Then you have the reactor vessel and piping which is the primary boundary which has an eight to ten inch thick reactor vessel and three to four inch thick steel piping to contain the cooling water.

Under the premise of enough analyzing the distribution of temperature in the reactor, this paper suggest the concept of reactive area and elementally confirm the shape and boundary of its.

Recycle tubular reactor model with axial dispersion leads to a special boundary value problem, in which one boundary condition involves the values at two end points.