Acal Energy, o companie din Marea Britanie, a prezentat o celulă de combustibil ce poate furniza curent electric pentru 480.000 de kilometri. Acal Energy a finalizat testele de durabilitate, celula de combustibil funcționând circa 10.000 de ore fără a se dregrada substanțial. Acal Energy folosește o tehnologie denumită FlowCath în care catalizatorul reacției nu este platina, așa cum este cazul celulelor de combustibil normale, ci un catalizator lichid care îndeplinește și rolul de agent de răcire.
Celulele de combustibil furnizează curent electric în urma reacției dintre oxigenul atmosferit și hidrogenul stocat într-un rezervor. Celula alimentează un motor electric și poate fi legată în tandem cu un acumulator cu litiu pentru reprizele rapide de accelerare. Practic automobilul este motorizat electric însă folosește drept combustibil hidrogenul. Stocarea hidrogenului încă mai pune o serie de probleme însă automobilele ce folosesc acest combustibil au autonomie practic nelimitată, așa cum are un automobil normal pe benzină.
Celula de combustibil Acal Energy
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YDROGEN FUEL CELL THAT’S AS DURABLE AS A CONVENTIONAL ENGINE
ACAL Energy system breaks the 10,000 hour endurance barrier
27 June 2013, Runcorn, UK: ACAL Energy Ltd, the British chemical engineering company, has announced today that its FlowCath® chemistry and engineering has enabled a PEM hydrogen fuel cell to reach 10,000 hours’ runtime on a third party automotive industry durability test without any significant signs of degradation. ACAL Energy’s breakthrough approach is also significantly cheaper than conventional fuel cell technology.
10,000 hours, the equivalent of 300,000 driven miles, is the point at which hydrogen fuel cell endurance is comparable to the best light-weight diesel engines under such test conditions. This endurance far exceeds the current 2017 US Department of Energy (DoE) industry target for fuel cell powered vehicles to last 5,000 hours, equivalent to 150,000 road miles, with an expected degradation threshold of approximately 10%.
Over the last 16 months, ACAL Energy has put its proprietary design fuel cell through an industry standard automotive stress test protocol that simulates a 40-minute car journey with a start-stop at the end of each cycle. The cycle, which was repeated 24 hours a day, seven days a week, mimics a vehicle journey with frequent stops, starts and a highway cruise. This particular test is employed to accelerate aging and to stress wear on car engines and fuel cell systems over time.
Unlike a conventional PEM hydrogen fuel cell design, ACAL Energy’s technology does not rely on platinum as the catalyst for the reaction between oxygen and hydrogen. The platinum and gas have been replaced with a patented liquid catalyst, which ACAL Energy calls FlowCath®. This revolutionary approach dramatically improves a PEM fuel cell’s durability and at the same time reduces the cost of a system. The liquid acts as both a coolant and catalyst for the cells, ensuring that they last longer by removing most of the known decay mechanisms.
Importantly, ACAL Energy’s technology reduces significantly the total cost and weight of a fuel cell and enables a competitive fuel cell drive-train with a power output of 100kW. This is equivalent to that of a 2-litre diesel engine. Many of the world’s largest automakers including Hyundai, Honda and Toyota have announced plans to launch fuel cell vehicles by 2015.
Greg McCray, CEO of ACAL Energy, said:
„Degradation has long held back the potential for the widespread use of hydrogen fuel cells in the automotive sector. Breaking the 10,000 hour threshold during rigorous automotive testing is a key reason our hydrogen fuel cell design and chemistry has been selected for trial by a number of the 6 top automotive OEMs.”
He continued: „With our technology, hydrogen fuel cell vehicles can drive over 500 miles per tank of fuel, and can be refuelled in less than five minutes, emitting only water. For a driver, the only difference from driving an internal combustion engine car is what’s going in the tank, but for the environment the significance of zero carbon emissions is enormous”.
Kevin Treco of The Carbon Trust said:
„ACAL Energy continues to make impressive progress towards developing a novel, robust hydrogen fuel cell system that has the potential to reduce costs to be competitive with conventional engines. The Carbon Trust invested in ACAL Energy under the Polymer Fuel Cell Challenge, recognising that ACAL Energy’s technology was one of a few that could potentially achieve such cost reductions and accelerate the introduction of fuel cell vehicles and their associated carbon emission savings. We are excited by the current world leading 10,000 hour durability demonstrated and the partnerships it is helping to secure.”
About ACAL Energy
ACAL Energy is a British chemical engineering company with a revolutionary new approach to hydrogen fuel cell technology.
The company has a patented liquid catalyst, FlowCath® and a new fuel cell architecture, which together create a substantially cheaper, smaller and more durable hydrogen fuel cell. This unique combination makes hydrogen fuel cells viable commercially, as a clean energy source, for the first time.
Hydrogen is the world’s most abundant element; it is a clean, non-polluting fuel and is a common by-product of many industrial processes. ACAL Energy will license its technology to companies in the automotive and stationary power sectors.
The company, advised by Innovator Capital, the specialist investment bank, is funded currently by a mixture of venture and strategic investors including: the Carbon Trust, a key investor in the low carbon technology field; I2BF Global Ventures, an international clean technology asset management group; Solvay, the international chemical group; a large Japanese automotive manufacturer; and the North West Fund for Energy and Environment.
ACAL Energy, a private limited company, was founded in 2004 by Dr Andrew Creeth and Amanda Lyne and is based in the North West of England.
For more information, please visit www.acalenergy.co.uk [/showhide]