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  • John2b's Avatar
    7th Oct 2022, 10:12 AM
    John2b replied to a thread Electric cars in At the end of the day
    The following article was widely published in. newspapers around Australia and overseas 60 years before that in 1912! COAL CONSUMPTION AFFECTING CLIMATE The furnaces of the world are now burning about 2,000,000,000 tons of coal a year. When this is burned, uniting with oxygen, it adds about 7,000,000,000 tons of carbon dioxide to the atmosphere yearly. This tends
    2038 replies | 53655 view(s)
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    7th Oct 2022, 09:24 AM
    John2b replied to a thread Electric cars in At the end of the day
    False hypothesis?? Were the people wrong who predicted forests would die, but didn't; children would grow up with learning difficulties but haven't; and the world population would be exposed to excess melanomas but hasn't? Not at all! Governments acted on warnings so acid rain is no longer killing forests because sulphur has been taken out of diesel and removed from coal stacks, children in cities no longer suffer elevated lead blood levels because lead has been taken out of petrol and...
    2038 replies | 53655 view(s)
  • John2b's Avatar
    6th Oct 2022, 09:36 PM
    John2b replied to a thread Electric cars in At the end of the day
    In formula one cars, the system only loads the generator when the brake is applied, diverting energy from what would otherwise be heat in the brake discs to electricity to charge a battery. BEVs do use the drive wheels to turn the electric motor to generate electricity when going downhill or slowing down. The motor system is virtually frictionless, and under braking the energy conversion is typically 95%+ , so the energy recovery works extremely well losing only a few %. Without the energy...
    2038 replies | 53655 view(s)
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    6th Oct 2022, 09:17 PM
    John2b replied to a thread Electric cars in At the end of the day
    It's not perpetual motion, it works by energy recovered by lowering mass (the load) under gravity - hydro based electricity generation uses the same energy conversion principle. But as the vehicle moves down the slope loaded and back up unloaded, more mass is going down than up.
    2038 replies | 53655 view(s)
  • John2b's Avatar
    6th Oct 2022, 08:51 PM
    John2b replied to a thread Electric cars in At the end of the day
    Well actually... Formula One cars developed a hybrid electrical motor/generator driven by the rear wheels called the MGU-K (Motor Generator Unit – Kinetic) to regenerate electrical energy under braking. When the brake system is not engaged, the motor/generator simply free spins with minimal resistance because it is not 'loaded'. The energy recovered during braking is stored in a battery and then used to boost acceleration and/or reduce fuel consumption. This process is repeated several times...
    2038 replies | 53655 view(s)
  • John2b's Avatar
    5th Oct 2022, 10:58 PM
    John2b replied to a thread Electric cars in At the end of the day
    Fortescue Metals are developing the "infinity train" the world’s first regeneratively charged battery electric iron ore train, which uses gravitational energy to recharge its battery without any additional charging requirements on the mainline for the return trip. Fortescue already have eDumpers on trial, 240-tonne battery electric dump trucks that use regenerative braking to charge the battery. In some circumstances when the mine is elevated, descending loaded dumpers can generate more...
    2038 replies | 53655 view(s)
  • John2b's Avatar
    9th Sep 2022, 08:02 AM
    John2b replied to a thread Electric cars in At the end of the day
    I made a post to a newsworthy story relevant to this thread about electric cars.
    2038 replies | 53655 view(s)
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Before you speak, ask yourself: Is it necessary, it is true, does it improve on the silence? - Baba

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