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To: Jacques Chitte who wrote (79725)5/24/2000 1:28:00 AM
From: Krowbar  Read Replies (1) | Respond to of 108807
 
Wow Lather, I have a lot of looking up to do to answer your questions. I can answer one right away however. Hydrogenwasan impractical fuel because, mainly because of the storage problem. Energy Conversion Devices (ENER, my biggest holding) has a hydride storage tank that will safely and efficiently hold more hydrogen in a given volume than liquid hydrogen. Texaco has bought 20% of ENER. Shell, British Petroleum and other big oils are pursuing hydrogen as an alternative fuel.

The energy contained in the carbon is used in the conversion to hydrogen. Methane (natural gas) is one of the most efficient to convert. It has 4 hydrogens, and one carbon. What is attractive about converting the methane, is that the CO2 can be easily converted into a solid and buried instead of releasing it into the atmosphere if need be. There are also many uses for the CO2. One use is to drive more oil out of oil wells.

I will try to find the data on power plant to electric car efficiencies.

Del



To: Jacques Chitte who wrote (79725)6/3/2000 12:59:00 AM
From: Krowbar  Read Replies (2) | Respond to of 108807
 
Lather, << A fuel cell hybrid is not much more efficient than a good Carnot-cycle Diesel. Current fuel cells completely waste the carbon in hydrocarbon fuels. And hydrogen is impractical as a small vehicle fuel. Jmo. >>

BP Amoco describes emergence of a pre-eminent 'gas economy'

HyWeb, 00-05-29: In a keynote speech to the world's first on-line energy e-conference and exhibition (www.energyresource2000.com, May 15 to 26), Richard Flury, Chief Executive, BP Amoco Gas & Power, described how many factors now in place are leading to the emergence of a pre-eminent 'gas economy' in the early decades of the century...

...Flury sees natural gas as the much needed 'bridge to a renewables future'. BP Amoco's major investment in solar energy, where it is already the world's largest producer of photovoltaic panels, signalled the company's belief and commitment to that future, according to Flury.

During a transition period, natural gas will be one of the best sources for the hydrogen that will be used to build up the hydrogen economy. The use of hydrogen, or its derivatives such as methanol, is the most efficient source of 'wells to wheels' energy known for transportation, Flury noted.

Both stationary power and transport applications of fuel cells are likely to appear sooner than people think -- with distributed power applications already happening, and 'commercially viable' cars and buses on the road in 2004 from many major motor manufacturers, Flury concluded.

hyweb.de

Del