[X] My Assistant

[RNeuhaus]

About the oil replacemet. The vehicles, train, boats, industry and house have their alternative energy different than oil. Now I see the airplane has no easy replacement. I don't imagine the future planes will be flying with hydrogen and oxigen liquids since they are very expensive.

Will we be traveling in a super fast trains to replace the airplanes....

Rodolfo

[Rakhir]

About the oil replacemet. The vehicles, train, boats, industry and house have their alternative energy different than oil. Now I see the airplane has no easy replacement.  I don't imagine the future planes will be flying with hydrogen and oxigen liquids since they are very expensive.

Will we be traveling in a super fast trains to replace the airplanes....

Rodolfo

Yes, super fast trains using magnetic levitation in vacuum tunnels would be a good alternative. At least for continents and small seas.

Rakhir.

[Toma B]

About the oil replacemet. The vehicles, train, boats, industry and house have their alternative energy different than oil. Now I see the airplane has no easy replacement.  I don't imagine the future planes will be flying with hydrogen and oxigen liquids since they are very expensive.

Will we be traveling in a super fast trains to replace the airplanes....

Rodolfo

It is not just OIL that runs out...Oil is just the most important to our society now...
Will we be traveling AT ALL and where?Tourism is one of the first things that will die out without cheap oil (...energy...)...

I'm hoping there will be enough electricity to turn-on my computer...That's my way of traveling around the world instantly...

[Rakhir]

It is not just OIL that runs out...Oil is just the most important to our society now...
Will we be traveling AT ALL and where?Tourism is one of the first things that will die out without cheap oil (...energy...)...

I'm hoping there will be enough electricity to turn-on my computer...That's my  way of traveling around the world instantly...

You should be able to travel by train when oil reserves will be worked out.
See "World's First Biogas Train Makes Maiden Voyage In Sweden".
http://www.terradaily.com/news/energy-tech-05zzzzzzzq.html

Maybe with some technological improvements (engine performance, lightweight structure, ...) you should even be able to travel by plane using biogas.

Rakhir

[abalone]

"World's First Biogas Train Makes Maiden Voyage In Sweden".

Is this internally produced or must the train stop for refueling?

[Rakhir]

Is this internally produced or must the train stop for refueling?

From the article "The train is equipped with 11 canisters containing enough gas to run for 600 kilometers (375 miles) before needing a refill."

Biogas production is a slow process which requires large quantities of plants and/or animal waste.
Internal production should not be possible.

Rakhir

[abalone]

From the article "The train is equipped with 11 canisters containing enough gas to run for 600 kilometers (375 miles) before needing a refill."

Biogas production is a slow process which requires large quantities of plants and/or animal waste.
Internal production should not be possible.

Rakhir

I was not quite sure about the Swedish diet.

[RNeuhaus]

Another good news, the Peruvian train company has replaced the diesel locomotive for natural gas. This train carry one canister with many cylinders of gas. This canister gas cargo permit the train to travel from Lima to mining sities and be back (400 km total distance) after climbing from the sea level to above than 4,800 m.s.n.m. These train bring minerals from Andean mountain to coast where is the harbor.

The other program is that two bus company has already been testing gas as fuel as a replacmenent to diesel gas. Up to now, there are good results, lots of saving of money due to cheaper and cleaner fuel. The company is happy with the results and will replace the gas to all fleet of diesel bus.

Rodolfo

[Rakhir]

The other program is that two bus company has already been testing (natural) gas as fuel as a replacmenent to diesel gas.
Rodolfo

Replacing diesel engines by natural gas engines can perhaps reduce the emission of carbon dioxid but natural gas is not a renewable energy. Indeed, it is extracted from underground reserves like oil.

Only biogas, produced from dead plants and animals is a renewable source of gas.

Biogas is already used on a wide range in transports in some countries like in Sweden where they have 779 biogas buses and more than 4,500 cars that run on a mixture of petrol and either biogas or natural gas.

Rakhir

[Guest_Richard Trigaux_*]

Replacing diesel engines by natural gas engines can perhaps reduce the emission of carbon dioxid but natural gas is not a renewable energy. Indeed, it is extracted from underground reserves like oil.

