Electric cars are a waste of valuable resources and are exclusively for the rich 1%. The rest of us are quite content to make the same daily commute on an electric bicycle! And have a bio-diesel car for long journeys alone! Just as green! 
LENR vs Solar/Wind, and emerging Green Technologies.
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And have a bio-diesel car for long journeys alone! Just as green!
Green fuel also produces damaging NOx!!!
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Electric cars are a waste of valuable resources and are exclusively for the rich 1%. The rest of us are quite content to make the same daily commute on an electric bicycle! And have a bio-diesel car for long journeys alone! Just as green!
But more heat added to the atmosphere.
Dr, Richard, what did you get when you did the math?
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Electric cars are a waste of valuable resources and are exclusively for the rich 1%. The rest of us are quite content to make the same daily commute on an electric bicycle!
Electric cars were for rich people a few years ago. Not the 1%, but the top 10%. Now, however, they are falling in price and will soon be cheaper than gasoline cars, when you factor in the cost of fuel and maintenance. Many technologies begin as expensive machines only available to rich people. They are then developed, the price falls, and soon everyone can afford them. Automobiles before 1908 were rich men's toys. Ford began production of the Model T and soon, most middle class people could afford an automobile. Travel by airplane, personal computers, and many other technologies followed a similar course.
Also, in the U.S. it is not possible for most people to make a daily commute on an electric bicycle. I love electric bicycles but they are dangerous on the main roads in Atlanta, and not allowed on the highways.
But more heat added to the atmosphere.
Do you mean with a bicycle? Incorrect. Bicycles use less energy per mile than walking. They are the most energy efficient means of transportation.
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Sony announced they will be selling an electric car. That seems like a dumb move to me. The market is already crowded. They have no experience selling vehicles. If I were them, I would try to sell the technology to existing vehicle manufacturers.
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Electric cars were for rich people a few years ago. Not the 1%, but the top 10%. Now, however, they are falling in price and will soon be cheaper than gasoline cars, when you factor in the cost of fuel and maintenance. Many technologies begin as expensive machines only available to rich people. They are then developed, the price falls, and soon everyone can afford them. Automobiles before 1908 were rich men's toys. Ford began production of the Model T and soon, most middle class people could afford an automobile. Travel by airplane, personal computers, and many other technologies followed a similar course.
Also, in the U.S. it is not possible for most people to make a daily commute on an electric bicycle. I love electric bicycles but they are dangerous on the main roads in Atlanta, and not allowed on the highways.
Do you mean with a bicycle? Incorrect. Bicycles use less energy per mile than walking. They are the most energy efficient means of transportation.
Equating ice vehicle to electric
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Cooling Singapore.
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Equating ice vehicle to electric
Ah, you mean an ICE gasoline engine adds more heat to the atmosphere than an electric car. Yes, because it uses more primary energy. Even if the electric car is powered by an inefficient coal plant, it still uses less energy and produces less CO2 than gasoline. Nowadays most electricity comes from natural gas, wind, nukes or solar.
The heat added by combustion (or a nuclear plant) causes heat island problems, and it heats up rivers, but it does not cause much damage. It leaves the earth in about a half hour. It is not the cause of global warming. That's CO2.
Hybrid cars are much more efficient than ordinary ICE cars. They were a good solution around 2000. But I think they are rapidly becoming obsolete. Fully electric cars will replace them, once the range is long enough and the price falls. I think that is why Toyota has decided to license its patents for free. They want to sell parts to other companies, and they think the window for such sales will close soon. That's what I read.
The final generation of ICE cars is here, and it is the most efficient and probably the best quality in the 130 year history of that technology. It often happens that a technology improves rapidly just before it goes extinct, because it is competing with the new technology which will soon replace it. For example, the last generation of sailing ships, around 1900, were mainly schooners, because you can raise and lower the sails from the deck with machinery. They required fewer sailors, and the sailors were safer. By 1900, not many people were willing to climb up masts to set square sails. The hybrid automobile "borrows" battery and motor technology from the electric car which will soon replace it. The last generation of large propeller driven passenger airplanes were mainly turboprops (prop-jets), with a jet engine turning a large propeller, like the Lockheed Electra. This was a sort of intermediate technology, after jet engines were invented but before they were ready for large passenger planes.
