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David Elliott
Engineering Explained
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Comments by "David Elliott" (@davidelliott5843) on "Are Electric Cars Worse For The Environment? Myth Busted" video.
A British startup (Naro) designed a two seat tandem car that little wider than a motorcycle. It also leaned into corners like a motorcycle. It gave the safety of a car with the road lane usage of a bike so twice as many cars could use the same road space. It was a technical marvel but failed of course. The motor industry and buyers are just not interested in such innovations.
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Big motorcycles use more fuel and cost more to build than small cars. But scooter size bikes even the larger engine types are more efficient than cars. The big snag is use safety of bikes
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nickie banchou Old style two strokes are dirty. Today’s are clean, very fuel efficient and powerful. Check out the Rotax used in Skidoo snow sleds and Evinrude outboards. They do use slightly more oil than four strokes but it’s burnt cleanly with the fuel and there is no waste oil to be disposed
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Isaac Karjala Today’s motorcycles have fuel injection, catalysts, variable valve timing and even keep one inlet valve shut for low power needs. Rotax ETEC 2 strokes are super clean, very fuel efficient, lightweight and powerful. the 800cc Skidoo beats (at all levels) competing 4 strokes with 1200cc
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Epotheros But a commuter car carrying one person uses nearly double the fuel and four times the road space of a medium size motorcycle carrying one rider.
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Mr Squeak The Cat. Big powerful cars are not fuel efficient. Funnily enough big powerful bikes are also not fuel efficient. But you don’t need 1200cc and 150bhp to get to the office. A 250cc scooter is more than adequate and will do 80mpg or better.
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The gasoline car emissions should include those for engine transmission fuel system etc etc. Also the car batteries will not be scrapped when no longer suitable in the car. Used car batteries will be put into power grid support. Power walls etc.
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We do need to consider our electricity infrastructure. If everyone in my street was to connect an electric car overnight the street power cables would not be able to take the demand. I also think the small capacity batteries in such as Nissan Leaf will not be the norm. Their range is just too restrictive for most people. That puts more demand on overnight charging.
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Using the average gasoline emissions for the high power high vale electric cars is actually unfair because they are really competing against the gas guzzlers of the gasoline world. That makes an even better case for electric cars.
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Our power supply system just has to move forward. Renewables being so unreliable are reaching their peak because they must have conventional plants to fill the gaps. The logical solution to that is molten salt nuclear. Moltex and Thorcon seem to be making the running on this. It’s time for another video on the subject. See if you can get their people to discuss Ian Scott and Robert Hargraves are great communicators
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