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Guy Negre of MDI Air Car engine that runs on compressed air. Emissions are only filtered air that’s cleaner than outside air. 300 bars of pressure in carbon-fibre & kevlar air tanks. Car can travel at 110 km/hr and has a 150 km driving range. Refilling can be done by plugging in at home or at a special high-pressure air station. Dual-energy models use small amounts of bio-fuels that can extend the range to over 1400 kms. Pollution free vehicle that produces zero emissions. When the car stops …
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Nov 19, 2009 at 10:59:05
fizzguts is an angry tool who can blow me
Nov 19, 2009 at 10:59:05
Why do you believe with NO evidence everything scamming arsehole on Youtube?
Google “vencat 20 miles”
Google “rexreserch negre”
Google “e.volution south africa”
Tell you what. You produce one independent test report where the range and speed claims have been tested and confirmed and I will shut up.
Hello
Silence
My curiosity is exercised by real wonders Check my favourites
This is a pathetically obvious SCAM
Nov 19, 2009 at 10:59:05
why must everything always be con? as if everything was con for you eh? consider this whit some curisioty instead of blindly slamming it down, youd see that not everything is just to take your money
Nov 19, 2009 at 10:59:05
“I’m convinced! You’re right.”
Finally enlightenment and punctuation no less!
As for the rest of your comments
The editor of major newspaper once wrote
“Dear pot thank you for your comments signed kettle”
Bwahahahahaha
Nov 19, 2009 at 10:59:05
Woo hoo, I’m awed by your intellectual superiority. You can gab and insult. I’m convinced! You’re right. You have to be right or else you wouldn’t need to sling insults like an insecure adolescent in his mom’s basement.
Nov 19, 2009 at 10:59:05
Can’t you read? ]
Yahoo groups Files
GAST power volume pressure curves all prove my points
You have blind faith and innumeracy on your side. Whee
Nov 19, 2009 at 10:59:05
I’ve contacted TATA though I doubt they’ll reply. GAST is a manufacturer, there’s no info concerning the physics of air powered vehicles.
You talk about math but you don’t make specific mathematical source references.
Nov 19, 2009 at 10:59:05
Repeating EMAIL TATA No cars no way no how.
Google GAST air motors more info than you can shake a stick at.
If you still can’t get your head round the maths join yahoo groups airpoweredvehicles
I only lurk on it but there is a bucket load of files to prove MDIs is a steaming pile of poo.
Nov 19, 2009 at 10:59:05
First, whether Tata got burnt is a business issue.
Second, no one announces a big business deal without first examining the product carefully. I’ve only run a small business and I sure wouldn’t! TATA? I trust them.
As for the “assuming 100% efficiency of the engine* thing, that’s referring to the gas engine, not the air motor. 16 KWH is about what decent home-brew-hack electric car with lead acid batteries has.
Now, where are _your_ cited sources proving that the physics don’t work out?
Nov 19, 2009 at 10:59:05
Email TATA. Ask them when they go into production Answer Never. They got burnt. Probably there is a marketing whiz kid now selling Tata cars in down town Kabul.
“assuming a 100% efficiency of the engine” And “assuming” I can harness flying pigs see you on the moon. Even if 100% was true = 28km Whee
Can you cite ANYWHERE on the web where a non MDI person has driven ANY of their cars to the promised distance or at the promised speed? I’ve been waiting 10 years
Nov 19, 2009 at 10:59:05
Angry or not, you need to refrain from name calling.
As for the technical matters, I don’t think the engineers at TATA motors would fail to at least test run the MDI car or realize major problems. Can you cite (web) a source that proves this is impossible?
I’ve found one which indicates that
“300 litres (11 cu ft) of air at 30 MPa (4,500 psi) contains about 16 kWh of energy (the equivalent of 1.7 liters [0.44 US gal, 0.37 imp gal] of gasoline, assuming a 100% efficiency of the engine).”
