Fuel cell characteristics

Fuel cells are very complex, involving theories of chemical thermodynamics, electrochemistry, electrocatalysis, materials science, power systems and automatic control, with the advantages of high power generation efficiency and less environmental pollution. In general, fuel cells have the following characteristics:

(1) The energy conversion efficiency is high. He directly converts the chemical energy of the fuel into electric energy without passing through the combustion process, and thus is not restricted by the Carnot cycle. At present, the fuel-electric energy conversion efficiency of a fuel cell system is 45% to 60%, while the efficiency of thermal power generation and nuclear power is about 30% to 40%.

(2) Harmful gases SOx, NOx and noise emissions are low. CO2 emissions are greatly reduced due to high energy conversion efficiency, and there is no mechanical vibration.

(3) The fuel has a wide range of applications.

(4) The building blocks are strong, the scale and installation location are flexible, the fuel cell power station has a small footprint, the construction period is short, and the power of the power station can be assembled by the battery stack as needed, which is very convenient. Whether the fuel cell is used as a centralized power station or distributed power, or as an independent power station for a community, a factory, or a large building, it is very suitable.

(5) The load response is fast and the running quality is high. The fuel cell can be converted from ** power to rated power in a few seconds, and the power plant can be close to the load, which improves regional frequency offset and voltage fluctuations, reduces existing substation equipment and current carrier capacity, and reduces Transmission line investment and line loss.

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July 25, 2023