This study evaluated the
exergy analysis of the mechanical forced draft counter flow of the Port
Harcourt Refinery cooling towers. The exergy analysis was carried out using the
exergy destruction method. The results of the investigation and optimization show
that the exergy destruction increases with the
increases in mass flow rates of the cooling water, makeup water, and Air. Also,
exergy destruction decreases with the decreases in Humidity Ratio, Heat sink
Temperature, and Relative Humidity of Air. The optimal values of exergy
efficiency of (0.7899[-]) and exergy destruction of (42135[W]]) obtained gave
the expected minimum values of mass flows rates of Air (2185kg/s), Makeup water
(79.33 (kg/s) and cooling water (4781 (kg/s).
