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 Inlet Air Outlet ThqPHThqPH TPTP CT unit

4. Cooling Tower Schematic Outside Intake Inside Intake Exhaust

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

8. Radial dep vs temp expt 1

9. Average Velocity Per Cross- Section

10. Average Cross-Sectional Air Flow

11. Average Volumetric Flow

12. Volumetric Flow How to solve for with formulas and trapezoidal rule Don’t forget results from expt 1

13. Volumetric Flow (cu. ft/min) results

14. Dry Bulb Air Intake Temperature Intake Temp ( ° F) InsideOutside Fan#194.595.7 Fan#293.695.3 Fan#391.293.1 Fan#490.190.5 Average92.493.7

15. Humidity Tell about relative humidity (data taken) Absolute humidity being same in and out RH from psychrometric chart enthalpy

16. Mass Flow Rate *check density at exit temp Radial Section (in) Cross-Sectional Area (ft²) Density (lbm/ft³) Avg Velocity (ft/min) Mass Flow Rate (lbm/min) 10.150.06995165.4 71.620.06992162222.1 134.670.06992110449.9 Mf = (density)*(area)*(velocity)

17. Heat Generated

18. Compressor Run Times Date AB 8/20/200 8Starts1915 Running hours30392887 8/21/200 8Starts1917 Running hours30602890 8/22/200 8Starts1919 Running hours30812891 8/25/200 8Starts1923 Running hours31252920

19. Block Diagram With values that have been solved for

20. Conclusions Temperature is highest at the center of the fan and lowest surrounding the edges Velocity is the least in the center of the exhaust

21. Comments