Difference
between Actual fuel cell and Ideal fuel cell is given bellow:
Actual
Fuel Cell
|
Ideal Fuel Cell
|
a) In
actual fuel cell the transport of oxidizer, electrolyte, fuel and product
from electrode. Surface is not in proper proportion and complex
|
Proper
proportions are maintained and make the system simple.
|
b) Homogenous
reaction take place for three phase interface of an oxidizer, a liquid fuel
electrolyte and solid electrode.
|
No
homogenous reaction take place.
|
c)
The diffuser process at the
electrode surface is quiet complex.
|
Simple.
|
d) Too
much liquid or gas enters the electrolyte and reduce the surface.
|
No
liquid or gas enters.
|
e) Activation
energy reduces the work of cell.
|
No
activation energy.
|
f)
Spurious chemical and
electro-chemical reaction takes place at various places within the cell.
|
This
is absent in ideal cell.
|
g) Various
auxiliaries such as pumps, fans and control system require some energy in an
actual fuel cell plant.
|
There
are not necessary in ideal cell.
|
h) There
have some consideration such as
1.
Reliability
2.
Safety
3.
Initial cost
4.
Environment effect.
5.
Metal should not be
corrosive.
|
No
consideration in Ideal fuel cell.
|
i)
Ohomic resistance reduce
the terminal emf and work of the cell.
|
There
has no Ohomic los resistance.
|
Comments
Post a Comment