--- Michel > The energy balance for 300 L at 300 bars is as follows: > At expansion time: > In: 3 kWh compressed air intrinsic energy + 9 kWh > heat from ambient
> Out: 12 kWh mechanical Yes Michel, and even that low number assumes that it all can be used, which it cannot; but you have not been following (more likely refusing to believe) the gist of the prior thread on this .... .... which is simply the fact that this calculated limitation you studiously and accurately document above does NOT seem to be what is happening in ACTUAL practice. ... if we chose to believe the dozens of news stories and eye-witness accounts. Something else must be going on; significantly over and above the naive figures you are using: QUOTE: Its mileage is about double that of the most advanced electric car (200 to 300 km or 10 hours of driving), a factor which makes a perfect choice in cities where the 80% of motorists drive at less than 60Km. The car has a top speed of 105 kmph. http://trak.in/tags/business/2008/07/01/tata-motors-air-car-minicat/ OK how do you get 300 km of actual driving distance out of 12 kW mechanical? Short answer: you don't. If you were going 100 kmph that would imply about 20 kW of draw for a tiny car and for this van it would be more like 30. So to go the 300 km of travel the energy would need to be expended in the amount of ~100 kWhr, which is approximately 8 time more than you suggest is available from the air. That is one of the reasons why I consumed so much bandwidth in the previous posts to make the point that there is a very good case here for substantial OU (COP=8). You may not want to believe that, but what other choice do we have other than complete fraud ? Well, there is one, sadly which is not total fraud but close. My (wishful) suggestion was that it could be the result of ZPE coherence via double phase-change - but we also know that the vehicle does carry a small amount of gasoline for startup; and that the company could be (fraudulently) basing the surprisingly high mileage in these reports on using all of that gasoline, which I believe is no more than 3 liters. Even then (and yes that is more likely to be the true situation) it is a case for celebration by some of us, as it still disruptive to normal driving assumptions. 100 km per liter is fantastic, but if that is how they get it, then the company should be more forthcoming on that *important detail.* But needless to say- as good as 100 km/l sounds (240 mpg) it is not so much a cause for celebration (on some alternative energy fori) as if there were real ZPE coherence. I might even have to splurge on a case of that fine French bubble Veuve Clicquot, if it were not due to the gasoline. Jones
