbrennungsmotors geht als Wärme verloren. Beim neuesten Elektromotor sind es nicht einmal zwei Prozent. Trotzdem will die konservative Politik am Verbrenner festhalten. Ein technologischer Irrweg

Show threadprof_T
@SheDrivesMobility @derfreitag i teach highschool physics and show the students a photo of cats warming on a hood of a car. I ask them if you spend 100€ on gas, how much of it would you accept to be used on heating for cats? There was one student that wanted to give all 100€ to cats, but most want to give most 10-15€ and are astonished to find out that most of the money one pays for gas in essence goes to warming cats.
Apr 4 at 12:34pmMastodon for Android
Show threadKatja Diehl1d ago
@prof_T @derfreitag lovely story and I want to know the cat guy! :D
Show threadprof_T1d ago
@SheDrivesMobility @derfreitag and here are the heroes of the story! Every student knows that my neighbour has cats🤓
Show threadKatja Diehl1d ago
@prof_T @derfreitag Thx for sharing. I am a cat lady but can´t live with one at the moment, so I need fluffy stuff from others <3
Show threadAndreas Zieritz1d ago

@prof_T @SheDrivesMobility @derfreitag
As a building physics we often need to consider the temperature in a garage below a building. Until now we always assumed temperatures between 5 - 10 C due to heating contribution of fossile cars.

As Norway now goes 100% electric for new cars I expect that we need to do a little more research in the future.

Show threadAndrew1d ago
@prof_T @SheDrivesMobility @derfreitag wtf I love fossil vehicles now
Show threadkaylon1d ago
@prof_T @SheDrivesMobility @derfreitag in German this hits different: 'Für die Katz' (literally 'for the cat) means 'for nothing'.