XH0 0.5[mol/mol] "Initial ratio of absorbed hydrogen atoms per metal atom"
XHmax 6 "Maximum number of hydrogen atoms per metal atom"
T0 15[degC] "Inlet temperature for cooling media"
x0_N2 0.05 "Inlet mole fraction of nitrogen"
M_H2 2.01596[g/mol] "Hydrogen molar mass"
M_N2 28.0137[g/mol] "Nitrogen molar mass"
Mn0 (1-x0_N2)*M_H2+x0_N2*M_N2 "Initial mean molar mass"
w0_H2 (1-x0_N2)*M_H2/Mn0 "Initial H2 mass fraction, gas phase"
w0_N2 1-w0_H2 "Initial N2 mass fraction, gas phase"
P0 p_eq(XH0,T0)/(1-x0_N2) "Initial pressure"
m0_H2 rho0*w0_H2 "Initial H2 mass, gas phase"
rho0 P0*Mn0/(R_const*T0) "Initial density"
porM 0.5 "Intermetallic alloy (alloy) porosity, assumed constant independent of absorption degree"
MnM 421.5[g/mol] "Alloy molar mass"
CpM 445[J/kg/K] "Heat capacity, alloy"
rhoM 7760[kg/m^3] "Alloy solid phase density"
CpMH 445[J/kg/K] "Alloy heat capacity at constant pressure"
CpH2 28.7[J/mol/K] "Hydrogen gas heat capacity, assumed constant at process conditions"
kH2 0.18[W/(m*K)] "Hydrogen gas thermal conductivity, assumed constant at process conditions"
CpN2 29.1[J/mol/K] "Nitrogen gas heat capacity, assumed constant at process conditions"
kN2 0.025[W/(m*K)] "Nitrogen gas thermal conductivity, assumed constant at process conditions"
visc 1e-5[Pa*s] "Dynamic viscosity for gas mixture, assumed constant at process conditions"
D_H2_N2 2e-5[m^2/s] "Binary diffusion coefficient H2 N2, assumed constant at process conditions"
t_ramp_gas 5[min] "Startup ramp for gas"
t_ramp_liquid 0.5[min] "Startup ramp for cooling water"
Pin 7[atm] "Inlet pressure"
htc 2000[W/m^2/K] "Heat transfer coefficient"
Tcooling 5.5[degC] "Temperature, cooling water"
Fcooling 0.4[m^3/h] "Flow rate, cooling water"
Ain pi*((rInlet+dCoolingChannel)^2-rInlet^2) "Area inlet pipe, cooling water"
Vcooling Fcooling/Ain "Inlet velocity, cooling water"
sectorNum 8 "Number of geometry sectors"