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PV Thermal Systems
                      Energy Producing Buildings

Presented By: John Hollick, Conserval Engineering Inc...
PV / Thermal

Combines two great solar technologies
     - solar photovoltaic and
     - solar air heating
into one foot p...
SolarWall – Solar Air Heating
SolarWall is an unglazed all metal
solar heater for ventilation air
Typical applications are...
TYPICAL MASONRY WALL INSTALLATION



•J-Bars fasten to wall at perimeter
•Support J-Bars with clips

•Fasten Hat Clips to ...
Fresh air is heated as it is pulled through the
perforations and into the air cavity




                           OUTSID...
HVAC heats the air to the desired temperature and
then distributes air into the building
                       HVAC SYSTE...
Typical Applications
• A general rule of thumb is that if your
  building requires heat, you can benefit
  from solar air ...
Industrial
1        1. Steelcare - Ontario
         2. Sainsbury Distribution Center,
         Pineham – UK
         3. Wo...
Retail Buildings
1
           1. Winner of the 2001 AIA Top 10 Green
           Projects Award - BigHorn Home
           I...
Maintenance Facilities
1
                     1. Enbridge – Toronto, ON
                     2. Transit Garage – Gera,
   ...
Military
1
          1. U.S. Military Fort Drum – NY
          2. U.S. Military Fort Carson – CO
          3. U.S. Militar...
Schools
1
         1. Ecole Du Tournant – Quebec
         2. Delta School – BC
         3. Shandong University - China



...
Municipal Buildings
1             1. Hibbing Courthouse - MN
              2. Willow Springs Firehall - NC
              3...
Government Agencies
1              1. NASA’s Dryden Flight
               Research Center - CA
               2. Health Ca...
Apartment Buildings
1            1. Mansard Roof - Germany
             2. Manchester Housing - BC
             3. Windsor...
Agriculture
          1. Walnuts – California
1
          2. Chicken Barn – Canada
          3. Tobacco – Caribbean
      ...
Rooftop Application
• Solar air heating is not confined to just wall
  mounted applications, also available for rooftop
  ...
Rooftop Solar Collector




                                       18
              Conserval Engineering Inc.
SolarDuct Connects to HVAC




    • Acts as a front end system to an HVAC
    • Pre-heats air before entering the HVAC


...
Building Integrated PV

Problems integrating PV solar into a building.

    • Heat buildup under PV modules – 90°F (50°C) ...
The 12% PV Roof
• Typical PV modules have efficiencies of 10% to 15%
• Remaining energy produced is heat, which is neither...
The 50% Roof




         Conserval Engineering Inc.
SolarWall behind PV
Cools PV panels by removing heat




                    Conserval Engineering Inc.
Performance Testing
• Tests conducted at Canada’s National Solar Test Facility.

• Panels from BP Solar, Evergreen Solar &...
PV on SOLARWALL test panel




  Evergreen    BP               UniSolar




                    Conserval Engineering Inc.
PV Panel Heat Produced

• AIR TEMPERATURE RISE @ 2 CFM/FT2
• NOCT Test Conditions


Collector Type                 [°C]
• ...
Test Results

     Air Flow PV   PVη Actual Thermal   Thermal η   T rise Total η

      CFM    W         %        W       ...
PV vs. PV/T Great Lakes Area

                          Renewable Energy Production

                  800.0


           ...
PV vs. PV/T Great Lakes Area

                                          CO2 Emissions Reduction
Yearly Tons of CO2 for per...
PV/T Mounting Options




                Conserval Engineering Inc.
Advantages of PV/T Racking
• SolarDuct replaces PV racking system
• Enclosed back on SolarDuct unit
  prevents wind uplift...
Solar Thermal PV Installations




Chewonki Foundation Center for Environmental Education, Maine




   Beeler residence, ...
Concordia University, Montreal




     25 kW PV, 75 kW thermal

                     Conserval Engineering Inc.
Beijing Olympic Residence




PV/T - 10 kW PV, 30 kW thermal
                   Conserval Engineering Inc.
Benefits of PV/T
• PV modules produce 150% to 400% more thermal
  energy than electrical energy – why not use it

• With S...
Solar Cogeneration
• Ontario buildings are heated and use electricity
• Get both solar electric and solar heat from the
  ...
Conserval Engineering Inc.
 200 Wildcat Rd.
 Toronto, ON M3J 2N5
 Tel: 416.661.7057



Email: info@solarwall.com

  www.so...
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Post globe 2010 john hollick

