COOLING TOWER FORMULAS

Where

T1 Hot water temperature entering to cooling tower T2 Cold water temperature leaving from cooling tower Wb Design wet bulb temperature Coc Cycle of concentration

Cooling tower Range T1-T2 Cooling tower approach T2-Wb Evaporation Loss (M3/Hr) 0.00085 x 1.08 x Flow rate (M3/HR) x Range Cooling tower effectiveness (%) [(T1-T2)/(T1-Wb)] x 100 Blow down losses Evaporation losses / (COC-1) 1 Cooling tower ton 15000 BTU/Hr 1 Refrigeration ton 12000 BTU/Hr Pressure in PSI Head in feet/2.31 1 Bar 14.7 PS