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TEAM II

TEAM II. Cooling Tower Analysis By: Cortez Rankin & D. Caruthers. Objectives. Components of Cooling Tower Air Outlet Velocities and Flow Rates Air Inlet Velocities and Flow Rates Water Inlet and Outlet Data Comparison of Data @ Different Water Inlet Flow Rates. Water Cooling Tower.

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TEAM II

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  1. TEAM II Cooling Tower Analysis By: Cortez Rankin & D. Caruthers

  2. Objectives • Components of Cooling Tower • Air Outlet Velocities and Flow Rates • Air Inlet Velocities and Flow Rates • Water Inlet and Outlet Data • Comparison of Data @ Different Water Inlet Flow Rates

  3. Water Cooling Tower

  4. Balances Assuming Steady State Operation [IN = OUT] Overall Mass Balance MAO + M WO = MAI + MWI Overall Energy Balance hAO MAO + h WO M WO = h AI M AI+ hWIMWI AO=Air OutletAI=Air Inlet WO=Water Outlet WI=Water Inlet

  5. Portable Cooling Tower

  6. Air Inlet

  7. Air Outlet and Water Inlet

  8. Psychrometric Chart

  9. Air Inlet Data for Water Inlet Flow Rate = 5.1 (l/min) • Velocity = 12.2 m/s • Wet Bulb Temp. = 18 °C • Dry Bulb Temp. = 25.5 °C • Area = 0.038 m2 • Relative Humidity = 48% • Volumetric Flow Rate= 0.464 m3/s

  10. Air Inlet Data for Water Inlet Flow Rate = 10.1 (l/min) • Velocity = 12.0 m/s • Wet Bulb Temp. = 17 °C • Dry Bulb Temp. = 25 °C • Area = 0.038 m2 • Relative Humidity = 45% • Volumetric Flow Rate= 0.456 m3/s

  11. Air Inlet Data for Water Inlet Flow Rate = 40.3 (l/min) • Velocity = 8.0 m/s • Wet Bulb Temp. = 19 °C • Dry Bulb Temp. = 27.5 °C • Area = 0.038 m2 • Relative Humidity = 45% • Volumetric Flow Rate= 0.304 m3/s

  12. Outlet Velocity as a Function of Radiusfor Water Inlet Flow Rate = 5.1 (l/min)

  13. Outlet Velocity as a Function of Radiusfor Water Inlet Flow Rate = 10.1 (l/min)

  14. Outlet Velocity as a Function of Radiusfor Water Inlet Flow Rate = 40.3 (l/min)

  15. Calculate Outlet Air Velocity

  16. Formulas • Volumetric Flow Rate = (Area)(Velocity) • Mass Flow Rate = (Density)(Volumetric Flow Rate)

  17. Outlet Air for Water Inlet Flow Rate = 5.1 (l/min) • Area = 0.312 m2 • Volumetric Flow Rate= 1.7 m3/s • Temp. Dry Bulb= 21 °C= Wet Bulb Temp. • Enthalpy = 79 kJ/kg Dry Air

  18. Outlet Air for Water Inlet Flow Rate = 10.1 (l/min) • Area = 0.312 m2 • Volumetric Flow Rate= 1.6 m3/s • Temp. Dry Bulb= 23 °C= Wet Bulb Temp. • Enthalpy = 86 kJ/kg Dry Air

  19. Outlet Air for Water Inlet Flow Rate = 40.3 (l/min) • Area = 0.312 m2 • Volumetric Flow Rate= 1.0 m3/s • Temp. Dry Bulb= 31°C= Wet Bulb Temp. • Enthalpy = 123 kJ/kg Dry Air

  20. Water Data for Water Inlet Flow Rate = 5.1 (l/min) • Inlet Temp.= 52.5 oC • Outlet Temp.= 27.7 oC • Temp. Change= 24.8 oC • Mass Flow Rate= 0.085 kg/s • Tons of Cooling= 2.5

  21. Water Data for Water Inlet Flow Rate = 10.1 (l/min) • Inlet Temp.= 56.3 oC • Outlet Temp.= 31 oC • Temp. Change= 25.3 oC • Mass Flow Rate= 0.168 kg/s • Tons of Cooling= 5.1

  22. Water Data for Water Inlet Flow Rate = 40.3 (l/min) • Inlet Temp.= 52 oC • Outlet Temp.= 30.4 oC • Temp. Change= 21.6 oC • Mass Flow Rate= 0.671 kg/s • Tons of Cooling= 17

  23. Admin Tower Schematic

  24. Admin Cooling Tower Front (West) Inlet • Dry Bulb Temp = 18 oC • Wet Bulb Temp = 12 oC • Area = 4.6 m2 • Air Speed = 1.4 m/s • Volumetric Flow rate = 6.1 m3/s • Density of Area = 1.2 kg/m3 • Mass flow rate = 7.3 kg/s

  25. Admin Cooling Tower Front (West) Inlet Team 3 • Dry Bulb Temp = 33 oC • Wet Bulb Temp = 24.5 oC • Area = 4.6 m2 • Air Speed = 1.6 m/s • Volumetric flow rate = 7.6 m3/s • Density of Area = 1.1 kg/m3 • Mass flow rate = 8.3 kg/s

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