TATA car tire - Guy Negro

[elephant]

Logic, we do not breathe anything. While for a mechanism, if there is oil (inevitable with screw compressors), that's good.

(whatever: this oil will end up in the atmosphere)

[raymon]

To calculate the inflation price, do not look at the inflation price of the diving cylinders because here we pay a special service but look at the performance of a compressor and the electricity tariff.

.

So 0,002 * 300 * 90 or € 54!

€ 54! And for what autonomy?

[Gaston]

To calculate the inflation price, do not look at the inflation price of the diving cylinders because here we pay a special service but look at the performance of a compressor and the electricity tariff.

Exactly: the efficiency of a very good compressor capable of producing 300 bar hardly exceeds 50%.

To store around ten kWh in a compressed air tank, it is therefore necessary to consume 20 kWh of electricity, or a little more than € 2 at the "normal" rate in France.

How many km can the compressed air car travel with 10 kWh?
Assuming very good engine performance (to check...), we can hope to reach 80 Wh / km (a heavier electric car is on average 150 Wh / km and a lighter electric scooter at 50 Wh / km).

With these optimistic hypotheses, 2 € would then cover 125 km ...
We stay far enough from the 1,5 € for 300 km announced

[elephant]

Thank you Gaston, you are answering the question I was about to ask.

In terms of price, you advertise single to double, but let's not forget:
these are Indian prices and I imagine very well solar stations, more difficult to operate in Belgium, for example

Let us not forget: these vehicles are light, limited front surface, limited top speed, no consumption in idle.

Obviously, let's not be fooled by the enthusiastic speeches of journalists: this vehicle does not drive in the air, but in electricity, possibly solar. Air is a means of storage, cheaper than a battery and this storage device ages better than a battery (and cheerfully supports partial recharges)

As for the low efficiency of the compressor, part of the dissipated energy can be transformed into domestic hot water (in India) or even heating (with us) or hot air.

Of course, these vehicles do not correspond to our way of life, but I will see them very quickly in Italian cities, for example.

We live in a world which increasingly supports diversity and technological complexity: solutions which would have seemed "baroque" in 1970 may meet part of the market's needs.

[dede2002]

Since the exhaust comes out very cold, the engine efficiency could exceed 100%, it can influence the calculation of the range ...?

[Leo Maximus]

To calculate the inflation price, do not look at the inflation price of the diving cylinders because here we pay a special service but look at the performance of a compressor and the electricity tariff.

Of course ! This is an invoiced price, of course.

But a gas station selling compressed air will also sell it on invoice.

[Leo Maximus]

To calculate the inflation price, do not look at the inflation price of the diving cylinders because here we pay a special service but look at the performance of a compressor and the electricity tariff.

Exactly: the efficiency of a very good compressor capable of producing 300 bar hardly exceeds 50%.

To store around ten kWh in a compressed air tank, it is therefore necessary to consume 20 kWh of electricity, or a little more than € 2 at the "normal" rate in France.

How many km can the compressed air car travel with 10 kWh?
Assuming very good engine performance (to check...), we can hope to reach 80 Wh / km (a heavier electric car is on average 150 Wh / km and a lighter electric scooter at 50 Wh / km).

With these optimistic hypotheses, 2 € would then cover 125 km ...
We stay far enough from the 1,5 € for 300 km announced

Well seen.

Compressed air is widely used in industry. We fight against waste because compressed air is very expensive, it is a luxury.

[Leo Maximus]

... these are Indian prices ...

In India ? Why in India?

The only trace that there is on the site of Tata Motors it is a press release dating from 2007:

http://www.tatamotors.com/media/press-r ... php?id=750

On the Tata site, there is absolutely nothing about the compressed air car:

http://www.tatamotors.com/

[Leo Maximus]

TATA's compressed air car licensed by MDI / Guy Nègre is called the "OneCAT".

When you do a search with "OneCAT" or "One CAT" on the TATA Motors site, this is what you get:



No result…

Was it wind?

[Gaston]

No result…

Was it wind?

As I said, the initial message is just a copy and paste of a message from June 2012, so it's unlikely that there will be anything new ...