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8143 messages, Last post on Nov 27, 2009 at 12:10 PM
You are in the Diesels Forum. Your Host is kcram
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Replying to: roland3 (Jan 07, 2009 10:02 am)
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Replying to: roland3 (Jan 10, 2009 8:27 am)
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Replying to: roland3 (Jan 11, 2009 2:06 pm) Quite a number of the diesel cars here in Europe use Disel Particulate Filters, (DPF). They appear to be potentially troublesome if car only wanders around town and the exhaust doesn't get really hot, (enough to burn off the nasties). Dashboard message comes up so you need to go do a circa 20 minute run at 50mph to get it all hot and clean. Miss that opportunity and it's down to min power and a trip to the dealer for cat cleaning. Get caught with this 3 times and you may well need a new cat............and that's not a warranty item in those circumstances, apparently. Anyway, that's my simplistic take on the topic. The link is better, (it's from a leasing company). Let me make it clear that I don't know anyone who has had this problem, (and most of my friends drive modern diesels), but it does appear on various Forums from time to time - and gets a lot of attention; as "bad" things always do. Enjoy. DPF
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Replying to: alltorque (Jan 11, 2009 2:46 pm) |
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Continental Airlines tested a Boeing 737-800 using biofuel on one engine and normal jet fuel on the other. Worked great. http://www.chron.com/disp/story.mpl/business/continental/6199665.html
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Replying to: winter2 (Jan 13, 2009 3:37 pm) The biofuel blend included components derived from algae and jatropha plants. Both are sustainable, second-generation sources that don’t have an effect on food crops or water resources, according to Continental. The algae oil was provided by Sapphire Energy, and the jatropha oil was provided by Terasol Energy. Other partners with Continental on the project were Boeing, CFM International, a joint company of General Electric and Snecma, and refining technology developer UOP, a Honeywell company. Sustainable biofuels for aviation are a real near-term option, Jennifer Holmgren, general manager of UOP Renewable Energy and Chemicals, said Wednesday. “We believe production levels could reach hundreds of millions of gallons per year by 2012,” Holmgren said. It looks like at least 15 other companies are doing R&D on algae biodiesel http://earth2tech.com/2008/03/27/15-algae-startups-bringing-pond-scum-to-fuel-ta- nks/
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Replying to: gagrice (Jan 13, 2009 4:43 pm) For Mr. Gates, the investment in Sapphire marks a shift in his clean-fuel strategy and perhaps a sign of a broader interest in alternative energy. An early investor in Pacific Ethanol Inc., Cascade sold its stake earlier this year, according to market data from Thomson Financial. Could another well-known ethanol investor be far behind? Vinod Khosla, a Silicon Valley billionaire whose personal investment vehicle has backed numerous ethanol-related companies, is scheduled to give the keynote address next month at the Algae Biomass Summit. This has led to speculation that he might be looking at algae for investment opportunities. http://blogs.wsj.com/environmentalcapital/2008/09/17/bill-gates-goes-for-algae-i- nvests-in-biofuel-maker-sapphire-energy/
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Replying to: gagrice (Jan 13, 2009 4:50 pm) |
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Replying to: roland3 (Jan 11, 2009 6:34 pm)
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Diesel fuel prices are killing the Diesel Revolution before it can get started.. As it stands, with today's gas vs. diesel prices at the pump, these particular hybrids have a clear economy advantage over even the very frugal Volkswagen Jetta TDI. But - and this is a big but - do we all really expect the national average for regular gasoline (according to the Energy Information Administration) to remain at $1.78 (figure as of 1/12/09)? Wild fluctuations like we saw last summer could quickly diminish the amazingly low cents-per-mile figure of the gas/electric hybrids. Then again, if gas goes up, diesel will likely go even higher, so maybe my point is moot. Yet again, worldwide industry, expansion, and building, all of which rely on diesel fuel for industrial machinery, are down significantly, perhaps narrowing and ultimately eliminating diesel's premium over gasoline. Could the worldwide recession result in diesel prices at the pump coming down to, say, the level of premium gasoline or less? Ye economists at large, let me know if I'm dreaming or making sense. |
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