Yes, as the title says we are going to talk about an air powered car. This is not in any way science fiction and some are already on the market. So let us begin.
What is it?: The air powered car is a vehicle with an engine designed to use compressed air to drive the motor. It works on the same principle as a traditional engine, but the compressed air pushes the pistons rather than a controlled explosion. These engines generally require no lubricants of any sort as the air itself provides a barrier to any sort of friction in the engine. In tests, the air powered car has gone over a 120 miles without fueling and the goal is to have a car that can go from
Safety first: Safety wise, compressed air is volatile. If say a traditional metal tank cracks, it will shatter like a large hand grenade. Engineers have solved this problem by making the air tanks out of carbon fiber which are designed to split open in case of a breach. Also, to address concerns that a breach in the tank will cause the car to launch like a rocket, safety release valves are place on the sides to prevent such an occurrence.
Is it truly fuel free?: Not entirely. You still need a compressor to compress the air in the tank. Filling such a tank could take as long as 2 hours. But, fueling stations will have technology that will solve that issue. Also, on board air compressors can and will be used to help refuel. While fueling stations can compress air off the energy grid, or even use solar and wind power to generate more electricity to compress air, the car will still need fuel. In this case, an 8 gallon gas tank will be used. However, while not 100% fuel free (yet), they produce less pollution than even a hybrid. The fuel will only be used to re-compress the tank and while at higher speeds than 35 miles per hour to generate more power. Future technology may see solar panels, and small wind turbines to charge batteries that will air in replacing the on board fuel supply.
Conclusion: These vehicles are the future if the public catches on to them. They provide a cleaner alternative to gas powered vehicles and are actually lighter and thus more fuel efficient. The only emissions while running on compressed air is well "air". Compressed air also has the ability to cool the environment which will be great for roads in summer as heat can damage them. Can you imagine how much we all can save in road work costs if cars cool the road as they drive preventing them from buckling and deteriorating due to heat? Also, as the air powered car is at most a ton in weight, this will provide less wear on the roads as well. There is another source of potential savings. Costs at the pump impact food prices and the price of all other goods as well. There will be trucks powered by air on the cheap. While normal trucks may need over $100 in fuel, an air powered version may on spend about $20 (based on the estimate that you only need $2 to fill up a passenger version). This will mean the price of goods will decrease dramatically. Welcome to a cleaner future where air, the most abundant resource on earth can be used to power your car for less than $2 worth of electricity.
To find out more check out the How Stuff Works web site here :
http://auto.howstuffworks.com/fuel-efficiency/vehicles/air-car.htm
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