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Lawn Sprinkler design

Group 3: Seong Won Byun Jakob Combs Zachary Lightner Bart Sudhoff Devin Templeton. Lawn Sprinkler design. Objective. Provide 1 inch of water to an area of 13,460ft 2 in the shortest time Least amount of water falling outside the property Minimize cost of materials

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Lawn Sprinkler design

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  1. Group 3: Seong Won Byun Jakob Combs Zachary Lightner Bart Sudhoff Devin Templeton Lawn Sprinkler design

  2. Objective • Provide 1 inch of water to an area of 13,460ft2 in the shortest time • Least amount of water falling outside the property • Minimize cost of materials • Minimize electric utility costs

  3. Layout

  4. Layout • Large area used 30-foot radius sprinkler heads • Smaller areas used combination of 18 and 17-foot radius sprinkler heads

  5. Layout • Sprinkler head locations • Circles are 30-foot radius • Outside corners are 270° rotors • Corners and boundary edges are 90° and 180° rotors • All others are 360° rotors

  6. Pipe Layout & AFT Model Pipe Layout for Zone 1 Pipe Layout for Zone 2 Pipe Layout for Zone 3 Sprinkler GPM for Zone 1 Sprinkler GPM for Zone 2 Sprinkler GPM for Zone 3

  7. Sprinkler Parameters • Pressure difference across the component is [Equation 1] • The k-loss value is [Equation 2]

  8. Project Results Table 2: Required Flow Rate and Time to Water for Each Zone 13460 8390 192.5

  9. Cost Analysis

  10. Cost Analysis • Largest cost in the project is the rotor sprinkler heads. • Another major factor for cost is the diameter of pipe.

  11. Summary Project Outcomes: • 56 Sprinkler Heads • Total Material Cost: $1154 • 192 Minutes to Water

  12. References [1] Toksoy, John M., “Sprinkler Project Description”, Microsoft PowerPoint Presentation. Fall 2007. [2] Smajstrla, A.G., Zazueta, F.S. and Haman, D.Z., “Lawn Sprinkler Selection”, http://edis.ifas.ufl.edu/AE084. Accessed on November 2, 2007. [3] Hunter Industries, “I10/I20 Ultra Rotary Sprinklers”, http://www.hunterindustries.com/Products/Rotors/i20intro.html. Accessed on November 12, 2007. [4] Stryker, Jess. “Irrigation Tutorials”. http://irrigationtutorials.com. Accessed on November 12, 2007. [5] Sprinkler Warehouse. http://www.sprinklerwarehouse.com/Default.asp?Redirected=Y. Accessed on November 12, 2007. [6] US Plastics. http://www.usplastic.com/catalog/default.asp?cookie%5Ftest=1. Accessed on November 12, 2007. [7] McMaster-Carr. http://www.mcmaster.com. Accessed on November 12, 2007.

  13. Heat exchanger design

  14. Updates to MATLAB Program • Removed calculations from HE_Design_Input • Tube ID, Tube Pitch, Number of Tubes • Number of tubes when running DOE file • Added Nusselt correlations for both shell and tube side • Added more materials • Entire program can be run from HE_Design_Main

  15. Fixed Parameters

  16. First Design of Experiments

  17. Main Effects for First DOE

  18. Second Design of Experiments

  19. Main Effects for Second DOE

  20. Reduction of Variables Eliminate: Tube OD Shell ID Tube Thickness Lowest Weight Configuration Possible

  21. Final Design of Experiments

  22. PARETO Plots for Final DOE

  23. Minitab Optimization Results

  24. Manual Optimization Results FINAL RESULTS

  25. Heat Transfer Coefficients * Gnielinski for Turbulent Flow, 2300 < Re < 5x106 * JP Holman, “Heat Transfer” 2002, For Turbulent Flow: C=0.386, n=0.592 * Toksoy, “Convection Heat Transfer” TFD-HE2, pg. 9

  26. Tube Thickness Calculate maximum allowable pressure:

  27. Shell Thickness

  28. Final Input Parameters * Correlations added by design group

  29. Questions?

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