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petrol running out and alternatives?
02GF74 - 8/7/08 at 09:11 AM

all this talk of petrol running out and how electric cars are the future, why isn't alcohol distilled from sugar not being touted as a workable alternative?

growing the sugar (beet or cane) is non polluting and a renewable resource as long as the sun shines.

but the biggest advantage is that existing car engine technology can be used with some minor(?) modificationt to run on alcohol (they run VW beetles on alcohol or maybe alcohol mix in Brazil) - surely cheaper and more environmentally friendly than bulding new electric cars?

(mebbe a good time to buy shares in Tate and Lyle).


iscmatt - 8/7/08 at 09:16 AM

quote:
Originally posted by 02GF74
all this talk of petrol running out and how electric cars are the future, why isn't alcohol distilled from sugar not being touted as a workable alternative?

growing the sugar (beet or cane) is non polluting and a renewable resource as long as the sun shines.





Nothing is none polluting unless you are planting and picking all this crop by hand... (tractors)

People always seem to get this wrong - its the same with cars, it may run 0% emmissions but its not pollutant free - the factory it was built in etc

All comments light hearted - thank you


nib1980 - 8/7/08 at 09:20 AM

quote:
Originally posted by 02GF74
all this talk of petrol running out and how electric cars are the future, why isn't alcohol distilled from sugar not being touted as a workable alternative?

growing the sugar (beet or cane) is non polluting and a renewable resource as long as the sun shines.

but the biggest advantage is that existing car engine technology can be used with some minor(?) modificationt to run on alcohol (they run VW beetles on alcohol or maybe alcohol mix in Brazil) - surely cheaper and more environmentally friendly than bulding new electric cars?

(mebbe a good time to buy shares in Tate and Lyle).



and this is the reason that food crops are being massivley overpriced on world markets, and people in those countrys can't aford food now.

the only viable solution is Neuclear.


Discuss.........





.


SeaBass - 8/7/08 at 09:21 AM

Errrm... Call me stupid - but isn't that just exactly the Biofuel that is driving up food prices....


Dangle_kt - 8/7/08 at 09:22 AM

I thought petrol had just gone up in price... not ran out!

EeeK!


Mr Whippy - 8/7/08 at 09:26 AM

Buy a motor bike


smart51 - 8/7/08 at 09:29 AM

Theoretically, you could make EU farmers who have set asside their land and receive subsidies to use this land to grow biofuel crops. Use could make them use some of the biofuel to power their tractors and to power the plant that converts the bio matter to bio fuel. It wouldn't affect food prices or taxation.

The problem, I'm told, is that by the time you've harvested the crop, converted it to fuel and delivered it to filling stations, using the fuel to power the tractors and truck, there won't be much of your bio fuel left.


02GF74 - 8/7/08 at 09:34 AM

sorry - seems I didn't make my point clear.

whcih was instead of developing electic motor and building new cars with them, why is more effort done to convert existing engines to alcohol?

biofuel - that is diesetl type stuff? so what about the petrol engines?


splitrivet - 8/7/08 at 09:34 AM

Trouble is oils been so cheap for years (relatively, most of the cost to end users is tax) that nobody has had the forethought to come up with a viable alternative.
Cheers,
Bob


SeaBass - 8/7/08 at 09:36 AM

quote:
Originally posted by 02GF74
biofuel - that is diesetl type stuff? so what about the petrol engines?


Not quite...

quote:

Biofuel can be broadly defined as solid, liquid, or gas fuel derived from recently dead biological material, most commonly plants. This distinguishes it from fossil fuel, which is derived from long dead biological material.


wilkingj - 8/7/08 at 09:38 AM

quote:
Originally posted by nib1980
and this is the reason that food crops are being massivley overpriced on world markets, and people in those countrys can't aford food now.

the only viable solution is Neuclear.
Discuss.........


Welll err nuclear fuel requires energy to be procesed into a form that can be used in the reactors.
Also Can you see Nuclear powered Cars? not likely, as the potential for Terrorist Dirty Bombs then becomes enormous. The Gov'ts would never allow any fissile material into the hands of Joe public.

The answer is to slaughter Half the worlds population. Then there would be enough resources to go around.

