will oil run out when I Am alive?
Discussion
GTIR said:
thinfourth2 said:
Big boats otherwise known as ships are actually hugely economical so they will carry on using oil for a very long time
I was under the impression that all engined sea going vessels are extremely un-economical with regards to MPG when compared to road going vehicles?Anyone?
Emma mearsk caries 14,000 TEUs and uses about 300 tons per day of fuel (as a guess) does 25knots
300 tons at 0.95 dentsity is 315,000 litres = 69,300 gallons
25 knots = 28mph x 24 hours = 672 miles
which gives 0.0097 mpg which is really really bad
A lorry carries 2 TEUS and does 5 mpg
so to carry 14,000 TEU you would need 7000 lorries which gives 0.0007 mpg
So a ship is about 14 times better then a lorry
When you look at supertankers which are 300,000 tons and use a mere 50tons a day are very impressive per ton moved
GTIR said:
I was under the impression that all engined sea going vessels are extremely un-economical with regards to MPG when compared to road going vehicles?
Anyone?
Well, yeah, but a lorry carries 22 tonne. A very small ship carries 2000 tonne. The fuel used per tonne of load carries goes down with size. Hence why 100,000+hp engines are fairly common. They also use a cheap fuel, dirtier and heavier than diesel. Anyone?
thinfourth2 said:
GTIR said:
thinfourth2 said:
Big boats otherwise known as ships are actually hugely economical so they will carry on using oil for a very long time
I was under the impression that all engined sea going vessels are extremely un-economical with regards to MPG when compared to road going vehicles?Anyone?
Wiki: Cunard states that their liner, the RMS Queen Elizabeth 2, travels 49.5 feet per imperial gallon of diesel oil (3.32 m/L or 41.2 ft/US gal), and that it has a passenger capacity of 1777.[25] Thus carrying 1777 passengers we can calculate an efficiency of 16.7 passenger-miles per imperial gallon (16.9 L/100 p·km or 13.9 p·mpg–US).
Running out of fuel is going to effect life massively if they have nothing to replace it with. Be saying this for years the human race would have to take a step back. Travel commuting and just basic logistics would have to be reduced or stopped. Fingers crossed for Hydrogen. I don't think we could grow enough crops for fuel at the moment. We can't grow enough to feed the world.Fringers crossed for a fuel replacement.
Gazzas86 said:
thinfourth2 said:
GTIR said:
thinfourth2 said:
Big boats otherwise known as ships are actually hugely economical so they will carry on using oil for a very long time
I was under the impression that all engined sea going vessels are extremely un-economical with regards to MPG when compared to road going vehicles?Anyone?
Suppose it gets away with it by virtue of helping get more O&G to the surface
zcacogp said:
Eric Mc said:
Only four nuclear powered commercial cargo ships was ever built. The most famous was the SS Savannah.
Crumbs, Eric has made a (very minor) mistake! It's the N.S. Savannah. The S.S. Savannah looks like this:
And it was powered by (not surprisingly, given the appearance and the name) sail!
Oli.
hollydog said:
Running out of fuel is going to effect life massively if they have nothing to replace it with. Be saying this for years the human race would have to take a step back. Travel commuting and just basic logistics would have to be reduced or stopped. Fingers crossed for Hydrogen. I don't think we could grow enough crops for fuel at the moment. We can't grow enough to feed the world.Fringers crossed for a fuel replacement.
If we want to replace fossil fuel with other energy sources and we give ourselves 25 years to do it we need to build:2 1/2 conventional nuclear reactors every week.
1 3gw wind turbine every 3 minutes.
250m2 of solar panelling every second.
4 olympic pools of bacteria for biofuel every second.
All this for the next 25 years, and not allowing for population growth.
Famous Graham said:
zcacogp said:
Eric Mc said:
Only four nuclear powered commercial cargo ships was ever built. The most famous was the SS Savannah.
Crumbs, Eric has made a (very minor) mistake! It's the N.S. Savannah. The S.S. Savannah looks like this:
And it was powered by (not surprisingly, given the appearance and the name) sail!
Oli.
Puggit said:
According to the green brigade when I was a child, we've already run out...
When I was studying GCSE Geography in 1994 they were telling us that oil would run out by 2005, that the South of England would be underwater due to rising sea levels resulting in Birmingham-on-sea, and that we'd have a Mediterranean climate in the UK with tropical diseases causing widespread death 
It's a pity that religous and political nonsense makes its way into the classroom 
OP, you'll find that in 60 years your children and their children will be asking you the same question and you'll be telling them there's more than enough and that you had the same doom mongering stories when you were younger.
If its any help, diesel IC engines are expected to continue to be the worlds prime movers right up to the next century. Nothing currently has the energy density, power or flexibility of a big diesel and ease of fuel storage (diesel is relatively inert, wont really ignite with a naked flame, isnt pressurised etc) is another bonus. The off highway lot are fully expecting to continue using diesel for up to 2070 and beyond.
I'm guessing they expect it still to be commericially viable over alternate tech like hydrogen, battery power or some kind of nuclear power.
I'm guessing they expect it still to be commericially viable over alternate tech like hydrogen, battery power or some kind of nuclear power.
Electric ships would be easy enough. Most modern ships these days are diesel-electric, so just replace the diesel bit with fuel cells or even batteries and away you go.
Also an electric airliner is entirely possible once the battery energy storage density nut is cracked, however we may see fuel cell planes in the the interim.
Where is all the power going to come from for the hydrogen or to charge the batteries? Nuclear power built in non earthquake zones.
Also an electric airliner is entirely possible once the battery energy storage density nut is cracked, however we may see fuel cell planes in the the interim.
Where is all the power going to come from for the hydrogen or to charge the batteries? Nuclear power built in non earthquake zones.
dvs_dave said:
Electric ships would be easy enough. Most modern ships these days are diesel-electric, so just replace the diesel bit with fuel cells or even batteries and away you go.
Or sails of course.It's interesting to ponder how civilisation/society would have eveolved if there were no vast deposits of old trees. Would we have developed other sources sooner, or still be on horseback?
Bedazzled said:
dvs_dave said:
Also an electric airliner is entirely possible once the battery energy storage density nut is cracked, however we may see fuel cell planes in the the interim.
I reckon airships might be making a comeback, there are some pretty cool designs for hybrid airships being tested at the moment. In the longer term, how about wireless electric for cars and aircraft? That would save them lugging all those heavy batteries about. Simpo Two said:
Or sails of course.
It's interesting to ponder how civilisation/society would have eveolved if there were no vast deposits of old trees. Would we have developed other sources sooner, or still be on horseback?
Wood gas would be a potential solution. The practicalities of it would be a bit mad though.It's interesting to ponder how civilisation/society would have eveolved if there were no vast deposits of old trees. Would we have developed other sources sooner, or still be on horseback?
Chances are we have reached peak oil, but not Peak Oil, in a manner of speaking. We know there is more oil to be pumped, but it's in difficult places and more expensive to get to. For example, the oil shales in America weren't financially viable until the oil price got above a certain level. As the price of crude goes up, more and more difficult reserves become viable. It's just that at those higher prices it's better economically to burn the poor.
Edited by davepoth on Tuesday 6th March 01:25
Bedazzled said:
dvs_dave said:
Also an electric airliner is entirely possible once the battery energy storage density nut is cracked, however we may see fuel cell planes in the the interim.
I reckon airships might be making a comeback, there are some pretty cool designs for hybrid airships being tested at the moment. In the longer term, how about wireless electric for cars and aircraft? That would save them lugging all those heavy batteries about. Gassing Station | Science! | Top of Page | What's New | My Stuff