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Strategies & Market Trends : Ask Vendit Off-Topic Questions -- Ignore unavailable to you. Want to Upgrade?


To: Walkingshadow who wrote (7870)4/17/2005 10:27:40 AM
From: Venditâ„¢  Read Replies (1) | Respond to of 8752
 
The ungainly looking Chevy pickup parked in the courtyard at Central High School, with a huge set of solar panels mounted on top, may not look so futuristic.

But it certainly points the way.

Hand-built on a shoestring budget by a Central physics teacher and a team of students, the truck is one of a kind, a demonstration of how future transportation can be self-sustaining and pollution-free.

The truck is hydrogen-powered and creates its own fuel from solar energy and water, a technical feat that rivals the advanced technology being researched by major auto companies and universities. The four-cylinder engine is tuned to run on hydrogen, which is produced by a hand-built electrolysis system mounted in the bed.

azcentral.com



To: Walkingshadow who wrote (7870)4/17/2005 10:30:56 AM
From: Venditâ„¢  Respond to of 8752
 
Nanotech aids green hydrogen production

A UK company has developed a nano-crystalline material that will dramatically improve the production of hydrogen by using solar energy to split water more efficiently into its elemental parts.

Hydrogen Solar says its efficiency rate is now at eight per cent - just two per cent shy of the 10 per cent benchmark accepted for commercial production. Company CEO Dr. David Auty says he expects to commercialise the technology within a year.

Speaking to The Register, Dr. Auty explained how the Tandem Cell technology works.

There are two photocatalytic cells arranged in series. The front cell is coated with a nano-crystaline film which absorbs high energy (ultraviolet and blue) light.

The lower energy light (green and red wavelengths) passes through the front cell and into the second. Here, the light excites the electrons in this cell's coating which sets up an electrical potential.

Now there is a potential difference between the two cells allowing current to flow. This electricity splits the water molecules in an electrolyte, producing hydrogen.

"The coatings we have put down have features on a scale of 30-50nm," he says. "But the films are between 1000nm and 3000nm thick, with lots of features throughout the thickness. The material is mesoporous, which means there is a huge surface area available for activation."

Dr. Auty explained that there the properties of the materials used change in subtle ways at the nano scale. "We think this may be helping us, too," he said.

Hydrogen Solar is discussing commercial projects with international companies is both car manufacturing and construction industries. ®

theregister.co.uk



To: Walkingshadow who wrote (7870)4/17/2005 10:33:31 AM
From: Venditâ„¢  Read Replies (2) | Respond to of 8752
 
GM Deal for Hydrogen-Powered Cars

General Motors signed an $88 million deal with the Department of Energy to build a fleet of 40 hydrogen fuel cell vehicles and further develop the technology.

Under the five-year program, General Motors (GM) will spend $44 million to deploy fuel cell demonstration vehicles in Washington, D.C., New York, California and Michigan.

wired.com



To: Walkingshadow who wrote (7870)4/17/2005 1:25:41 PM
From: Gersh Avery  Read Replies (1) | Respond to of 8752
 
When I was young, I thought you could just hook up a generator and motor together.

The motor would drive the generator and produce electricity which would power the motor!!

Gee ..

Now folks think that if you add a stage in the middle, it gets better!!

Lets see .. use a generator to make electricity which is used to make hydrogen which is used to run a motor which us used to run the generator.

It's the same old perpetual motion game with a new twist.

This time, however, the taxpayers are about to support it with billions of dollars.