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Habitat for Humanity

Habitat for Humanity. Final Presentation May 3, 2002. Introduction. Team Structure Solar Team Solar powered attic fan H.E.A.T. Team Substandard Housing Blower Door Guide to Energy Efficient Construction Database Team Point of Sales Database. The Solar Project. Team Members:

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Habitat for Humanity

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  1. Habitat for Humanity Final Presentation May 3, 2002

  2. Introduction • Team Structure • Solar Team • Solar powered attic fan • H.E.A.T. Team • Substandard Housing • Blower Door • Guide to Energy Efficient Construction • Database Team • Point of Sales Database

  3. The Solar Project • Team Members: • Mike Schilz • Matt Selvey • Anshul Mangal • Vijay Murugesan

  4. The Solar Project • Purpose of the solar powered attic fan • Attic Ventilation • Research possible uses of solar energy in Habitat homes • Main Components: • Solar Panel, Tracking System, Charge Controller, Battery, Fan

  5. The Solar Project

  6. The Solar Project:The Tracking System • Tracks movement of sun across the sky • Light sensing diodes • Diodes are summed and compared • Solar panel rotates to maximize energy production • Motor is initiated by differences in diodes to change panel orientation

  7. The Solar Project:The Charge Controller • Regulates charge going to battery • Switching device • LEDs to show battery charging/charged • Safety device for battery • Prevents back current • Fuse for safety • Acts as the “Brain” for the device • Conserving power • Equalizing switch

  8. The Solar Project:The Mounting Device • Mechanism to mount solar panel to a roof • Major Concerns: • Adapting to roofs with different angles • Environmental concerns: weather and wildlife • Solutions: • Aluminum construction • Adjustable mounting panels

  9. The Solar Project:Semester Accomplishments • Finished tracking system • Finished charge controller • Designed mounting mechanism • Built prototype • Did preliminary testing of solar panel output – Data Acquisition Card

  10. The Solar Project:Plans for the Future • Prototype will be mounted on the roof of Habitat For Humanity resale store for testing • We will be evaluating the prototypes effectiveness by measuring the temperature of the attic • We will also be evaluating the solar panels output during different points of the day

  11. H.E.A.T. TeamHome Efficiency & Analysis Team • Semester Projects • Substandard Housing • Blower Door Testing • Guide to Energy Efficient Construction (GEEC)

  12. Substandard Housing • Motivation • Habitat for Humanity International’s 21st Century Challenge. • Goal • Identify substandard housing in Lafayette. • Method • Determine houses to be evaluated. • Formulate a rating system for foundation, exterior walls & windows, landscaping, roofing and overall appearance. • Rate housing using detailed rating system. • Complete Prospect File for rated house.

  13. Substandard Housing • Lafayette area homes were previously evaluated on standardize scale.

  14. Substandard Housing • Detailed Rating System • Rating system for foundation, exterior walls & windows, landscaping and roofing. • Based off of Property Maintenance Code 1998

  15. Substandard Housing

  16. Substandard Housing • Next Semester • Use detailed rating system on houses in study area. • Complete Prospect File • Possible database project in maintenance of Prospect Files??

  17. Blower Door Testing • Goal • Measure Effective Leakage Area of house • Purpose • Quantify tightness of house • Method • Create partial vacuum in house with known airflow through fan, measure differential pressure • Results • ELA = 66.4 in2 • House is tight enough to prevent excessive heat loss while allowing proper ventilation

  18. Guide to Energy Efficient Construction • Goal • Provide HFH affiliates with design, construction, and maintenance information that will reduce energy consumption of house • Method • Include analyses from previous EPICS groups (Spring 1999 – present) and research on home construction and maintenance

  19. Guide to Energy Efficient Construction

  20. Purpose Track inventory and donors in the Habitat resale store Increase the organization and maintainability of the resale store Potential addition to resale stores at other HFH locations Point of Sales Database

  21. Point of Sales Database Bar Coding System • Utilize hand held bar code scanner w/ keyboard wedge • Bar code labeling software • Interface to database using Visual Basic

  22. Point of Sales Database • Design • The user will login into system • User information is stored in a separate Access database and can be changed in the login menu • Once logged in, users will be interfaced with the product database via Visual Basic • Users will be able to view, edit, delete, and add new product information • Options available based on administrator privileges

  23. Point of Sales Database • Users will also be able to search and display specific information about products • Each product will be labeled with a unique bar code • Current Status • The Visual Basic interface to Access database and the Bar Code system is complete and in the testing phase

  24. Point of Sales Database • Future • Deployment of the Beta version • Collect feedback and track bugs • Further debugging based on feedback

  25. Conclusion Major Accomplishments: • Formed new team (H.E.A.T.) • Initialized new projects (GEEC and substandard housing identification) • Realized new vision of resale store database • Completed solar powered attic fan

  26. Any Questions???

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