Abstract
The internal diameter of a tube in a ‘church window’ condenser was
estimated using an entropy generation minimization approach. The adopted
model took into account the entropy generation due to heat transfer and
flow resistance from the cooling-water side. Calculations were performed
considering two equations for the flow resistance coefficient for four
different roughness values of a condenser tube. Following the analysis,
the internal diameter of the tube was obtained in the range of 17.5 mm to
20 mm (the current internal diameter of the condenser tube is 22 mm). The
calculated diameter depends on and is positively related to the roughness
assumed in the model.
Go to article