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  1. Join Date
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    #1
    http://www.theaircar.com/index.html

    if im not mistaken, no matter how far engineers go in refininng the combustion engine, it has reached its limitation, heavy weight, poor power conversion, etc etc

    this new technology aims to reduce fossil fuel comsumption of cars by 2000%. how? by using compressed air, how do we compress air? by using a small petrol powered compressor on board the car.

    basically its a sound idea if you read it, claims 300km per tank load of COmpressed air, if ever u ran out, just turn on your mini petrol compressor and fill your tanks with compressed air, all under 3 minutes.

    kelan kaya daratin to sa pinas.

  2. Join Date
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    #2
    aircondition? its the whole process of air decomppression, no CFC or aircon compressor, basically it claims that when compressed air decompresses thru exhaust its temperature is between 0 to -15 celsius,

    astig

  3. Join Date
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    #3
    Quote Originally Posted by Mojo
    http://www.theaircar.com/index.html

    if im not mistaken, no matter how far engineers go in refininng the combustion engine, it has reached its limitation, heavy weight, poor power conversion, etc etc

    this new technology aims to reduce fossil fuel comsumption of cars by 2000%. how? by using compressed air, how do we compress air? by using a small petrol powered compressor on board the car.

    basically its a sound idea if you read it, claims 300km per tank load of COmpressed air, if ever u ran out, just turn on your mini petrol compressor and fill your tanks with compressed air, all under 3 minutes.

    kelan kaya daratin to sa pinas.
    The concept is sound. But there are a few hang-ups. You will still need to use fuel (gasoline/diesel/etc) to fill your air-tanks with compressed air. The compressed air is simply the stored energy of the fuel used to compressed it.

    Question, what is the mechanical efficiency of the compressor and of the air-engine and then compare this to the mechanical efficiency of a current internal combustion engine or alternatives like electric-gas hybrid cars.

    The air-car concept as mentioned in the website linked above is simply another twist of a hybrid powered car. We can call it compressed air-gasoline hybrid car (as compared to electric-gasoline hybrid) since the compressor system is carried on the vehicle itself.

    BTW, the taxi variant is interesting. I wonder how much such a vehicle would sell if it would be sold in the local market?
    Last edited by ghosthunter; April 20th, 2005 at 12:47 PM.

  4. Join Date
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    #4
    true

    another twist, but hybrids do that too, we cant have a totally clean car, the power must come from somewhere, but the air car basically the cleaniest among the present technology we have.

    where can u find a car that instead of producing heat it produces cold air , it adds to the cooling effect? hehehe only time it produces heat when it compresses air using the mini compressor which is done between 3 to 5 minutes.



    here a nice thread about the car.

    http://www.theenvironmentsite.org/Fo...er=asc&start=0

    all cars hybrid or not, produces waste, aside from carrying cells which they say are toxic, if not disposed properlly.

    among the choices ill go for the aircar, atleast its simple, hybrids carry alot of junk like fuel cells, a full sized internal combusion engine, on board computers etc etc.

    on the aircar, it carries a minimum of those.

    i

  5. Join Date
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    #5
    we all now internal combusion engine can only convert 30% of the energy into power, the rest of it is lost to friction, and heat, plus the weight/metal u need to haul arround to contain the heat, elimate friction, and contain the combustion.

    with the wieght of those, u need sturdier chassis, heavier suspension, which in turn demands more hydrailics etc etc

    in short its a mess

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    #6
    i dont really consider it as a air- gasoline hybrid, since u can get the compressedd air from refilling station if there are around na.

    if ever ur force to use the mini compressor ull be doin it between 3 to 5 minutes for a 200-300km distance.

  7. Join Date
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    #7
    Quote Originally Posted by Mojo
    i dont really consider it as a air- gasoline hybrid, since u can get the compressedd air from refilling station if there are around na.

    if ever ur force to use the mini compressor ull be doin it between 3 to 5 minutes for a 200-300km distance.

    the energy used to compress the air still has to come from somewhere. There is no "free lunch". We aren't talking about going to your local gas station, this will be a totally new infrastructure to support this concept.

    How much energy (kilowatt/hours) will be needed to fill one 300 bar compressed air tank?

    btw, i doubt if your local gas station air hose will supply 4351psi of air.
    Last edited by ghosthunter; April 20th, 2005 at 12:56 PM.

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    #8
    Here's a hitch, 300 bars of pressure in the compressed air tank. Thats about 4,351psi. wow!

    if ever that air tank ruptures, I do not want to be sitting on top of it.

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    #9
    wow when the time comes these cars become mainstream maybe mercs n ferrarris will have falling prices hehe

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    #10
    the tank is made of carbon fiber, no explosion only cracks, since its not metal.

    the carbon fiber technology is licensed from airbus.





    Compressed air tanks

    One of the most frequently asked questions is about the safety of the compressed air storage tanks. These tanks hold 90 cubic metres of air compressed to 300 bars. Many people ask whether this system is dangerous in case of an accident and if there is a risk of explosion. The answer is NO. Why? Because these are the same tanks used to carry the liquid gas used by buses for public transport. The tanks enjoy the same technology developed to contain natural gas. They are designed and officially approved to carry an explosive product: methane gas.

