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United Technologies Research Center (UTRC) Pioneers Fuel Cell-Powered Rotorcraft Flight

The latest step in fuel cell flight has taken to the skies with the world’s first hydrogen helicopter flew for more than 20 minutes. The technology demonstrator developed by United Technologies Corp. features a proton exchange membrane fuel cell.

The latest step in fuel cell flight has taken to the skies with the world’s first hydrogen helicopter flew for more than 20 minutes. The technology demonstrator developed by United Technologies Corp. features a proton exchange membrane fuel cell.

EAST HARTFORD, Conn.– United Technologies Research Center (UTRC), the central research and innovation arm of United Technologies Corporation (NYSE:UTX), achieved first flight of a hydrogen/air fuel cell-powered rotorcraft. The successful technology demonstration was accomplished using a remote-controlled electric helicopter model modified to incorporate a custom Proton Exchange Membrane (PEM) fuel cell power plant.

“Achieving vertical flight represents a key milestone in fuel cell-powered flight as the power density requirements are much greater than for fixed wing aircraft,” said Dr. David Parekh, Vice President, Research, and UTRC Director. “In addition, this environmentally friendly power system produces zero pollution, zero emissions of greenhouse gases and operates with very low noise.”

The pioneering flight using a high power-density PEM fuel cell took place on Oct. 11, 2009, at 10:30 a.m., on the East Hartford campus of UTRC. The remote-controlled helicopter originally designed to run on batteries had a rotor diameter of 2 meters and a takeoff weight of 10 kg. The duration of the fuel cell powered flight was approximately 20 minutes. The team plans to demonstrate longer flight durations in the future.

Additional detail:

  • The power plant is a PEM fuel cell prototype developed by UTRC and based on UTC Power proprietary fuel cell technology.
  • A 4200 psi hydrogen source and air were used.
  • Controls, power electronics and telemetry were implemented by UTRC.
  • Maximum output power was 1.75 kW.
  • System power density exceeded 500 W/kg.
  • Self sustained system, with the power plant automatically started with hydrogen supply and no additional batteries.
  • 5 lb. payload capable
November 26, 2009 - 9:27 AM No Comments

University of Delaware’s second hydrogen fuel cell bus carries special guests

UD's new hydrogen fuel cell bus, the second of its kind on campus

UD's new hydrogen fuel cell bus, the second of its kind on campus

The University of Delaware’s newest bus, a 22-foot, 22-seat vehicle that runs on hydrogen, tooled around downtown Wilmington on Monday, Nov. 16, carrying some very important riders. U.S. Sen. Thomas R. Carper (D-Del.), U.S. Rep. Michael N. Castle (R-Del.) and Wilmington Mayor James Baker sat inside chatting about various options for transport in the region.

The ride was part of a briefing session to update Delaware’s congressional delegation about the progress of UD’s fuel cell research, research for which they secured $1.7 million in funding in 2007.

The paint job on the bus illustrates its place in the progression of fuel cell research at UD. It reads “Zero Emission Fuel Cell Hybrid Bus x2,” as the bus is the second in the hydrogen fleet; the first rolled out in 2007 and currently runs as a shuttle on UD’s Newark campus.

UDHydrogenBus2

Additionally, the “x2” relates to the fuel cell capacity of the bus. Where the first bus contained just one fuel cell stack, this bus houses two, making it more powerful and capable of reaching higher speeds.

The bus, like its predecessor, does not require diesel like traditional buses; instead its fuel cells combine hydrogen and oxygen to directly produce electricity to run the bus. The reaction produces no greenhouse gas emissions and its exhaust consists only of water and water vapor.

“There are only about a dozen fuel cell buses in service across our entire country and two of these buses are on UD’s campus. I think we can be rightfully proud of that achievement,” said Ajay Prasad, professor of mechanical engineering, director of the UD Center for Fuel Cell Research and host of the event.

“These two fuel cell buses are a tremendous step forward,” said Castle. “The University has been a leader in this. We have pulled hard to try to help with the funding of it. We hope this expands exponentially from here on.”

Carper commented that the buses and the green economy they represent are where the country needs to be headed. “It will be reduce our dependence on foreign oil, cleaning up our environment, providing not only safe and affordable transportation but also a lot of jobs to drive them and a lot of jobs to build them, and that’s a great combination,” he said.

U.S. Sen. Ted Kaufman (D-Del.) is traveling out of the country and could not make it to the event, but sent a representative and his best wishes.

The delegation prepares to board the UD hydrogen fuel cell bus.

The delegation prepares to board the UD hydrogen fuel cell bus.

“This is just another example of Delaware setting an example for all states. This fuel cell bus highlights the fantastic work that University of Delaware’s Fuel Cell Research Lab is doing,” Kaufman said in a statement. “Developing this technology in Delaware will be a boon to our state’s economy and reaffirm our position as a leader in cutting edge technology.”

Mark Barteau, senior vice provost for research and strategic initiatives at UD, noted this and other projects undertaken by researchers working within the University of Delaware Energy Institute aim to be solutions to the world’s complex energy problems.

“When we launched the Energy Institute, one of the things we said we wanted to do was to take research out of the laboratory and into public demonstration, and I think that’s a critical component of our fuel cell bus program,” Barteau said. “This is very much out there on the street where our students can use it and the public can see it.”

While the buses are visible all around campus, what might be hidden is all the work that goes into making them possible.

“We have about 20 people currently working on these projects,” said Michael Chajes, dean of the UD College of Engineering. “It’s critical for our nation to both do the research but also educate the people who will carry this forward.”

Chajes remarked that in order to do that important work, UD needs more facilities, stating the planned Interdisciplinary Science and Engineering building will allow for more of this sort of innovation.

Article by Andrea Boyle
Photos by Evan Krape

November 26, 2009 - 7:27 AM No Comments