Friday, December 14, 2007

What's mean battery Types of fuel AFC system? by mary lv

What's mean battery Types of fuel AFC system? What's mean battery Types of fuel AFC system?The battery AFC has received renewed interest because of low operating costs. Although larger in physical size than the PEMFC system, the alkaline fuel cell has the potential of lower manufacturing and operating costs. The water management is simpler, no compressor is usually needed, and the hardware is cheaper. Whereas the separator for the PEMFC stack costs between $800 and $1,100US per square meter; the equivalent of the alkaline system is almost negligible. (In comparison, the separator of a lead acid battery is $5 per square meter.) As a negative, the alkaline fuel cell needs pure oxygen and hydrogen to operate. The amount of carbon dioxide in the air can poison the alkaline fuel cell. Higher stack temperatures add to the manufacturing cost because they require specialized and exotic materials. Heat also presents a challenge for longevity and reliability because of increased material oxidation and stress. High temperatures, however, can be utilized for co-generation by running steam generators. This improves the overall efficiency of this fuel cell system. more info:www.good-batery.com

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