Page 77 - High Temperature Solid Oxide Fuel Cells Fundamentals, Design and Applications

54 High Temperature SoIid Oxide Fuel Cells: Fundamentals, Design and Applications

List of terms

Symbols
CP temperature-dependent heat capacity
e elementary charge
et specific exergy of the component i
F Faraday constant
A'G Gibbs enthalpy or free enthalpy of the reaction
H enthalpy
ir enthalpy flow
A'H reaction enthalpy
h* specific enthalpy related to the standard state
I electrical current
K equilibrium constant
LHV lower heating value
rh mass flow
NA Avogadro constant
n* constant molar flow at the fuel cells anode
ne[ quantity of released electrons related on the
utilised fuel
molar flow of electrons
molar quantity of the supplied fuel
molar flow
molar quantity
total pressure
standard pressure
electrical power
specific electrical power
partial pressure of the component i
power loss
reversible electrical power
heat
specific heat
electric or ohmic resistance
universal gas constant
specific entropy related to the standard state
total entropy
reaction entropy
entropy production
absolute temperature
fuel utilisation
voltage or potential
Nernst voltage
voltage loss
specific volume
technical work