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Challenger Center Cooling Tower

Challenger Center Cooling Tower. Enev/Ench 435 September 23, 2008 Performed By: Dianah Dugan Alex Saputa. Contents. Block Diagram Schematic Equipment Data Collection Results Conclusion. Block Diagram of Cooling Tower. Air Outlet. D H >0. P= 1 atm W= 0. Air. Air Inlet.

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Challenger Center Cooling Tower

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  1. Challenger Center Cooling Tower Enev/Ench 435 September 23, 2008 Performed By: Dianah Dugan Alex Saputa

  2. Contents • Block Diagram • Schematic • Equipment • Data Collection • Results • Conclusion

  3. Block Diagram of Cooling Tower Air Outlet DH >0 P= 1 atm W= 0 Air Air Inlet CTunit Chilled WS DH <0 CW Chilled WR

  4. Cooling Tower Schematic from Side View Exhaust B Exhaust A Outside Intake OutsideIntake Inside Intake Outside Inlet B Outside Inlet A Inner Inlet B Inner Inlet A

  5. Schematic of Exhaust Fan 0.22 ft 0.72 ft 1.22 ft *Distances measured from center of fan

  6. Equipment • Anemometer • Yard Stick • Ladder • Sling Psychrometer • Psychrometric Chart

  7. Radial Dependence of Temperature for Week 1

  8. Radial Dependence of Temperature for Week 1 Post the velocities of the first week on the spread sheet plz <3

  9. Radial Dependence of Temperature for Week 2

  10. Radial Dependence of Temperature for Week 2

  11. Average Air Velocity for Week 1

  12. Average Air Velocity for Week 1 Post the velocities of the first week on the spread sheet plz <3

  13. Average Air Velocityfor Week 2

  14. Average Air Velocityfor Week 2

  15. Calculating the Cross-Sectional Area r1= 0.22 ft r2= 0.72 ft r3= 1.22 ft r4= 1.30 ft r1 r2 r3 r4 R1 R2 A1= π*(R2² - R1²) A2= π*(R3² - R2²) A3= π*(R4² - R3²) R3 R4

  16. Formulas To Solve: • Volumetric Flow Rate = cross-sectional area* measured velocity • Mass Flow Rate = volumetric flow rate * density • Heat = mass flow rate * change in enthalpy • Density is found by taking the inverse of Humid Volume, found on Psychrometric chart

  17. Comparative Volumetric Flow for Each Exhaust Fan

  18. Comparative Volumetric Flow for Each Exhaust Fan

  19. Mass Flow Rate Per Fan

  20. Mass Flow Rate Per Fan

  21. Calculating Enthalpy from Psychrometric Chart

  22. Enthalpy for Inlet and Exhaust Fans

  23. Heat Generated

  24. Heat Generated

  25. Heat Generated

  26. Change to bar graph***

  27. Starts per Unit

  28. Run Time per Unit

  29. Conclusions • Velocity is the lowest near the center of the exhaust fan • Unit A carries a load of approximately 70 tons (+- 6 tons)

  30. Comments

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