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Post globe 2010 john hollick

  1. 1. PV Thermal Systems Energy Producing Buildings Presented By: John Hollick, Conserval Engineering Inc Conserval Engineering Inc.
  2. 2. PV / Thermal Combines two great solar technologies - solar photovoltaic and - solar air heating into one foot print Buildings become energy generators Conserval Engineering Inc.
  3. 3. SolarWall – Solar Air Heating SolarWall is an unglazed all metal solar heater for ventilation air Typical applications are: • Commercial • Manufacturing • Warehouses • Office • Multi-Residential • Municipal Facilities • Schools • Hospitals Conserval Engineering Inc.
  4. 4. TYPICAL MASONRY WALL INSTALLATION •J-Bars fasten to wall at perimeter •Support J-Bars with clips •Fasten Hat Clips to wall •Attach Horizontal Framing •Apply SolarWall Cladding and flashing Conserval Engineering Inc.
  5. 5. Fresh air is heated as it is pulled through the perforations and into the air cavity OUTSIDE AIR IS PASSING HEATED THROUGH ABSORBER Perforation AIR SPACE UNDER NEGATIVE PRESSURE AIR SPACE SOLARWALL PANELS Conserval Engineering Inc.
  6. 6. HVAC heats the air to the desired temperature and then distributes air into the building HVAC SYSTEM SUMMER BYPASS TO DISTRIBUTION SYSTEM AIR SPACE SOLARWALL PANELS Conserval Engineering Inc.
  7. 7. Typical Applications • A general rule of thumb is that if your building requires heat, you can benefit from solar air heating. • The following slides show the wide range of applications for solar air heating: 7 Conserval Engineering Inc.
  8. 8. Industrial 1 1. Steelcare - Ontario 2. Sainsbury Distribution Center, Pineham – UK 3. World’s Largest Solar Collector - Bombardier’s Canadair Assembly Plant - Quebec 2 3 8 Conserval Engineering Inc.
  9. 9. Retail Buildings 1 1. Winner of the 2001 AIA Top 10 Green Projects Award - BigHorn Home Improvement Center – Silverthorne, CO 2. Restaurant – Nagano, Japan 3. Wal-Mart Super Center – Aurora, CO 2 3 9 Conserval Engineering Inc.
  10. 10. Maintenance Facilities 1 1. Enbridge – Toronto, ON 2. Transit Garage – Gera, Germany 3. Calgary Transit Bus Terminal – Calgary, AB 2 3 10 Conserval Engineering Inc.
  11. 11. Military 1 1. U.S. Military Fort Drum – NY 2. U.S. Military Fort Carson – CO 3. U.S. Military Fort Huachuca - AZ 2 3 11 Conserval Engineering Inc.
  12. 12. Schools 1 1. Ecole Du Tournant – Quebec 2. Delta School – BC 3. Shandong University - China 2 3 12 Conserval Engineering Inc.
  13. 13. Municipal Buildings 1 1. Hibbing Courthouse - MN 2. Willow Springs Firehall - NC 3. Rapid City Community Center - SD 2 3 13 Conserval Engineering Inc.
  14. 14. Government Agencies 1 1. NASA’s Dryden Flight Research Center - CA 2. Health Canada - ON 3. Environmental Protection Agency (EPA) - CO 2 3 14 Conserval Engineering Inc.
  15. 15. Apartment Buildings 1 1. Mansard Roof - Germany 2. Manchester Housing - BC 3. Windsor Housing - ON 4. Manitoba Housing - MB 5. Tokyo Apartments - Japan 2 3 4 5 15 Conserval Engineering Inc.
  16. 16. Agriculture 1. Walnuts – California 1 2. Chicken Barn – Canada 3. Tobacco – Caribbean 4. Marigold Flowers – India 5. Manure Drying – New York 2 4 5 3 16 Conserval Engineering Inc.
  17. 17. Rooftop Application • Solar air heating is not confined to just wall mounted applications, also available for rooftop installations • SolarDuct modular rooftop design acts as a solar thermal duct with SolarWall panels on top • Arrays sized according to energy requirements of the building • Preheats ventilation air before it enters rooftop air handling units 17 Conserval Engineering Inc.
  18. 18. Rooftop Solar Collector 18 Conserval Engineering Inc.
  19. 19. SolarDuct Connects to HVAC • Acts as a front end system to an HVAC • Pre-heats air before entering the HVAC Conserval Engineering Inc.