The Main issue here is that there is a PLAGUE of PEOPLE on this planet.
Its gone from 4 Billion to 6 Billion in the 50 years that I have been here. That is an unsustainable expansion rate, and its begining to show.
Much as I dont like the Chinese (as its a Communist society) I have to admit, they are the ONLY ones who recognise the issue and are actually trying to do something about it. Perhaps not very well, or not the best way. BUT they ARE trying to do something about it. IMHO its Bonus points to the Chinese.

Everywhere else its GREED GREED GREED, more more more, me me me me, etc etc!!

This is why life is so stressed. (look at the problems in society etc etc) IMHO we are on a course of self-destruct. Maybe thats not such a bad thing.

If the worlds time scale was compressed into 24 hours, Man has been here for less than 30 seconds, and what a FU*K UP we are making of it. Despite our wonderous advances.


wilkingj - 8/7/08 at 09:40 AM

quote:
Originally posted by 02GF74
sorry - seems I didn't make my point clear.

why is more effort done to convert existing engines to alcohol?




I've already converted to Alchol...I'm on about 5 pints a night now!

hic... Burp


balidey - 8/7/08 at 09:42 AM

I live in the heart of the Fens, when I was at school my geography teacher was always going on about how the amount of sugar beet we produce in our area meant that in the next 20 years almost all cars in the UK would be running on fuel produced in our area from a by product of sugar production. We would be richer that the Saudis.

Unfortunatly thats not happened yet, and EU rules means that now beet production has almost stopped in our area, the sugar plants have shut down, we buy huge amounts of beet from abroad.

Looks like some trials are going to start soon about making some bio-fuel from beet.

What a wasted oportunity, this was 20 years ago and I doubt the viable alternative fuel will be around in the next 20 years.


02GF74 - 8/7/08 at 09:42 AM

quote:
Originally posted by wilkingj

The answer is to slaughter Half the worlds population. Then there would be enough resources to go around.

The Main issue here is that there is a PLAGUE of PEOPLE on this planet.
Its gone from 4 Billion to 6 Billion in the 50 years that I have been here. That is an unsustainable expansion rate, and its begining to show.


I heard that sometjhing like 30 % of people that have ever lived are alive right now!!

makes you wonder.


iscmatt - 8/7/08 at 09:59 AM

Quote: The Main issue here is that there is a PLAGUE of PEOPLE on this planet.


A superb point well put!!


Mr Whippy - 8/7/08 at 10:14 AM

quote:
Originally posted by Mr Whippy
quote:
Originally posted by iscmatt
Quote: The Main issue here is that there is a PLAGUE of PEOPLE on this planet.

A superb point well put!!


one 'man' who would agree with you -

Agent Smith: I'd like to share a revelation that I've had during my time here. It came to me when I tried to classify your species. I realized that you're not actually mammals. Every mammal on this planet instinctively develops a natural equilibrium with the surrounding environment, but you humans do not. You move to an area, and you multiply, and multiply, until every natural resource is consumed. The only way you can survive is to spread to another area. There is another organism on this planet that follows the same pattern. A virus. Human beings are a disease, a cancer of this planet, you are a plague, and we are the cure.



r1_pete - 8/7/08 at 10:15 AM

quote:
Originally posted by Mr Whippy
Buy a motor bike


And burn more rubber than petrol


Mr Whippy - 8/7/08 at 10:32 AM

I like this and I think it has a lot of potental --

230 MPG at a steady state of 55 MPH

http://www.aptera.com/details.php



[Edited on 8/7/08 by Mr Whippy]


Benzine - 8/7/08 at 11:12 AM

"We're a virus with shoes"

I'm interested in this:
http://news.nationalgeographic.com/news/2006/05/ethanol-1.html

Think how much grass there is growing everywhere, peoples gardens, 400,000 miles of British road verges. Doesn't need replanting either.

I don't understand the whole "it takes loads of energy to plant/harvest crops for ethanol" Run the machines on ethanol then (liquid sunlight)


Mr Whippy - 8/7/08 at 11:24 AM

quote:
Originally posted by Benzine

I don't understand the whole "it takes loads of energy to plant/harvest crops for ethanol" Run the machines on ethanol then (liquid sunlight)


good point, yeah there are quite a few new methods going around just now, some were in my Focus mag. At this rate petrol and crude oil may be replaced before the middle east has time to react, they'll be poverty stricken with Hummers


alistairolsen - 8/7/08 at 11:51 AM

nuclear electricity production, electrolytic hydrogen productiona dn fucl cell based transport IMO

Dont get me started on this countries setaside policies, or buying from abroad, or allowing our entire manufactuing industry to collapse, or the total loss of social conscience.

