Exploring Hydrocarbon Depletion
pstarr wrote:vtsnowedin wrote:BahamasEd wrote:And yet not one freeway is without it's full compliment of traffic or one plane grounded for lack of fuel.
Yes, as long as you're one of the 1.5 billion that can afford it, not so much for the other 6 billion
They sold twenty million cars in China last year to the USA 7.5 million.
Bought by remaining 20 million wealthy. Pity the other 5.980 billion
shortonoil wrote:Using oil as a proxy, our efficiency is 14,000 BTU out of 140,000. 10%. But of that 140,000, 40,600 BTU is given up as waste heat, and there is nothing that can be done about it. Thermodynamics tells us that is best that can be done in this universe. Converting energy into work is not easy.
In other words, I don't have a clue as to how Arnoux came up with 14%, its 10.
shortonoil wrote:"Thanks Babydoomer"
Probably, but you have to pay for the waste heat just like everything else. It is part of the unavoidable operational cost. If there was such a thing as free waste heat we would be "Fat City".
Yoshua wrote:Fossil fuels comes as solids (coal), liquids (oil) and gases (nat gas). If the breakeven price for a barrel of oil is $50 and the producer receives $50 per barrel, then the oil producer might not even produce any net energy at all, the oil producer might just convert solids and gases into liquids. Even if the net energy from oil production drops to zero, we could still have a lot of oil to burn, as long as we can use coal and nat gas to produce oil.
BP claims that they use 10% of the energy in a barrel of oil to produce a barrel of oil in their upstream and downstream operations, but that number is just for the energy needed to run the machines. To produce the machines (drill rigs, pumps, pines, refineries, tankers, trucks, gas stations) coal might have been used primarily.
And still the infrastructure is needed for BP to run their operations... and doesn't build that... but someone has to.
And then BP also needs an educated workforce, who needs housing and food... and coffee... and it goes on...
And yet not one freeway is without it's full compliment of traffic or one plane grounded for lack of fuel.
Users browsing this forum: No registered users and 7 guests