1. PV Thermal Systems Energy Producing Buildings Presented By:
John Hollick, Conserval Engineering Inc Conserval Engineering
Inc.
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. 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. 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. 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. 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. 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. Industrial 1 1. Steelcare - Ontario 2. Sainsbury
Distribution Center, Pineham UK 3. Worlds Largest Solar Collector -
Bombardiers Canadair Assembly Plant - Quebec 2 3 8 Conserval
Engineering Inc.
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. 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. 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. Schools 1 1. Ecole Du Tournant Quebec 2. Delta School BC 3.
Shandong University - China 2 3 12 Conserval Engineering Inc.
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. Government Agencies 1 1. NASAs Dryden Flight Research
Center - CA 2. Health Canada - ON 3. Environmental Protection
Agency (EPA) - CO 2 3 14 Conserval Engineering Inc.
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. 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. 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. Rooftop Solar Collector 18 Conserval Engineering Inc.
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. Building Integrated PV Problems integrating PV solar into a
building. Heat buildup under PV modules 90F (50C) 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. 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. The 50% Roof Conserval Engineering Inc.
23. SolarWall behind PV Cools PV panels by removing heat
Conserval Engineering Inc.
24. Performance Testing Tests conducted at Canadas 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. PV on SOLARWALL test panel Evergreen BP UniSolar Conserval
Engineering Inc.
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. Test Results Air Flow PV PV Actual Thermal Thermal T rise
Total 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. 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 (30 Tilt) (Vertical) (Vertical) (30 Tilt) Conserval
Engineering Inc.
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 (30 (Vertical) (Vertical) (30 Tilt)
(Vertical) Tilt) Solar Technology, Tilt Angle Conserval Engineering
Inc.
30. PV/T Mounting Options Conserval Engineering Inc.
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. Solar Thermal PV Installations Chewonki Foundation Center
for Environmental Education, Maine Beeler residence, California
Conserval Engineering Inc.
33. Concordia University, Montreal 25 kW PV, 75 kW thermal
Conserval Engineering Inc.
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. 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. Conserval Engineering Inc. 200 Wildcat Rd. Toronto, ON M3J
2N5 Tel: 416.661.7057 Email: [email protected] www.solarwall.com
www.OntarioPV.com Conserval Engineering Inc.