Oil was always going to get expensive, if anyone is to blame its the oil companies and the government






for selling it too cheaply in the past!


simoto - 8/7/08 at 11:53 AM

quote:
Originally posted by Mr Whippy
Buy a motor bike


Hes getting it lads, slowly.


nstrug - 8/7/08 at 12:18 PM

quote:
Originally posted by 02GF74
all this talk of petrol running out and how electric cars are the future, why isn't alcohol distilled from sugar not being touted as a workable alternative?

growing the sugar (beet or cane) is non polluting and a renewable resource as long as the sun shines.

but the biggest advantage is that existing car engine technology can be used with some minor(?) modificationt to run on alcohol (they run VW beetles on alcohol or maybe alcohol mix in Brazil) - surely cheaper and more environmentally friendly than bulding new electric cars?

(mebbe a good time to buy shares in Tate and Lyle).


This is being done already - they're called biofuels.. They are heavily used in South America (from sugar cane) and in the US (from corn syrup). Its basically a non-starter and only exists due to massive government subsidies.

The reasons why its a complete waste of time:-

1. Destruction of rainforest to plant biofuel crops releases more CO2 than you save by using biofuels.

2. Use of valuable farmland to produce biofuels causes food shortage.

And the killer:

3. Producing ethanol CONSUMES MORE ENERGY THAN THERE IS IN THE ETHANOL!!!

No. 3 is the reason why without government subsidies the whole ethanol-bandwagon will collapse. Oh, and of course the huge amount of energy used in distillation tends to come from non-renewable fossil fuel sources.

There is an alternative of course - nuclear power. Just two nuclear powerstations could produce all the hydrogen, or more realistically methanol, required to power all the UK's road vehicles.

The feedstocks would be water and atmospheric CO2.

Unfortunately, people have an irrational fear of nuclear power - they tend to ignore the fact that the fossil fuel industry directly kills thousands every year (mine accidents, rig accidents, powerplant accidents, lung disease) whereas the nuclear industry has killed 31 people since 1971 (the vast majority at Chernobyl).

Nick


saigonij - 8/7/08 at 12:26 PM

in all seriousness, i really think there should be a cull of humans. There are way too many of us on the planet and as someone else said, we are destroying it, abusing it, doing what we want with it.

the most intelligent spiecies on the planet - hardly. We are the most stupid animals on the planet..

also have you noticed the amount of "End of the world" disaster movies in the recent years - not only are we obssessed with destroying the planet, we are also dreaming about it too.

This planet is turning in to a S*ithole - what future do we really have to look forward to?

( sorry for anyone now thinking about killing themselves, although it would help the situation! ).... :-)


Benzine - 8/7/08 at 01:24 PM

quote:
Originally posted by nstrug

3. Producing ethanol CONSUMES MORE ENERGY THAN THERE IS IN THE ETHANOL!!!



http://www.wired.com/wired/archive/14.10/myths.html


smart51 - 8/7/08 at 02:24 PM

quote:
Originally posted by 02GF74
I heard that sometjhing like 30 % of people that have ever lived are alive right now!!


If the population of the world in 2000 was 6 billion and you assume that it grew by 7% every 20 years then the population of the world was 12 in about 3900 BC. Then the total number of people ever to have lived is 91,000,000,000. Therefore 1 in 15 people who have ever lived in the last 5900 years, or 6.5%, is alive now.

Of course, this is just fiction. Millions died in wars in the 20th century alone. Plenty used to die of starvation or disese. Until maybe 50 years ago, a high proportion died during birth, and their mothers.

Technology, medicen and food storage means more of us live long enough to have children of our own. We have naturally compensated by having fewer children each, even without laws telling us to.

