Fuel cell

newcfd

A fuel cell is an electrochemical device which combines hydrogen with oxygen
to produce electrical power, and heat. The fuel is not burned, but is
electrochemically combines with oxygen from the air-stream, potentially
limiting harmful nitrous and sulphur oxide emissions.A fuel cell is not
a heat engine, and the thermodynamic efficiency is not Carnot-cycle limited.
The solid oxide fuel cell (SOFC) offers certain advantages over other types,
namely; high-temperature operation, use of hydrocarbons as fuels, and
tolerance of fuel impurities such as carbon monoxide. A planar SOFC consists
of an anode, a cathode, an electrolyte, and fuel and air passages designed
for cross flow. Between the porous electrodes is the electolyte, which
conducts electricity, and allows oxygen ions to pass from cathode to anode,
where they combine with hydrogen to form water, heat, and electricity. As
the oxygen ions pass through the electolyte, the resulting excess of electrons
on the anode side completes an electrical circuit through the load. Fuel cells
are operated in stacks, to increase the external voltage, and an electrical interconnect between each cell in the stack expedites the connection. The
operating temperature of a SOFC is important: if the temperature is too cold
the reaction chemistry is adversedly affected: if it is too hot mechanical
failure may result. The SOFC is designed to operate in the range 600-800
degree. Experimental data on fuel cellas are scare, so there has been extensive
interest in the development of mathematical codes for design and
characterization of fuel cells.

windhair

It seems you are focus on this field, I'm working on this now, hehe
really hard!!!!