Peugeot unveils petrol hybrid using compressed air

Jan 22, 2013
French carmaker PSA Peugeot Citroen unveiled Tuesday a petrol hybrid engine that stores energy using compressed air which it hopes will be a game-changing technology to improve energy efficiency.

French carmaker PSA Peugeot Citroen unveiled Tuesday a petrol hybrid engine that stores energy using compressed air which it hopes will be a game-changing technology to improve energy efficiency.

The engine, which allows up to 80 percent driving on compressed air in cities, offers of 2.9 litres of fuel per 100 kilometres (81 ) and emits just 69 grammes of carbon dioxide per kilometre.

"This breakthrough technology ... represents a key step towards the two litre per hundred kilometre car by 2020," chief executive Philippe Varin said at a press conference unveiling a series of new technologies.

Peugeot said what it calls Hybrid Air technology can be fit into small to midsize cars without any loss to storage space.

Whereas conventional hybrids use electric batteries to store energy, the compressed air system "allows the recuperation of energy from braking and slowing down," said the head of the Hybrid Air project, Karim Mokaddem.

The project, partially financed by the French state, also includes German auto parts specialist Bosch and Faurecia, a car parts firm controlled by Peugeot.

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User comments : 19

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Shootist
1.5 / 5 (14) Jan 22, 2013


All the carbon
locked away
coal and oil
and lime today
were once a gas
in our air.

It doesn't matter
fossil or
conterperaire

Carbon is life
ValeriaT
1.9 / 5 (8) Jan 22, 2013
The recuperation of energy in form of compressed air is one of the poorest ways, how to accumulate energy due the Carnot cycle. The air gets heated during compression and this heat is lost as a waste energy.
VendicarD
2.5 / 5 (11) Jan 22, 2013
Then please spend your day breathing CO.

"Carbon is life" - ShooTard

http://www.youtub...3lhtpEFo
JRi
not rated yet Jan 22, 2013
Interesting concept. However, I'm a bit concerned about what may happen to those high pressure vessels if the car is in an accident.
hemitite
1.8 / 5 (4) Jan 22, 2013

In burning gas that heats its fuel to burn,
And so release the pent up light of days,
Long past in coal or just this summer's fern
That strayed upon this earth in myriad ways.
The heat and light that on this world was shed,
All takes its leave at last back to the sky,
As bodies burn the stuff on which they fed,
And autumn bonfires flame on branches dry.
So in the very furnace of our star,
Is made the stuff that gives us light and life,
And that we're not so close or not too far,
Is one more way we're balanced on a knife:
The joy of life that greens this earth,
Was willed in fire at its birth.
Sean_W
1.4 / 5 (9) Jan 22, 2013
Why is the "car" shaped like Anubis after a yoga accident. And why can't they turn on some of their mercury filled lightbulbs so we gan get a better look at the thing?
jonnyboy
1 / 5 (6) Jan 22, 2013
keep hiding Scott.
ormondotvos
3.3 / 5 (3) Jan 22, 2013
Nice combination of technologies. The key question is whether the storage capacity in Kwh/kg is higher for compressed air than batteries. Also expense. Air motors are pretty standard technology. Chances are the compressed air containers will leak ... air! Not fire, or chemicals, or fuel. Just ... air.
Raygunner
1 / 5 (3) Jan 22, 2013
JRi -

SSSSSSSSSSSSSSSSssssssssss...........
djr
3 / 5 (2) Jan 22, 2013
This looks very exciting - the big problem with electrics and hybrids is the cost of the batteries - if this can solve that problem - they have a winner. Actually this is very much in the design phase - so how it will finally work out remains to be seen. It is not scheduled to be out until at least 2016 - so still has a long way to go. This article has some more details. - http://www.dailym...air.html
Telekinetic
1 / 5 (5) Jan 23, 2013
I've been wondering what happened to the French company MDI's entry from a few years ago. Maybe Peugeot had deeper pockets to bring it to a competitive level as it would have to perform as well as any other tech to really gain traction in the marketplace. It could be the greenest choice of all of the contenders and even make it to the States if it can survive sabotage.

http://positivene...-spain/.
Tristan
1 / 5 (1) Jan 23, 2013
I don't think this technology is intended to function as a main energy source, it's more of an energy saving system that limits the amount of energy lost when braking, much like the flywheel/battery designs that were being touted a few years ago (and are perhaps still around).
visualhawk
1.7 / 5 (6) Jan 23, 2013
At last - something really 'green'. A battery Hybrid will never see my money as it damages the environment more than it saves it. A compressed air alternative - now that makes sense - even if less efficient.

And there is tons of wasted heat energy available to heat it up upon decompression - so is it all that less efficient if it uses the wasted combustion heat ?

The more I read this the more I want a car using this technology.
PPihkala
3 / 5 (2) Jan 23, 2013
Why is the "car" shaped like Anubis after a yoga accident.

That is the Peugeot car maker's logo.
Shootist
1 / 5 (6) Jan 27, 2013
Then please spend your day breathing CO.

"Carbon is life" - ShooTard

http://www.youtub...3lhtpEFo


How's that treatment for VD coming, btw? Still penicillin resistant, I see.
Skepticus
1 / 5 (4) Jan 28, 2013
The recuperation of energy in form of compressed air is one of the poorest ways, how to accumulate energy due the Carnot cycle. The air gets heated during compression and this heat is lost as a waste energy.

Air motor cools down when compressed air is expanded doing work. Then if you have a system of heat pipes and thermal salts storage of the heat generated during storage compression, that heat would be reused to heat up the air going to the motor increasing its efficiency, so not much energy will be lost. The main detractors will be added weigh and complexity, and have to be balanced from the efficiency gains.
antialias_physorg
3 / 5 (2) Jan 28, 2013
I'm a bit concerned about what may happen to those high pressure vessels if the car is in an accident.

Same that happens to other pressure vessels. They have rated break points.
wudwurks
1 / 5 (3) Jan 28, 2013
I disagree with the comment relating to the Carnot cycle. Of course compressing air generates heat, but there is absolutely no reason to loose this heat as it can be recycled into the cabin as heat, and to pre-heat fuel prior to combustion. I applaud any research that improves our mpg and the through life costing of a compressed air system is BOUND to be LESS that that for lithium cells!!
wud-wurks
Olivia
1 / 5 (3) Jan 29, 2013
Old tech rebranded. Scuderi engine has been invented like forever. I guess Scuderi is in work with Peugoet.

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