Constant Pressure Mole Reactor#
A constant pressure mole reactor is implemented by the C++ class
ConstPressureMoleReactor and is available in Python as the
ConstPressureMoleReactor
class. It is defined by the state variables:
, the total enthalpy of the reactor’s contents (in J) , the number of moles for each species (in kmol)
Equations 1 and 2 below are the governing equations for a constant pressure mole reactor.
Species Equations#
The moles of each species in the reactor changes as a result of flow through the
reactor’s inlets and outlets and production of gas phase species
through homogeneous reactions and reactions on the reactor
surfaces. The rate at which species
Where the subscripts in and out refer to the sum of the corresponding property over all inlets and outlets respectively. A dot above a variable signifies a time derivative.
Energy Equation#
Writing the first law for an open system gives:
where positive
Differentiating the definition of the total enthalpy,
Noting that