First of all, I'm and new and big fan of Dr. Martenson. Great work, Dr. M.! I learned A LOT.
I viewed "the 17s" today and was shocked. Though I'm quite familiar with Peak Oil, seeing it in those terms ruined my day. However, the US is blessed with abundant Natural Gas, as we've come to learn in the past 2 years or so. Compressed Natural Gas cars are already in use in serious volumes world-wide. Honda makes one for sale to the public. As per Damnthematrix's post, it doesn't sound like tractor trailers are good for CNG, but the CNG family sedan looks like something we can live with. That should take a lot of wind out of the Peak Oil devastation. Sure, P.O. is going to hurt real bad, and put mucho pressure on the corrupted financial system, but with natural gas, at least it's not the end of the world as we know it. Any thoughts?
Really good info.
CNG is simply compressed natural gas. Gas stored in a tank at normal temp but at higher pressures (2500-3500 psig). LNG is at very low pressure but at extremely low temps (-162 C or -260). A cryogenic device is needed to super cool the gas. For this reason LNG is not practical in small vehicles. It is used to ship NG long distances. CNGs volumetric energy is approx 42% of LNG and 25% of diesel.
I too wonder about the feasibility of CNG for semis. It does not seem to be a good fit to me. Part of what seems to be missing from the equation is what can be done to replace the need for semis. The rail industry for instance is much more efficient for moving goods long distances.
I do believe that CNG is a good fit for personal transportation as a transition fuel. I just think we are going to be doing much less personal travel as the future moves forward.
These and many other items must be answered. I think PO is going to hurt a little more then the average person now realizes.
We are omitting perhaps the biggest advantage of NG vehicles – the cost of developing methane (the main component of NG) from renewable biomass sources is FAR lower than other biofuel alternatives such as ethanol, biodiesel, biobutanol, or even methanol. It is also far more efficient; for a given amount of biomass, you get about twice the energetic content in methane fuel compared with producing ethanol.The optimal vehicle in the future would be a PHEV capable of both NG and gasoline fueling. This allows the vehicle to play with the existing gasoline infrastructure, and provide additional range.
Switching to LNG or CNG is a viable plan, especially for long term resource consumption wise. However, he feasibility of implementing it in the current economy might not be the best. The will encounter much opposition from truckers and companies who rely heavily on petroleum, as well as the costs involved with implementing a large scale change.
It's kind a interesting topic. Well everyday it has been part of people lives to hear the same news of increasing gas price. With the unstopping war happening in the different part of the world particularly in the Middle East that brought to us the crude oil. Well seems the fuel economy deal will not be better that much. And looking for the future in the face of toughening standards in many countries, as well as a need to not depend on foreign oil, the world's car makers have all dabbled in various technologies and fuels than the traditional gasoline engine. Electric automobiles seem to get all the attention from the media, but many feel natural gas-powered engines are the way to go. Besides running cleaner, cheaper and more efficiently than gas engines, you never have to plug them in. Natural gas-powered automobiles are clean-running, fuel efficient and economical to drive. Lastly, CNG is about half the cost of gasoline.
Article source: <a title="Natural Gas-powered vehicles: the other green" href="http://www.cardealexpert.com/news-information/the-expert-explains/natural-gas-cars/">Natural Gas-powered vehicles: the other green</a>
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