|
Fuel CellsFuel cells produce environmentally clean electricity through the chemical conversion of hydrogen and oxygen to produce water, heat, and electricity. Like microturbines, they can be located near where power is required. A fuel cell consists of two electrodes, an anode and a cathode, separated by an electrolyte. Power is produced electrochemically by the passing of ions (charged particles) formed at one end of the electrodes with the aid of catalyst, through the electrolyte. The current produced can be utilized for electricity. The major difference between most fuel cells is the type of electrolyte. Some of the different electrolyte types are phosphoric acid, molten carbonate, solid oxide, and proton exchange membrane. Most manufacturers are focusing there efforts on the Proton Exchange Membrane (PEM) fuel cells, developed for smaller-scale stationary power as well as transportation. The PEM fuel cell has the appropriate size and operating characteristics for building use. Offices, health, lodging, and educational buildings have the load characteristics and economies of scale that make PEM fuel cells attractive.
|
|
Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008 EnviroTech Financial, Inc. (714) 532-2731