A bicycle is the most efficient means of transportation per passenger mile. A person walks at about 3 mph. When you pedal a bicycle with about the same exertion as walking, you go 6 or 8 mph. An electric bicycle is even more efficient because the conversion from fossil fuel => electricity => vehicle propulsion has better Carnot efficiency than human metabolism. Granted, fossil fuel is not renewable, whereas food is.
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Ah, you mean an ICE gasoline engine adds more heat to the atmosphere than an electric car. Yes, because it uses more primary energy. Even if the electric car is powered by an inefficient coal plant, it still uses less energy and produces less CO2 than gasoline. Nowadays most electricity comes from natural gas, wind, nukes or solar.
The heat added by combustion (or a nuclear plant) causes heat island problems, and it heats up rivers, but it does not cause much damage. It leaves the earth in about a half hour. It is not the cause of global warming. That's CO2.
Hybrid cars are much more efficient than ordinary ICE cars. They were a good solution around 2000. But I think they are rapidly becoming obsolete. Fully electric cars will replace them, once the range is long enough and the price falls. I think that is why Toyota has decided to license its patents for free. They want to sell parts to other companies, and they think the window for such sales will close soon. That's what I read.
The final generation of ICE cars is here, and it is the most efficient and probably the best quality in the 130 year history of that technology. It often happens that a technology improves rapidly just before it goes extinct, because it is competing with the new technology which will soon replace it. For example, the last generation of sailing ships, around 1900, were mainly schooners, because you can raise and lower the sails from the deck with machinery. They required fewer sailors, and the sailors were safer. By 1900, not many people were willing to climb up masts to set square sails. The hybrid automobile "borrows" battery and motor technology from the electric car which will soon replace it. The last generation of large propeller driven passenger airplanes were mainly turboprops (prop-jets), with a jet engine turning a large propeller, like the Lockheed Electra. This was a sort of intermediate technology, after jet engines were invented but before they were ready for large passenger planes.
A bicycle is the most efficient means of transportation per passenger mile. A person walks at about 3 mph. When you pedal a bicycle with about the same exertion as walking, you go 6 or 8 mph. An electric bicycle is even more efficient because the conversion from fossil fuel => electricity => vehicle propulsion has better Carnot efficiency than human metabolism. Granted, fossil fuel is not renewable, whereas food is.
Jed,
Heat leaves earth in 1/2 hour?
Where in gods name did you get that,
I have built many models and it some cars it takes decades
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Heat leaves earth in 1/2 hour?
That's how long it takes waste heat from a body to radiate out into space. That is why a desert cools so quickly after sunset.
I have built many models and it some cars it takes decades
Do you mean "in some cases" it takes decades?
What cases? From the atmosphere? All of the meteorology and physics I have read says it takes 30 minutes max.
I suppose it might take decades for a large body of lava to cool down, but waste heat released into the atmosphere goes away quickly. Heat islands are maintained by a continuous flow of new heat from the machinery, and by things like buildings gradually cooling down. It takes a long time for large, well insulated building to cool. If it is winter and the building is heated, obviously it will radiate the whole time. A whole downtown area will be warmer from that.
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Hybrid cars are becoming obsolete because they are fine on short runs but as soon as the battery is used up on motorway long distances the small ICE becomes grossly inefficient pulling along the battery dead weight. Most newer diesel cars now are fitted with the 'blue motion' exhaust cleaning system which adds urea and water to the exhaust gases to reduce NO2 emissions. if we all replaced petrol with alcohol and mineral diesel with bio-diesel, we surely would be as 'green' as the fully electric car which has to be charged up from coal or gas or nuclear fission - fired power stations.??
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Hybrid cars are becoming obsolete because they are fine on short runs but as soon as the battery is used up on motorway long distances the small ICE becomes grossly inefficient pulling along the battery dead weight. Most newer diesel cars now are fitted with the 'blue motion' exhaust cleaning system which adds urea and water to the exhaust gases to reduce NO2 emissions. if we all replaced petrol with alcohol and mineral diesel with bio-diesel, we surely would be as 'green' as the fully electric car which has to be charged up from coal or gas or nuclear fission - fired power stations.??
