Air Car: India's Eco-Friendly Auto

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The Air Car, developed by Guy Nègre and set for mass production by Tata Motors, is the first commercial vehicle powered by compressed air. Anticipated to launch in India by 2008, the CityCAT model will reach speeds of 68 mph and have a range of 125 miles, with refueling costs around $2. The vehicle operates using compressed air to drive its pistons, and while it promises practicality and affordability, concerns about energy density compared to gasoline remain. Critics highlight that compressed air is less efficient for energy storage, with thermodynamic efficiency capped at around 40%, compared to 80% for conventional hybrids. The Air Car's design includes carbon-fiber tanks and a built-in compressor for refilling, but its reliance on electricity raises questions about overall pollution displacement. Despite skepticism about its viability, the Air Car's potential to reduce urban pollution and its simple manufacturing process are noted advantages. The technology's future will depend on overcoming efficiency challenges and market acceptance.
  • #31
Popular Mechanics has seen enough merit in this invention (air car) to write an article about it.

Barring any last-minute design changes on the way to production, the Air Car should be surprisingly practical. The $12,700 CityCAT, one of a handful of planned Air Car models, can hit 68 mph and has a range of 125 miles. It will take only a few minutes for the CityCAT to refuel at gas stations equipped with custom air compressor units; MDI says it should cost around $2 to fill the car’s carbon-fiber tanks with 340 liters of air at 4350 psi. Drivers also will be able to plug into the electrical grid and use the car’s built-in compressor to refill the tanks in about 4 hours.

Of course, the Air Car will likely never hit American shores, especially considering its all-glue construction. But that doesn’t mean the major automakers can write it off as a bizarre Indian experiment — MDI has signed deals to bring its design to 12 more countries, including Germany, Israel and South Africa.

http://www.popularmechanics.com/automotive/new_cars/4217016.html

There's also a video on UTube of the vehicle which also demonstrates how you can hand pump air into the air tanks on board the air car.:rolleyes:



Critics of the air-powered car idea say that the cars only move the air pollution from the car's exhaust to somewhere else, like an electrical power plant. These cars do require electricity in order for the air to be compressed inside the tanks, and fossil fuel power is needed to supply electricity.

http://auto.howstuffworks.com/air-car1.htm

Electricity is also available from solar panels, hydro dams, tidal generators, wind generators, fuel cell generators ( http://www.generatorhydrogen.info/ ) etc...
 
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  • #32
psst psst psst psst psst psst pssssst psst psst psst psst psst

(aircar that needs a tune up :wink:)
 

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