    In the case of a major accident, where the tanks are ruptured, they would not explode since they are not metal. Instead they would crack, as they are made of carbon fibre. An elongated crack would appear in the tank, without exploding, and the air would simply escape, producing a loud but harmless noise. Of course, since this technology is licenced to transport an inflammable and explosive gas (Natural gas), it is perfectly capable inoffensive and non-flammable air.

    It is fitting, therefore, that MDI has reached an agreement with the European leader in aerospace technology Airbus Industries for the manufacture of the compressed air storage tanks. With a remote supervision arrangement, Airbus Industries oversees the making of the storage tanks at each MDI factory. The coiled carbon fibre technology used in the construction of the tanks is complex and requires a substantial quality control process which the multinational company, home of the Airbus aircraft, will provide for our vehicles.

  11. Join Date
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    #11
    Quote Originally Posted by Mojo
    the tank is made of carbon fiber, no explosion only cracks, since its not metal.

    the carbon fiber technology is licensed from airbus.





    Compressed air tanks

    One of the most frequently asked questions is about the safety of the compressed air storage tanks. These tanks hold 90 cubic metres of air compressed to 300 bars. Many people ask whether this system is dangerous in case of an accident and if there is a risk of explosion. The answer is NO. Why? Because these are the same tanks used to carry the liquid gas used by buses for public transport. The tanks enjoy the same technology developed to contain natural gas. They are designed and officially approved to carry an explosive product: methane gas.

    In the case of a major accident, where the tanks are ruptured, they would not explode since they are not metal. Instead they would crack, as they are made of carbon fibre. An elongated crack would appear in the tank, without exploding, and the air would simply escape, producing a loud but harmless noise. Of course, since this technology is licenced to transport an inflammable and explosive gas (Natural gas), it is perfectly capable inoffensive and non-flammable air.

    It is fitting, therefore, that MDI has reached an agreement with the European leader in aerospace technology Airbus Industries for the manufacture of the compressed air storage tanks. With a remote supervision arrangement, Airbus Industries oversees the making of the storage tanks at each MDI factory. The coiled carbon fibre technology used in the construction of the tanks is complex and requires a substantial quality control process which the multinational company, home of the Airbus aircraft, will provide for our vehicles.
    That is a major problem because those carbon-fiber compressed air tanks will be expensive. And even today, carbon-fiber is not a material used for the common car. Its automotive use is limited to supercars and race cars (and hoods of some modified Honda Civics).
    Last edited by ghosthunter; April 20th, 2005 at 01:08 PM.

  12. Join Date
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    #12
    about its effeciency compared to internal combustion.

    http://www.theaircar.com/tecno.html



    price is around 5000 to 7000 pounds hehehe mahal pero yung environment natin priceless naman ah

  13. Join Date
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    #13
    Quote Originally Posted by Mojo

    price is around 5000 to 7000 pounds hehehe mahal pero yung environment natin priceless naman ah
    5000 british pounds = PHP 520,510.72

    whats does that 5000 pounds buy? the air tank alone?!?

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    #14
    whole car na daw yung 5000 to 7000 pounds

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    #15
    Quote Originally Posted by Mojo
    whole car na daw yung 5000 to 7000 pounds
    well, that sounds better. But given import costs, taxes, dealer overhead, etc... the price will go up more than that.

    Sorry, if I kinda sound pessimistic but I am trying to be realistic about it.

  16. Join Date
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    #16
    mass production ang balak ng company, if you read their faqs, they are possition to go mass production sa europe, us, canada and latin america.

  17. Join Date
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    #17
    heheh
    oks lang yun

    pwede rin dito gawin yan sa pinas pag may nag balak. At nandyan naman mga Chinese, pag mabagal ang pag market ng ganyan kotse, expect mo nga chinese gagawa ng ganyan.

  18. Join Date
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    #18
    originally posted by Mojo "In the case of a major accident, where the tanks are ruptured, they would not explode since they are not metal. Instead they would crack, as they are made of carbon fibre. An elongated crack would appear in the tank, without exploding, and the air would simply escape, producing a loud but harmless noise. Of course, since this technology is licenced to transport an inflammable and explosive gas (Natural gas), it is perfectly capable inoffensive and non-flammable air."

    BS! no matter what the composition of the tank may be, compressed air is energy, and any sudden release of energy is deadly. 300 bar is a lot of energy, enough to cut any human being into many small pieces. i would not wnat to be caught in an accident with 300 bar of compressed air under my arse!

    btw, according to OSHA the safe working pressure when working with compressed air is only 40 psi. anything more than that can cause air injection through the skin. i've seen reports of people with amputated hands and arms because of accidental air injection (ok, ok, the pressures were around 500-2000 psi when they had their accidents). but 300 bar is still 4400 psi and that is a lot higher. don't tell me that when that 300 bar compressed air escapes through a "crack" it won't kill you. "loud but harmless noise" my ass, that could be the last thing you'll ever hear!
    Last edited by yebo; April 20th, 2005 at 02:39 PM.

  19. Join Date
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    #19
    Quote Originally Posted by yebo
    "loud but harmless noise" my ass, that could be the last thing you'll ever hear!
    "Loud but harmless noise my ass" made me think of something else.... :butt:

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    #20
    Pogi

    wag mo ako i qoute nag cut and paste lang ako sa website nila.

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