
Lines 85 to 99: Approximate the enthalpies of liquid and vapor based on the
derived temperature using
enthalpy_v() and enthalpy_l()
functions.
Lines 100 to 120: Fill up the matrix Eq 4.9 (energy balance).
Lines 121 to 146: Perform Gauss-Jordan matrix inversion and multiplication to
solve for the simultaneous linear equation and determine the mass flow
rate of steam and vapor in each effect.
Lines 147 to 181: Compute for the heat transfer area and steam economy. The
user will be asked if the areas provided are acceptable; if the areas are
not acceptable, then the program will redo all the computation until
the areas of all effects are almost ...