.'I have a diesel car with all the bells and whistles model 2014. Paid 3500 dollar this year for all the technical issues and complexities. I will never buy another ICE.
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Has anyone heard about the new rectangular Li-Fe-Li ion batteries the Chinese are fitting to their new BYD electric cars which are air-cooled? Elon Musk is interested in replacing the existing water-cooled Tesla batteries with these. Could be a game-changer.
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A bit of game play with the sale or understanding of the battery but gave him a dealership as compensation for it. seems like a trap to me.. they are still thinking about moving to the country of the dealerships.
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Hybrid cars are becoming obsolete because they are fine on short runs but as soon as the battery is used up on motorway long distances the small ICE becomes grossly inefficient pulling along the battery dead weight.
My 2010 Prius goes less than a mile when run on battery only. So the battery storage plays no role in distance capacity. But the Prius gets 50 mpg at 60 mph. That is much better than any gasoline-only engine can get, or ever will get. The battery is never dead weight, because it is continually charging and discharging. When you go downhill or put on the brakes, it charges. When you accelerate or go uphill, it discharges. This is clearly shown on the dashboard.
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That's how long it takes waste heat from a body to radiate out into space. That is why a desert cools so quickly after sunset.
Do you mean "in some cases" it takes decades?
What cases? From the atmosphere? All of the meteorology and physics I have read says it takes 30 minutes max.
I suppose it might take decades for a large body of lava to cool down, but waste heat released into the atmosphere goes away quickly. Heat islands are maintained by a continuous flow of new heat from the machinery, and by things like buildings gradually cooling down. It takes a long time for large, well insulated building to cool. If it is winter and the building is heated, obviously it will radiate the whole time. A whole downtown area will be warmer from that.
Most of the heat generated by human activity comes from burning oil.
Humans activity generated over
200,000,000,000,000,000 btu of heat in 2019, do the math.
Sea level to exosphere in ft
Use a Ufactor of 4btu/hr ft^2 °f
Calculate surface area at exosphere (where heat leaves earth),
dt of 700 0° f.
1/2 hour is beyond ludicrous no matter what you plug in. 1/2 your lifetime is closer
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Well my brother gets 50 mpg from his battered old Nissan Micra which runs on petrol alone. Equally efficient to the Prius and he only paid £500 for it! You see there are always exceptions to your electric car or hybrid solutions.
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Then again e.g. the Triumph Motorcycle Speed Triple does 50-60 mpg if driven carefully with its 1050cc engine. Petrol only. But now they have a new electric prototype which does exactly the same!
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Electric cars are a waste of valuable resources and are exclusively for the rich 1%. The rest of us are quite content to make the same daily commute on an electric bicycle! And have a bio-diesel car for long journeys alone! Just as green!
That is clearly not true because in the UK 25% of UK new cars NOW are EV, with the fraction going up.
It is true that EVs are more expensive now except for people doing high mileage charging at home where fuel advantages can make them break even.
Still economies of scale are bringing prices down rapidly, they will be cost-competitive for everyone within 10 years.
Also it is worth remembering the technological driver here. Battery costs, energy density, power density are all getting better steadily. There is no technological reason why that should not continue, and in fcat speed up as we get better at simulations etc that help design new battery systems. It is a very exciting and large technological effort which you can see will end up making batteries both better and cheaper.
So EVs have a bright future.
What i cannot tell with whether advances in hydrogen storage and fuel cells and refuelling tech will mean that hydrogen cars will dominate. If I had to guess I'd say hydrogen for commercial fleets with specialised refuelling depots where long range or high power is also needed, and EVs for all private cars.
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Well my brother gets 50 mpg from his battered old Nissan Micra which runs on petrol alone. Equally efficient to the Prius and he only paid £500 for it! You see there are always exceptions to your electric car or hybrid solutions.
Maybe he has petrol fingers:
Pricing Fuel efficiency / Autonomy
City 9.0 L/100km Highway 6.8 L/100km 6.8 l/100km = 34.6 mpg
