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Nuclear Production of Hydrogen, Fourth Information Exchange ...

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TRANSIENT MODELLING OF S-I CYCLE THERMOCHEMICAL HYDROGEN GENERATION COUPLED TO PEBBLE BED MODULAR REACTOR<br />

Nomenclature<br />

C R<br />

c v<br />

F<br />

γ<br />

H<br />

h<br />

I<br />

J<br />

k z<br />

m<br />

M R<br />

N<br />

n<br />

P<br />

R<br />

ρ<br />

Concentration <strong>of</strong> reaction chamber<br />

Specific heat at constant volume<br />

Faraday’s constant<br />

Constant<br />

Total enthalpy<br />

Enthalpy<br />

Applied current<br />

Reaction quotient<br />

Rate constant <strong>of</strong> reaction Z<br />

Molar flow rate<br />

Number <strong>of</strong> moles in reactor<br />

Number <strong>of</strong> electrolysers<br />

Electrolysis rate<br />

Reactant pressure<br />

Universal gas constant<br />

Density<br />

Q<br />

HX Heat transferred in heat exchanger<br />

t<br />

T<br />

T 0<br />

T Z<br />

T R<br />

U<br />

V R<br />

ν<br />

dX<br />

y<br />

[Z]<br />

Time elapsed<br />

Fluid temperature<br />

Reference temperature<br />

Temperature <strong>of</strong> reactant Z<br />

Bulk temperature in reactor chamber<br />

Internal energy<br />

Reactor volume<br />

Stoichiometric coefficient<br />

Reactant X produced by reaction<br />

Mole fraction <strong>of</strong> reactant<br />

Concentration <strong>of</strong> chemical species Z<br />

NUCLEAR PRODUCTION OF HYDROGEN – © OECD/NEA 2010 375

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