Only biogas, produced from dead plants and animals is a renewable source of gas.

Biogas is already used on a wide range in transports in some countries like in Sweden where they have 779 biogas buses and more than 4,500 cars that run on a mixture of petrol and either biogas or natural gas.

Rakhir

Natural gaz (methane) produces less carbon dioxyd than fuel, because of its formula (CH4) which contains two times more hydrogen than gazoline, kerozene, fuel etc CH2n So at a first step it is good, but in the long run it is only eluding the term for some years.

Today huge quantities of methane are burned just when getting out of oil wells (there are alway a small quatity of methane in oil).

In a second step, methane and oil could be cracked to produce hydrogen, the carbon fraction being stockpiled under the form of tar, or reinjected in the wells. Also there are large reserves of sour gas (containing hydrogen sulfide) which can be used for this purpose.

But ultimately only renewable sources of gas can be envisioned, and the best moment to do somehing urgent is alway "today".
-using the cellulosis fraction of plants is much more efficient than using vegetable oil or manure gas. Cellulosis can be easily converted to alcool, and from there to all the fuels and oil industry products, plastics, dyes, medecines, etc.
-hydrogen can be produced in solar furnaces with cracking of water (the process runs at 950°C and uses a chemical cycle based on SO2, the patent is owned by the french CEA). This hydrogen can be then made to reach with CO2 and converted to classical fuels and oil products.

-To give an order of magnitude, if we cover the ballast of a railway with photovoltaic cells we can produce today (even assuming they have a poor yeld) we can make run several large trains a day.

[RNeuhaus]

Very interesting articles. Now I see the difference between biogas and natural gas. Another article that I have read recently is that a Colombian company has launched a new product: fuel gasoline of 84 and 90 octanes is mixed with etanol (bio) with the proportion of 90-10% respectively. So its sugar industry will increase the cultivate area to satisfy this demand. Peru is also following to Colombian's experience.

Rodolfo

[Guest_Richard Trigaux_*]

Now I see the difference between biogas and natural gas.

Rodolfo

Biogas is usually methane, and it produces exactly the same quantity of carbon dioxyd than natural gaz (methane). But, as biogas is just part of the general atmospheric carbon cycle, it does not raise issues of increasing carbon dioxid in the air: it just replaces what was removed by plants (or, sait otherwise, it would come back to atmosphere sooner or later).

Natural gaz on the countrary ADDS carbon dioxyd to the overall quantity already present in the cycle. It is a lesser evil compared to fuel, and still worse coal, but it is still an evil. The only clean way to use natural gaz would be to use the hydrogen fraction, but we have still the inconvenience of being a non-renewable resource.

[Rakhir]

An interesting article about biofuels for transport (sept 2005).

http://www.oecdobserver.org/news/fullstory..._transport.html

Extracts from this article :
"Recent projections suggest that ethanol could represent up to 5% of the world’s transport fuel by 2010.

The production potential, cost and the environmental impacts of producing ethanol, biodiesel and other liquid and gaseous fuels are still uncertain.

Currently leading the way in consumption of ethanol for transport are the United States and Brazil. Nonetheless, in the United States, ethanol represents less than 2% of transport fuel; but in Brazil it now accounts for well over 30% of motor fuel demand.

From a greenhouse gas point of view, cellulosic ethanol is good news, since it is nearly carbon-neutral.

It is in the developing world that the outlook for production of biofuels appears most promising. The cost of producing ethanol from sugar cane in Brazil is now close to the country’s cost of gasoline on a volume basis."

Rakhir

[Guest_PhilCo126_*]

We went from Wood to Coal to Oil ... we'll go on to something else, don't worry ... Lobbyists can't convince governments to use fossil fuels when we'll ran out of those fuels...

[Chmee]

B)-->

Some more bad news!!!

Climate warning as Siberia melts

Is there anybody who thinks there is way out of these "Peak Oil" , "Global warming" , "Polution" problems???

Is there any hope????
[/quote]

Yes, its called Nuclear Power.