Page 189 - Entrophy Analysis in Thermal Engineering Systems

Nomenclature

stochiometric coefficient of species j, Eq. (10.15)
a j
specific heat at constant pressure
c p
specific heat at constant volume
c v
C concentration
_ C ¼ _mc p
CR compression ratio
E expansion coefficient, Eqs. (2.11), (2.12), (2.13), (3.7)
E energy
_ E rate of energy
f() function
g m ¼h T s s
G Gibbs function
G m ¼ng m , Eq. (10.10)
h specific enthalpy
h f specific enthalpy of formation
H enthalpy
HV heating value
I electric current
w
L 0 evaporation enthalpy of water
K thermal conductance
m mass
_ m mass flowrate
n number of moles
_ n molar flowrate
N e number of electrons
p pressure
PR pressure ratio
q heat per unit mass (mole)
Q heat
_ Q heat rate
r reaction rate
¼K h /K l , Eq. (6.11)
r K
¼T H /T L , Eq. (6.11)
r T
R Universal gas constant
gas constant
R g
s specific entropy
S entropy
SEG specific entropy generation
t temperature in Centigrade degree, Chapter 2
t time
T temperature in Kelvin
TIT turbine inlet temperature
T R ratio of the highest-to-lowest temperatures, Eq. (5.11)

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