Advantages and disadvantages of various fuel cell systems? Advantages and disadvantages of various fuel cell systems? The unit is a fully automated power system, which converts hydrogen fuel and oxygen from air directly into DC electricity. Water is the only by-product of the reaction. This fuel cell generator, which operates at low pressures, provides reliable, clean, quiet and efficient power. It is small enough to be carried to wherever power is needed. Illustration courtesy of Ballard Power Systems Inc., February 2001. The SOFC is best suited for stationary applications. The system requires high operating temperatures (about 1000°C). Newer systems are being developed which can run at about 700°C. A significant advantage of the SOFC is its leniency on fuel. Due to the high operating temperature, hydrogen is produced through a catalytic reforming process. This eliminates the need for an external reformer to generate hydrogen. Carbon monoxide, a contaminant in the PEMFC system, is a fuel for the SOFC. In addition, the SOFC system offers a fuel efficiency of 60 percent, one of the highest among fuel cells. The 60 percent efficiency is achieved with co-generation, meaning that the heat is utilized. more info:www.abatteryweb.com



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