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Showing posts with label Fuel Cell. Show all posts
Showing posts with label Fuel Cell. Show all posts

Saturday, April 18, 2020

Hydrogen on Demand -long road to technology commercialisation.

In 1967, while working as a researcher at IBM, Woodall discovered that liquid alloys of aluminum and gallium spontaneously produce hydrogen if mixed with water. The research, which focused on developing new semiconductors for computers and electronics, led to advances in optical-fiber communications and light-emitting diodes, making them practical for everything from DVD players to television remote controls and new types of lighting displays. That work also led to development of advanced transistors for cell phones and components in solar cells powering space modules like those used on the Mars rover, earning Woodall the 2001 National Medal of Technology from President George W. Bush. Also while at IBM, Woodall and research engineer Jerome Cuomo were issued a U.S. patent in 1982 for a "solid state, renewable energy supply." The patent described their discovery that when aluminum is dissolved in liquid gallium just above room temperature, the liquid alloy readily reacts with water to form hydrogen, alumina and heat.
Woodall moved to Purdue university and continued to work on the aluminium alloy. His team succeeded in developing technology that produces hydrogen by adding water to an alloy of aluminum and gallium. When water is added to the alloy, the aluminum splits water by attracting oxygen, liberating hydrogen in the process. The Purdue researchers are developing a method to create particles of the alloy that could be placed in a tank to react with water and produce hydrogen on demand. The Purdue Research Foundation holds title to the primary patent, which has been filed with the U.S. Patent and Trademark Office and is pending. An Indiana startup company, AlGalCo LLC., has received a license in 2007 for the exclusive right to commercialize the process.
AlGalCo founder and president  Kurt Koehler is a businessman, not a chemist. He graduated with a degree in marketing and management from IU and went on to earn a Master's in European History. As luck would have it, an encounter with Purdue representatives at the Indiana State Fair piqued his interest and ultimately led him to Purdue professor Jerry Woodall, who had developed the aluminum alloy technology. After 14 years of beta testing product is rolled out for Carmel's city fleet

Tuesday, June 16, 2015

Technology Commercialization- Mars research project on techniques to generate oxygen on Mars using solid oxide electrolysis.

Legacy fuel cell technologies like proton exchange membranes (PEMs), phosphoric acid fuel cells (PAFCs), and molten carbonate fuel cells (MCFCs), have all required expensive precious metals, corrosive acids, or hard to contain molten materials.  For decades, experts have agreed that solid oxide fuel cells (SOFCs) hold the greatest potential of any fuel cell technology. With low cost ceramic materials, and extremely high electrical efficiencies, SOFCs can deliver attractive economics without relying on CHP. But until now, there were significant technical challenges inhibiting the commercialization of this promising new technology. SOFCs operate at extremely high temperature (typically above 800°C). This high temperature gives them extremely high electrical efficiencies, and fuel flexibility, both of which contribute to better economics, but it also creates engineering challenges.

Dr. KR Sridhar was Director of the Space Technologies Laboratory (STL) at the University of Arizona where he was also a professor of Aerospace and Mechanical Engineering. Under his leadership, STL won several nationally competitive contracts to conduct research and development for Mars exploration and flight experiments to Mars. KR has served as an advisor to NASA and has led major consortia of industry, academia, and national labs. His worked for the NASA Mars program to convert Martian atmospheric gases to oxygen for propulsion and life support. Dr. Sridhar and his team built a fuel cell capable of producing air and fuel from electricity generated by a solar panel.They soon realized that their technology could have an even greater impact here on Earth. In 2001, when their project ended, the team decided to continue their research and start a company. Originally called Ion America, Bloom Energy, was founded with the mission to make clean, reliable energy affordable for everyone on earth.
Enigmatically, for months the firm’s webpage contained only a clock that counted down to Feb. 24, 2010, signaling a major event was to occur. Just days before the event, publicists for the Sixty Minutes television show spread word that they would air a sneak peak of Bloom “Box” fuel cells that might be “an energy breakthrough.” The Sixty Minutes’ story revealed that Bloom had developed and manufactured 100-kilowatt SOFC stacks that had already been in successful operation at big named firms, such as Bank of America, eBay and Google. In fact, Bloom demonstrated that its SOFC units that could be easily “plugged in” to a company’s power network after being set in place with a forklift. Srindhar claimed that his design avoided the use of expensive catalysts, such as platinum, and he displayed his solution that consisted of two square, white panels, one imprinted with a green “ink,” and the other with black.