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Renewable Energy Tech: Heat and Power

Renewable Energy Tech: Heat and Power. Nathan Siegel Department of Mechanical Engineering Bucknell University Solar Scholars Workshop 5/12/2012. Outline. Energy Usage Heating With Solar Non-Solar Energy Solutions. Energy Usage. Space Heating. Everything Else

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Renewable Energy Tech: Heat and Power

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  1. Renewable Energy Tech: Heat and Power Nathan Siegel Department of Mechanical Engineering Bucknell University Solar Scholars Workshop 5/12/2012

  2. Outline Energy Usage Heating With Solar Non-Solar Energy Solutions

  3. Energy Usage Space Heating Everything Else (TV, Computer, Lights, AC) • What “type” of energy do you use and how much does it cost annually? • Perform a basic audit (Kill-A-Watt), look at utility bills. • Heating can be a major energy cost • Depends on Weather, Construction, Type/Fuel

  4. Estimated Heating Costs 2010-2011 Sandia Park, NM Type: Propane, radiant floor Construction: 2100 ft2 , Frame Constr. (2001) Average Temperature: 42oF Energy: 55 MBtu(91,690 Btu/ga) Heating Cost : $1800 (600 ga at ~$3/ga) or $33/MBtu 2011-2012: New Berlin, PA Type: Oil, forced air, with one room electric baseboard Construction: 1800 ft2 , Brick (~1880) Average Temperature: 39oF Energy: 57 MBTU (139,000 Btu/ga) Heating Cost: $1462 (411 ga at $3.6/ga) or $26/MBtu How quickly would you pay off an alternative heating system? Weather Data: http://www.wunderground.com/cgi-bin/findweather/getForecast?query=zmw:17855.1.99999

  5. Source: http://www.nrel.gov/gis/femp.html#about

  6. Heating With Solar A home designed for solar heating in the winter Source: electrictreehouse.com • A Range of Options • Passive Solar Architecture • Trombe Wall • Solar Air Heater • Solar Liquid Heater • Combination • Storage/No Storage

  7. Heating With Solar A Trombe wall providing heat and storage Source: consumerenergycenter.org • A Range of Options • Passive Solar Architecture • Trombe Wall • Solar Air Heater • Solar Liquid Heater • Combination • Storage/No Storage

  8. Heating With Solar Active solar air heater with rock storage Source: warmair.com • A Range of Options • Passive Solar Architecture • Trombe Wall • Solar Air Heater • Solar Liquid Heater • Combination • Storage/No Storage

  9. DIY Air Heaters Soda can solar air heater Source: rimstar.org Soda can solar air heater Source: Bucknell Solar Scholars • Air heaters can be made from relatively inexpensive materials: • Wood box • Polyiso insulation • Polycarb or glass window • Aluminum cans

  10. Heating With Solar Solar liquid heater schematic for a radiant floor system Source: radiantec.com • A Range of Options • Solar Liquid Heater • Combination • Passive Solar Architecture • Trombe Wall • Solar Air Heater • Storage/No Storage

  11. Heating Liquids: Flat Panel Years of operation in the field Relatively inexpensive

  12. Heating Liquids: Evacuated Tube Sunmaxx 20 evacuated tube heater Sources: siliconsolar.com, www.sunmaxxsolar.com Relatively new technology Low loss Cost (Sunmaxx 30): $1,450 $8/MBtuin Philly over a 25 year service life

  13. Bucknell’s Water Heating System Two Heliodyne panels on Mod 3, Bucknell http://www.heliodyne.com/index.html http://www.heliodyne.com/industry_professionals/downloads/2011%20Product%20Guide.pdf http://linux.bucknell.edu/~altenergy/

  14. Non-Solar Energy Solutions

  15. Biomass: Another Heating Option Steam generator at Evangelical Hospital Sources: L.Z.Leighton http://lancasterfarming.com/news/princesses/-Hospital-s-Biomass-Boiler-Heats-Facilities--Will-Accommodate-Growth- • Carbon neutral • Uses waste • Relatively inexpensive • System Specs • 140 Tons/week wood chips • 18,000 lb/hour steam (60 psig) • Saves $600,000/year • Six to eight year payback

  16. DIY Micro-Hydro Micro hydro with a water wheel • If you have running water, you can make power • All you need are: • Some civil engineering • A turbine wheel • An electric motor (auto alternator) • Pulleys • Wires to the load. http://www.youtube.com/watch?v=OvJW_zNyVCw&feature=related

  17. DIY Micro-Hydro Micro hydro generating station Sources: yousavegreen.com A Pelton wheel turbine generator Sources: energyalternatives.ca http://www.youtube.com/watch?v=TmTGnO_E0pY Buy or make a Pelton Turbine that connects to the generator System runs “around the clock” http://www.youtube.com/watch?v=r7DFDrFbWT4&feature=related

  18. Questions?

  19. Backup

  20. Cost in $/sqft: $48 Sunmaxx specs

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