Nov 19, 2009 at 10:59:05
The volume of tanks per MDI’s website are totally inadequate for the range / performance claims. Try a 20 foot container packed with dive tanks towed behind the air car to get the range speed claims.
Me angry? Absolutely, I hate these slimy con artists who have taken well over $13M from investors.
The air motor is constrained by expansion of an ideal gas that sets the maximum efficiency. Nothing in the “design” gives an improvement over existing uniflow expansion engines
Nov 19, 2009 at 10:59:05
Lighten up dude. Did somebody sell you a bridge or something?
You’re not even considering the volume of the tanks on the car.
Also, specify exactly why the laws of thermodynamics invalidate this exact implementation of the air motor.
Nov 19, 2009 at 10:59:05
MDI claim to use 4500psi tanks and get 7.2km lets say we get 10,000psi tank now it goes 15km
Whee
The better motor design is limited by thermodynamics. it is well understood and has been since the 1930’s. There is no magic “better” air motor
a fool and his money
Nov 19, 2009 at 10:59:05
The technology we have now makes storage at higher pressures possible. We have composite materials and better metal alloys to make the tanks from. We also have better motor/engine design and materials as well. Finally, we can now build a car that’s lighter but still reasonably safe.
Nov 19, 2009 at 10:59:05
Yeah, I’m on my own PC now and I too am disappointed to hear them claim perpetual motion’s possible with this car. High efficiency? Yes. Perpetual motion? No.
This could make a pretty nice hybrid platform though. Electric/ compressed air, or gas/ compressed air hybrids are easily possible. Series hybrid would be the best.
Nov 19, 2009 at 10:59:05
i agree, regenerative breaking is going to be great when it happens, and sooner or later it will probably be ubiquitous. However, the video suggests that perpetual motion is possible in these ‘air cars’. Idiotic.
Nov 19, 2009 at 10:59:05
I’m on a PC with no sound so I don’t know if he directly suggests perpetual motion. However, it is possible to recapture _some_ of the energy through regenerative braking. That means putting out 100 units of energy and getting back, say, 60 units when you brake instead of getting none back by simply converting it all to heat. The Toyota Prius, and some electric cars do this already. Their regen isn’t extremely efficient though. This could be better in the regen department.
Nov 19, 2009 at 10:59:05
A video about amazingly green, cheap and practical technology RUINED by an UNBELIEVABLY STUPID SUGGESTION ABOUT. Anyone who suggests perpetual motion is possible is missing a fundamental grasp of physics.
Nov 19, 2009 at 10:59:05
Actually the video DOES, rather stupidly, suggest perpetual motion. Guy Negre does not, so I don’t know where that idea came from. The actual tech is pretty good.
Nov 19, 2009 at 10:59:05
Quote “and stop keep trying to convince me, its people like you that makes youtube a shitty place to be!”
Bwahahaha I love it a 16 year old who doesn’t want anyone to spoil his delusions. Welcome to the real world! It is just lining up to rip you off and rob you blind. But hey no one can tell you the facts right, they just confuse you.
Bwahahahaha
Nov 19, 2009 at 10:59:05
and stop keep trying to convince me, its people like you that makes youtube a shitty place to be!
Nov 19, 2009 at 10:59:05
its not my fault you cant see that some people might like one thing, while you like another, and humans are capable of breaking laws of nature!
Nov 19, 2009 at 10:59:05
You idiot. THE TECHNOLOGY and air vehicles has been around since the 1900’s. Google the Douglas Self website
They are short range low power end of story. The technology is at it’s limits. It’s not my fault you don’t understand Boyles law and don’t want to learn.
Nov 19, 2009 at 10:59:05
You are an idiot. The very first cars were doing multi day trips of 100s of kilometers as soon as they were produced Hancocks steam wagons, Benz city to city journeys etc etc
Well if you can’t Google GAST and can’t use a calculator you can’t comment on this scam can you. People will never buy something that is only capable of a maximum of 20km and costs a fortune to fill up because it is so inefficient. Electric vehicles are MUCH more efficient that this puddle of crap.