This report investigates the possibility of constructing and
developing a Performance-Boiler-Computer-Model of the Duvha Power
Station Boiler from the PEPSE* computer software.
This model is to act as a "tool" in investigations into certain
as-designed and off design changes on the boiler's thermodynamic
It is evident from the results of the performance boiler model
that, with further development to a model in design mode, this
will be a very useful and versatile tool. This fact is evident
from the results of the superheater 3 design mode model.