  20. 20. Building Integrated PV Problems integrating PV solar into a building. • Heat buildup under PV modules – 90°F (50°C) over ambient • Structural damage from heat • Lower operating efficiency under high temperature. For each °C in temperature, the power production drops by ~0.5% • Competition for collector space on wall or roof • Economics of PV grid tied systems Conserval Engineering Inc.
  21. 21. The 12% PV Roof • Typical PV modules have efficiencies of 10% to 15% • Remaining energy produced is heat, which is neither captured nor utilized • HVAC units not utilized for solar Conserval Engineering Inc.
  22. 22. The 50% Roof Conserval Engineering Inc.
  23. 23. SolarWall behind PV Cools PV panels by removing heat Conserval Engineering Inc.
  24. 24. Performance Testing • Tests conducted at Canada’s National Solar Test Facility. • Panels from BP Solar, Evergreen Solar & UniSolar tested under NOCT conditions with 10 m2 (108 ft2) SolarWall test panel • PV modules mounted approximately 10mm (3/8”) above the SolarWall test panel • Standard test conditions at NOCT (800 Watts/m2, 1 m/s wind and an open back) & Solar Thermal Conditions (900 Watts/m2 and at 3 m/s wind. • Air Flow heat removal rates selected were 2 cfm/ft2 and 6 cfm/ft2 Conserval Engineering Inc.
  25. 25. PV on SOLARWALL test panel Evergreen BP UniSolar Conserval Engineering Inc.
  26. 26. PV Panel Heat Produced • AIR TEMPERATURE RISE @ 2 CFM/FT2 • NOCT Test Conditions Collector Type [°C] • BP PV/T 15 • Evergreen PV/T 14 • UniSolar PV/T 20 Conserval Engineering Inc.
  27. 27. Test Results Air Flow PV PVη Actual Thermal Thermal η T rise Total η CFM W % W % C % EG 2 746 10.3 1878 23.2 14.4 32.4 BP 2 637 10.4 1954 24.1 15.1 31.9 US 2 477 6.6 2542 31.4 19.7 37.3 US 6 487 6.7 4076 50.4 10.8 56.4 BP 6 627 10.3 3545 43.8 9.4 51.6 EG 6 753 10.3 3229 39.6 8.5 48.8 Conserval Engineering Inc.
  28. 28. PV vs. PV/T Great Lakes Area Renewable Energy Production 800.0 600.0 kWh / year / m2 400.0 200.0 0.0 PV Panels PV/T PV Panels PV/T (30º Tilt) (Vertical) (Vertical) (30º Tilt) Conserval Engineering Inc.
  29. 29. PV vs. PV/T Great Lakes Area CO2 Emissions Reduction Yearly Tons of CO2 for per 100m2 20.0 15.0 10.0 5.0 0.0 SolarWall PV Panels PV Panels PV/T PV/T (30º (Vertical) (Vertical) (30º Tilt) (Vertical) Tilt) Solar Technology, Tilt Angle Conserval Engineering Inc.
  30. 30. PV/T Mounting Options Conserval Engineering Inc.
  31. 31. Advantages of PV/T Racking • SolarDuct replaces PV racking system • Enclosed back on SolarDuct unit prevents wind uplift typical with exposed rack mounted PV • Closed back means less ballast and/or steeper angle for PV array • Increased angle of SolarDuct increases PV output Conserval Engineering Inc.
  32. 32. Solar Thermal PV Installations Chewonki Foundation Center for Environmental Education, Maine Beeler residence, California Conserval Engineering Inc.
  33. 33. Concordia University, Montreal 25 kW PV, 75 kW thermal Conserval Engineering Inc.
  34. 34. Beijing Olympic Residence PV/T - 10 kW PV, 30 kW thermal Conserval Engineering Inc.
  35. 35. Benefits of PV/T • PV modules produce 150% to 400% more thermal energy than electrical energy – why not use it • With SolarWall® panels “inside” combined solar efficiency can exceed 50% • SolarDuct cools PV modules increasing output • PV Thermal maximizes income potential for roof • Electric and thermal energy in one footprint solves problem of which solar technology to use Conserval Engineering Inc.
  36. 36. Solar Cogeneration • Ontario buildings are heated and use electricity • Get both solar electric and solar heat from the same surface 36 Conserval Engineering Inc.
  37. 37. Conserval Engineering Inc. 200 Wildcat Rd. Toronto, ON M3J 2N5 Tel: 416.661.7057 Email: info@solarwall.com www.solarwall.com www.OntarioPV.com Conserval Engineering Inc.

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