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Innovative Stirling Engine Generator for Household Use

Join Team KiloWatt as they present their portable Stirling engine generator project, designed to power multiple household appliances simultaneously. Learn about the team members, background, types of designs, industry products, cost analysis, and risk assessment. Explore the working principles of the Stirling engine, different configurations (Alpha, Beta, Gamma), and industry applications. Witness the cost comparison between Stirling and gas generators and delve into the team's detailed work breakdown structure, Gantt chart, and risk matrix. Follow along as they aim to achieve their goal of creating a functional 2.5 kWh generator. Discover the practicality and efficiency of their innovative design aimed at enhancing energy solutions for everyday use.

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Innovative Stirling Engine Generator for Household Use

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  1. Team KiloWatt A Lot of Heat A Lot of Power

  2. Introduction Team Members • Jeffrey Kung • Richard Sabatini • Steven Ngo • Colton Filthaut Faculty Advisor • Jim Mohrfeld Richard Sabatini Steven Ngo Colton Filthaut Industry Advisor • Craig Kinzelman(Stirling Technology Inc.) Richard Sabatini Steven Ngo Colton Filthaut Underclassmen • Walter Campos

  3. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  4. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  5. Goals • To have a working Stirling Engine that will serve as a portable generator capable of producing 2.5 kWh • To be able to run multiple common household appliances simultaneously

  6. Household Appliances • Appliances (average): • Refrigerator/Freezer = Start up 1500 Watts • Operating = 500-800 watts • Hot plate = 1200 Watts • Toaster oven = 1200 Watts • Space heater = 1500 Watts • Air Conditioner (5,000 BTUH room unit) = 900 Watts • Lights = Most common are 60 watt light bulbs. • Most rooms/areas on breaker boxes consist of 4-5 light bulbs => 240-300 Watts • Tools (average): • ¼” drill = 250 Watts • ½” drill = 750 Watts • 1” drill = 1000 Watts • Electric Chain Saw 11”-16” = 1100-1600 Watts • 7-1/4” Circular Saw = 900 Watts

  7. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  8. Background • Created by Robert Stirling in 1816 • His brother, James Stirling, created a Stirling Engine that powered a foundry • ASE- Automotive Stirling Engine • Program created by NASA and the United States Department of Energy • Incorporated in many submarine applications • Propulsion system • Very quiet • Increased efficiency

  9. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  10. How it Works • The displacer cylinder is heated by an external heat source • The working gas expands in the cylinder creating pressure resulting in movement of the displacer • The working gas forces the displacer in both directions • The cylinder with the power piston compresses and contracts with the change in temperature • This is due to the rejected heat leaving the system through convection • The system restarts this cycle

  11. Generator Flow

  12. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  13. Alpha • Enclosed system with two cylinders that has corresponding pistons which compress and contract with change in temperature

  14. Beta • One cylinder system that encloses one piston and displacer

  15. Gamma • Similar to the Beta but with two cylinders that have a chamber which funnels working gas into the power piston cylinder

  16. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  17. Previous Attempts • Team Gamma • 2010 • Team Alpha Force • 2011

  18. Pros and Cons

  19. Choice of Configuration • Gamma • Cost efficient • No seal required in the displacer cylinder • More versatile with its design • Easy to isolate the cold and hot pistons

  20. Working Gas

  21. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  22. Industry Products • Small Market (Multi-Application) • Largest Market WhisperGen (1 kW) MM-7 (0 kW)

  23. Industry Products (Continued) • Very Small to non- existent market • All designs are singularly produced and fabricated • Relatively Large Market PowerUnit (43 kW) Genoa StirlingEngine (3 KW)

  24. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  25. Cost Analysis

  26. Cost Comparison- Stirling Generator vs. Gas Generator

  27. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  28. WBS

  29. Semester Gantt Chart

  30. Agenda • Goals • Background • What is it/How it Works • Different Types (Alpha, Beta, Gamma) • Choice of Design Parameters • Industry Products • Cost Analysis • WBS/Gantt Chart • Risk Matrix

  31. Risk Matrix

  32. Questions?

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