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Team 13—GeoMELT

Team 13—GeoMELT. 03.05.2010. The Team. Outline. Project Overview Background Goals Major Accomplishments Major Design Decisions Design Process Future Work Obstacles Significant Changes Design Norms Decision Validity Acknowledgements Questions. Project Overview.

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Team 13—GeoMELT

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  1. Team 13—GeoMELT 03.05.2010

  2. The Team

  3. Outline • Project Overview • Background • Goals • Major Accomplishments • Major Design Decisions • Design Process • Future Work • Obstacles • Significant Changes • Design Norms • Decision Validity • Acknowledgements • Questions

  4. Project Overview Michigan receives ≈ 72 inches of snow annually Lake-effect snow can lead to severe storms, but Calvin never cancels class! http://www.duluthstreams.org/understanding/lake_effect.html

  5. Project Overview • Problems with the Burton St. Entrance to Calvin • Intersection is dangerous to plow during the daytime • Safety for Pedestrians and Vehicles • Maybe a snowmelt system would be a good solution • What kind of snowmelt system? • Conventional Snowmelt systems typically near buildings • Conventional systems also rely on fossil fuels. • Why not use Geothermal energy? • Some electric energy is used to move energy from the earth to the desired surface. • This would mean a green solution to the problem with really low operating costs. Let’s check it out!

  6. Project Overview • Primary Goal: To design and give a recommendation for a geothermal snowmelt system at Calvin’s Burton Street Entrance (learn) • Secondary Goal: To design and construct a small model to demonstrate the operation of a geothermal snowmelt system

  7. Major Accomplishments

  8. Major Accomplishments • Soil Boring • 10 feet down • Noticed stratification of soils • Installed Thermocouples • Still gathering temperatures

  9. Major Accomplishments Sample A Sample B • 5 ft down • Clayey Sand • 7.5 ft down • Fine sand w/ some Clay

  10. Major Accomplishments

  11. Major Accomplishments

  12. Major Accomplishments http://www.bing.com/maps • Decisions about site layout • Where to place the field of horizontal pipes? • How much pavement should we melt? • What obstacles do we have to work around? • Large trees? • Pipes? • Fiber Optic Lines?

  13. Major Accomplishments • AutoCAD Drawings of Site Layout • Area of horizontal field • 10,000 ft2 • Area of pavement to melt • 4000 ft2 • Size of pump house is • Approx 15ft x 15 ft

  14. Major Accomplishments

  15. Major Accomplishments • Cost Estimates

  16. Major Design Decisions • Pump house location • Pipe Selection • Pipe spacing: 9” • Pipe diameter: 3/4” • Ground Source Heat Pump definitely needed

  17. Design Process • Why a heat pump is needed • Horizontal advantages • Unbalanced Load • Cost • Loop design and limitations

  18. Future Work • Model preparation and assembly • System specifications (pump models, pipe from supplier, heat exchanger specifics) • Alternative comparison(s)

  19. Obstacles We Overcame • Our Major Accomplishments • EES equations • Battling the elements while taking data

  20. Obstacles Yet to Overcome • Horizontal loop details • Alternative options • Detailed Cost Estimates

  21. Changes in Project Direction • Initial outlook: this could be great possibility • Current outlook: this is outrageous

  22. Design Norms • Stewardship • Save on energy and reduce fossil fuel use • Balance needs and wants with cost and necessity • Caring • Increase safety for pedestrians and vehicles • Transparency • Operational clarity and explanation • Our recommendation: The bare truth

  23. Validation of Decisions • Experienced Engineers • Uponor tables • ASHRAE calculations and examples

  24. Acknowledgements • Trent DeBoer, GMB Engineering • Steve Schultz, GMB Engineering • Charles Huizinga, Calvin College Physical Plant • Marc Huizinga, Calvin College Physical Plant • Professor Nielsen, Team Advisor • Gary Slykhouse, City of GR Engineering Dept. • Bob Bruggink, of Moore & Bruggink

  25. Questions • Now is the time, here is the place. Carpe Diem

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