The birth rate in europe now is less than 2 children per couple (per mother, strictly). European populations are only going up because we are steadily living longer. Once the death rate steadies, the population will fall. Even in countries like India, the birth rate is only a little above 2 per couple. The number of single children families in the UK is at an all time high. I was one of three, which was quite common in my generation. My mother was one of 6, which was not uncommon. One of my great grandparents was one of 13 births, only 6 of whom grew to be adults.

If we continue as we are, the world's population will peak in about 2075 according to the UN. then there'll be a slow contraction as the number of births continues between 1 and 2 per couple, but the deaths per couple remain at 2 out of 2.

[Edited on 8-7-2008 by smart51]


Liam - 8/7/08 at 03:44 PM

I take it all those ranting about the need for a large human cull aren't putting themselves or their families forwards? Back in reality we have to accept our growing population and come up with ways to support and/or regulate its growth!

Biofuels are a bit of a fad with dubious long term prospects imo. Another 'soundbite' not yet mentioned here is that apparently the damage to the environment from CO2 mitigated by replacing fossil fuels with biofuels is largely offset by damage from NO2 related to all the nitrogen fertiliser required to grow the biofuel crops. Seems like the biofuel bubble could be bursting already.

As has been mentioned above the best long term solution imo is nuclear - but fusion as opposed to fission. No pollution, no possibility for large accidents and no long-life radioactive waste - in fact almost no radioactive waste at all. I went round JET in Culham with work last year and basically they're quietly getting on with solving all the scientific and engineering problems related to producing a commercial fusion power plant. Will be a few decades yet though at current funding levels. Good luck to them I say (and to hell with the ignorant short-sighted green brigade who'd prevent money being spent on this kind of research if they could, whilst living comfortably off the back of people who aren't afraid of technological innovation).



Liam

[Edited on 8/7/08 by Liam]


nstrug - 8/7/08 at 04:55 PM

quote:
Originally posted by Benzine

http://www.wired.com/wired/archive/14.10/myths.html


Ah the great Vinod Khosla, the venture capitalist who is most heavily invested in US ethanol production.

Even his own figures show a maximum of 50% margin - so for every 1000 tonnes of corn/sugarcane you harvest, 400 tonnes will be used in turning the remainder into ethanol - hardly a great use of resources.

Personally, my own reasons for rejecting biofuels are purely selfish - I'd like my kids to experience rainforests and countryside in the way I've been able to, rather than the entire planet being covered in oil palm and sugar cane.

Nick


nstrug - 8/7/08 at 05:01 PM

quote:

As has been mentioned above the best long term solution imo is nuclear - but fusion as opposed to fission. No pollution, no possibility for large accidents and no long-life radioactive waste - in fact almost no radioactive waste at all. I went round JET in Culham with work last year and basically they're quietly getting on with solving all the scientific and engineering problems related to producing a commercial fusion power plant. Will be a few decades yet though at current funding levels. Good luck to them I say (and to hell with the ignorant short-sighted green brigade who'd prevent money being spent on this kind of research if they could, whilst living comfortably off the back of people who aren't afraid of technological innovation).





The ITER project currently being built in France is the follow-on to JET and will be the first fusion reactor to produce more energy than it produces - amazing stuff - http://www.iter.org

But don't write off fission just yet - designs like pebble bed reactors and the energy amplifier are also very exciting.

Nick


MikeR - 8/7/08 at 06:25 PM

i'm firmly in the nuclear group - so much so my gf had to suffer me arguing with a greenpeace person at glasto.

They wanted me to sign a "no more coal power stations" campagain. I refused until i was told exactly what i'd be signing up for as greenpeace refuse to accept nuclear and they're not doing that in my name.

Anyway, we had a long 'discussion' (i was drunk, she was 70). She believes society is starting to crumble and wave power is the future. I asked her what evidence there was wave power worked - she had none (as far as i'm aware the three major trials started recently, two have broken and one isn't generating anything like the eleccy they expected). She refused to consider anything else but wave - with ZERO evidence it works & kept asking me to sign the petition whilst telling me society was knackered and we're heading to chaos .......... so why sign the petition, its not as tho they'll get built as in 10 years we'll be every man for himself.

I despair!


Mr Whippy - 9/7/08 at 09:05 AM

quote:
Originally posted by MikeR

Anyway, we had a long 'discussion' (i was drunk, she was 70).


your gf is 70...how old are you?

[Edited on 9/7/08 by Mr Whippy]