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Cal Poly Nano Hydro

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Cal Poly Nano Hydro Cal Poly Nano Hydro By Brandon N. Fujio Alex J. Sobel Andrew F. Del Prete Mechanical Engineering Department California Polytechnic State University San Luis Obispo 2013 Statement of Disclaimer Since this project is a result of a class assignment, it has been graded and accepted as fulfillment of the course requirements. Acceptance does not imply technical accuracy or reliability. Any use of information in this report is done at the risk of the user. These risks may include catastrophic failure of the device or infringement of patent or copyright laws. California Polytechnic State University at San Luis Obispo and its staff cannot be held liable for any use or misuse of the project. Table of Contents Executive Summary ....................................................................................................................................... 1 Chapter 1: Introduction ................................................................................................................................ 5 1.1 Background and Needs ....................................................................................................................... 5 1.2 Problem Definition .............................................................................................................................. 6 1.3 Objective/Specification Development ................................................................................................ 6 1.4 Project Management .......................................................................................................................... 6 Chapter 2: Background ................................................................................................................................. 7 2.1 Existing Products ................................................................................................................................. 8 2.2 Current State of the Art ...................................................................................................................... 8 2.3 Applicable Standards .......................................................................................................................... 9 Chapter 3: Design Development ................................................................................................................. 10 3.1 Discussion of Conceptual Design and Selection ................................................................................ 10 3.1.1 Turbine Selection ....................................................................................................................... 10 3.1.2 Turbine Implementation ............................................................................................................ 14 3.1.3 Generator Selection ................................................................................................................... 15 3.2 Preliminary Analysis .......................................................................................................................... 16 Chapter 4: Final Design ............................................................................................................................... 16 4.1 Overall Description............................................................................................................................ 17 4.2 Detailed Design Description .............................................................................................................. 17 4.2.1 Frame ......................................................................................................................................... 17 4.2.2 Platform ..................................................................................................................................... 17 4.2.3 Pontoons .................................................................................................................................... 18 4.2.4 Generator ................................................................................................................................... 18 4.2.5 Shaft ........................................................................................................................................... 18 4.2.6 Electronics Housing .................................................................................................................... 19 4.2.7 Gorlov Helical Turbine ................................................................................................................ 19 4.3 Analysis Results ................................................................................................................................. 22 4.4 Cost Analysis ..................................................................................................................................... 22 4.5 Maintenance and Repair ................................................................................................................... 23 Chapter 5: Product Realization ................................................................................................................... 23 5.1 Pontoon ............................................................................................................................................. 23 5.2 Turbine .............................................................................................................................................. 25 5.3 Chassis ............................................................................................................................................... 27 Chapter 6: Design Verification .................................................................................................................... 29 6.1 Turbine Testing ............................................................................................................................... 30 6.1.1 Weir Flow Test ........................................................................................................................... 30 6.1.2 Morro Bay Testing ...................................................................................................................... 30 6.1.3 Wind Tunnel Testing .................................................................................................................. 31 6.1.4 Testing Results ........................................................................................................................... 32 6.2 Raft Testing ....................................................................................................................................... 35 6.3 Generator Testing ............................................................................................................................. 36 Chapter 7: Conclusion and Recommendations ........................................................................................... 36 7.1 Component Redesign ........................................................................................................................ 36 7.2 Reduce Constraints ........................................................................................................................... 37 References .................................................................................................................................................. 38 Appendix A: Decision Matrix ................................................................................................................... 39 Appendix B: Detail Drawings ................................................................................................................... 42 Appendix C: Vendors, Contact information, Pricing ............................................................................... 63 Appendix D: Gantt Chart ......................................................................................................................... 64 Appendix E: Detailed Analysis ................................................................................................................. 65 Testing Data and Results ..................................................................................................................... 65 Theoretical Power Calculations .......................................................................................................... 67 Gorlov Helical Turbine Sizing .............................................................................................................. 69 Design Analysis- Floatation ................................................................................................................. 70 Design Analysis- Shaft Deflection........................................................................................................ 72 Design Analysis- Bearing Calculation .................................................................................................. 73 Design Analysis- Plate Deflection ........................................................................................................ 74 Dimensional Analysis .......................................................................................................................... 75 List of Figures Figure 1: BackPack Power Plant by Bourne Energy ...................................................................................... 9 Figure 2: Pelton Wheel ...............................................................................................................................
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