alt.energy.renewable

"Vaughn Simon" wrote in message
news:ROgDj.30780$cQ1.284@bgtnsc04-news.ops.worldnet.att.net...
>
> "ecarecar" wrote in message
> news:zpCdneQ4L7RED0DanZ2dnUVZ_hGdnZ2d@centurytel.net...
>> The air that is compressed and put into the storage tank that, I assume,
>> is mounted in the vehicle, from where does this air come?
>>
>> Is the air modified in any fashion before it is put in the tank?
>> Is there any water vapor in the air?
>>
>> What is the volume of the expansion space at TDC (Top Dead Center)?
>> What is the volume of the expansion space at BDC (Bottom Dead Center)?
>>
>> What is the temperature of the air at TDC?
>> What is the temperature of the air at BDC?
>
> Also, is it a single stage engine or multiple expansion? Multiple
> expansion with interstage heat exchangers would be the more efficient
> design, but multiple stages would quickly increase the size, complexity &
> cost.
>
> Last I knew, MD was not answering any questions about the design of their
> engines. Probably because that would be the safest way to avoid
> embarrassing questions.

Are you saying after all this time the cars have been running, the engines
don't work? That means a very large organisation like Tata must be stupid.
So must many other organisations who have looked at it.

If I had an engine like theirs I would not tell everyone how it works in
detail.