A NEW POLYNOMIAL BASED MODEL FOR DETERMINING COOLING TOWER EVAPORATION WATER LOSS
Water conservation has become a critical issue in recent
years. Evaporation in cooling towers can be a
significant source of water consumption in commercial
buildings; however, most cooling tower models used in
whole building simulation programs are either
prohibitively time-consuming or overly simplistic with
respect to water consumption. Therefore, it is difficult
to determine the effects of control strategies on water
consumption using these models. This paper presents a
new polynomial based model which defines the water
loss by evaporation as a function of tower inlet
conditions. The polynomial coefficients have been
derived through a multi-variable regression performed
on data generated by a detailed finite difference model.
Test cases show improved agreement with the detailed
finite difference model compared to several other
existing models. In addition, the execution time of the
new model has been found to be much faster than the
detailed model and comparable to those of other
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