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Preliminary Design Presentation

Preliminary Design Presentation. Group 5 Arlington, VA Kyle Desrosiers, Foundations Engineer Mohamed Mandeel, Structural Engineer Matthew Switzer, Fluid System Engineer Peter Bowlin, Building Thermal Systems Engineer Evan See, Solar Thermal Systems Engineer. Agenda.

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Preliminary Design Presentation

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  1. Preliminary Design Presentation Group 5 Arlington, VA • Kyle Desrosiers, Foundations Engineer • Mohamed Mandeel, Structural Engineer • Matthew Switzer, Fluid System Engineer • Peter Bowlin, Building Thermal Systems Engineer • Evan See, Solar Thermal Systems Engineer

  2. Agenda Foundations Analysis Roof Truss Analysis Fluid System Analysis Building Thermal Analysis Solar Thermal Analysis Conclusion/Questions

  3. Foundations Analysis Kyle Desrosiers

  4. Foundation Design • Type: Full basement, conditioned • Material: Concrete with steel reinforcements (if necessary), still evaluating • Dimensions: 50ft wide x 26ft long Rectangle • Max depth (relative to ground surface)= 7 ft • (at front of house) • Wall thickness= 10 in.

  5. Foundation Design • Footing: • Width= 16 inches • Location= 1 foot below frost line • Frost line= 10 inches • Radon Mitigation • Action Level: 4 pCi/L • Avg radon level for Arlington County=3.4 pCi/L • Methods: Spray, Air ventilation system, soil depressurization

  6. Foundations- Sources • http://www.askthebuilder.com/N4_Thickness_of_Poured_Concrete_Foundation_Walls.shtml • http://county-radon.info/VA/Arlington.html • http://soildatamart.nrcs.usda.gov/Manuscripts/VA013/0/Arlington.pdf • http://publicecodes.citation.com/st/nc/st/b2v02/st_nc_st_b2v02_18_sec005_par042.htm

  7. Roof Truss Analysis Mohamed Mandeel

  8. Truss Design • Truss Type: Room-in-attic truss • Beam Size: 2”x6” or 2”x4”, still calculating • Number needed: 26 trusses total for 50' of length, spacing of 2' between trusses. • Pro/E model • Calculations are done using Ansys

  9. Basic Room-in-Attic Truss Designed

  10. Fluids System Analysis Matthew Switzer

  11. Basic Storage & Pump Needs • Water Storage Needs • Approx. 1 gal per 1ft2 FPC • Estimated FPC area • 300-400 ft2 • Pump TBD by FPC needs • Most likely a centrifugal pump • Flow rate • Feet of head required

  12. Copper Long term durability Increased resale value Less bulky Corrosion Long Warranties Costly ~http://www.builderswebsource.com/techbriefs/cpvccopper.htm PVC Approved for almost all building codes Resists corrosion/abrasion Cost effective Easy installation 100 psi rated @ 180oF Self-insulating Diameter limitations (1.5”-2” max) “Plastic” water taste Easily Damaged Copper vs PVC

  13. Exchanger Types • Flow Types • Cross Flow • Counter Flow • Most Efficient • Parallel Flow • Multi-pass Exchangers • Combination of flows • Shell and Tube Exchangers • Separate “circuits” of water flow • Number of passes • Size depends on economics and maintenance needs • High pressure & high temperature

  14. Building Thermal Analysis Peter Bowlin

  15. Arlington, Virginia Monthly Weather Data Zip Code: 22201 This is data typical of a moderate to colder climate, so the required R-values of the insulation used will be fairly high.

  16. DOE/CE-0180January 2008Department of EnergyAssistant SecretaryEnergy Efficiency and Renewable Energy Recommended R-Values for Arlington, VA

  17. Variety of Insulation Choices and Combinations

  18. Solar Thermal Analysis Evan See

  19. Possible Supplier Sun Source Energy Products, Inc. PO Box 31 Netcong, NJ 07857 Source: “Logo”. Solar Energy Parts Catalog. 2009, 10/19/09 <http://www.sunsourceproducts.com/catalog/cataloglist.asp?header=mfg&filter=SunEarth%20Inc.&mfg=SE> • Why? • Local to DC • Competitive Prices • Works with several dealers

  20. SunEarth Inc. Collectors - Price EC - Series EP - Series Sun Source Energy Products. Solar Energy Parts Catalog. 2009. 16 October 2009 <http://www.sunsourceproducts.com/catalog/cataloglist.asp?header=mfg&filter=SunEarth%20Inc.&mfg=SE>. More expensive Copper absorber with black chrome surface 10 Year Warranty Less expensive Copper absorber with selective paint surface 10 Year Warranty

  21. SunEarth Inc. Collectors - Price EC - Series EP - Series Sun Source Energy Products. Solar Energy Parts Catalog. 2009. 16 October 2009 <http://www.sunsourceproducts.com/catalog/cataloglist.asp?header=mfg&filter=SunEarth%20Inc.&mfg=SE>. • 24 sq ft • $936.70 • 32 sq ft • $1,060.80 • 40 sq ft • $1,310.00 • 24 sq ft • $890.00 • 32 sq ft • $952.00 • 40 sq ft • $1,180.00

  22. Roof Angle Optimum Roof Angle of 35.5 degrees Optimum Azimuth at 0 degrees (South) Source: FCHART Software Package. 2008

  23. Collector Size Life Cycle savings improves with larger collectors 40 sq ft Collector is recommended Source: FCHART Software Package. 2008

  24. Number of Collectors Peak Value for Life Cycle Savings is 10 Fewer is recommended to save on initial costs and potentially greater savings Source: FCHART Software Package. 2008

  25. Economics Overview Potential for Savings of at least $1000 Can provide all needed DHW and Heat during summer months Economics Summary First Year Fuel Cost $ 378 First Year Fuel Savings $ 239 Initial Investment $ 7400 Life Cycle Savings $ 1324 Life Cycle Costs Fuel $ 13867 Equipment $ 7454 Total $ 21321 Solar Heat Dhw Aux f [10^6 Btu] [10^6 Btu] [10^6 Btu] [10^6 Btu] [ ] Jan 5.69 12.37 2.255 12.47 0.147 Feb 7.20 10.51 2.049 9.43 0.249 Mar 9.33 7.43 2.230 5.64 0.416 Apr 10.03 4.15 2.072 2.24 0.640 May 10.34 1.26 2.028 0.24 0.926 Jun 10.45 0.22 1.867 0.00 1.000 Jul 10.71 0.09 1.838 0.00 1.000 Aug 10.06 0.19 1.820 0.00 1.000 Sep 9.20 0.61 1.801 0.15 0.940 Oct 8.39 4.65 1.950 3.30 0.500 Nov 6.42 7.13 1.997 6.56 0.281 Dec 6.06 12.07 2.160 11.86 0.167 Year 103.87 60.66 24.068 51.89 0.388 Source: FCHART Software Package. 2008

  26. Questions? Thank You

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