AF looks at hydrogen as potential fuel source Published May 30, 2008 By Amanda Creel 78th Air Base Wing Public Affairs ROBINS AIR FORCE BASE, Ga. -- Few car owners would ever think of pouring water down the gas tank. However, as the Air Force continues initiatives to redefine the Air Force's energy culture, more Airmen might picture water as an energy source. Some Airmen here may be among the first to see the use of hydrogen-power in their daily lives, after the addition of a Quantum HyHauler Plus and a hydrogen-powered forklift. Robins AFB received the HyHauler Plus through a partnership with the U.S. Army National Automotive Center and the Air Force's Advanced Power Technology Office, which is based here. The HyHauler is a trailer-mounted hydrogen fuel dispensing system. It uses only 0.2 gallons of tap water per hour and converts that water into hydrogen using electrolysis, where it is stored in 20 two-kilogram, carbon-wrapped hydrogen storage tanks. "It cracks the hydrogen from the water, producing hydrogen and oxygen," said Ernie Powell, APTO engineer. The hydrogen fuel cells involved in the project can be used to fuel a vehicle or to provide electricity to a building. The HyHauler Plus is used to create and dispense the hydrogen. According to Mike Mead, chief of the APTO office, the trailer will house the hydrogen producing equipment until a permanent station can be constructed. Not only will the station help provide hydrogen energy to different base agencies; it will also be powered using another renewable energy -- solar power. Officials already have applied the technology to a standard, battery-powered forklift. Through a joint venture with ePower Synergies and Plus Power Inc., workers converted it to a hydrogen-powered forklift. The HyHauler Plus produces about 2 kilograms a day, which is more than the 1.8 kilograms of hydrogen required to fuel the forklift for an eight-hour shift. The Air Force will compare the productivity of a traditional battery-powered forklift with the one converted to hydrogen power. "We will test the vehicle to ensure it meets the requirements capabilities for the Air Force," Mr. Mead said. Many of the base's warehouses use the conventional battery-powered forklifts and one of these warehouses will be given the opportunity to test the practicality of switching to a hydrogen-powered forklift in other areas on the base. "We are going to put this hydrogen forklift in a warehouse, where we plan to operate it for eight to 16 hours a day and then refuel it after each shift," said Scott Slyfield, program manager for the project. The trailer functions as a "hydrogen and go" stop for the forklift. The forklift backs into position, is grounded and then is filled using a straight nozzle that is controlled by a touch screen located on the trailer. Mr. Mead said one of the keys to implementing the alternative or renewable energy source for practical use is not requiring the users to learn new ways of doing things but to make the new energy transition transparent. "That's the beauty of everything," Mr. Mead said. "It looks and operates the same as everything we have. It's just part of the Air Force's initiative to advance alternative fuels and energy into the Air Force's daily structure." The team said they are aware of safety concerns when using hydrogen energy, but that the system is equipped with many safety features to ensure the members of Team Robins are safe. "Hydrogen is lighter than air, so when it spills it floats away, when gas spills on the ground it stays," Mr. Mead said. The HyHauler Plus includes a flashing light on the exterior of the trailer to alert those in the area if there is a hydrogen leak, a fan that can suck out any hydrogen leaks within the trailer, and sensors that enable the system to shutoff automatically if a hydrogen leak occurs.