1211_SolarThermal by gstec

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									                    Sunmaxx Solar

             PRESENTS
     “SUNMAXX UNIVERSITY”
   Solar thermal introduction and
 associated benefits for Universities
            and Colleges

Presented by: Edward Gunn
Sunmaxx Solar Education
Sales Manager
                          Agenda
• About SunMaxx Solar
• The science behind solar thermal
• An introduction to solar thermal
  systems
• Critical considerations
• Reference Installations
• Q and A
Our Mission
The Mission of SunMaxx Solar is to:
• Help build a sustainable future for the global
  economy
• Offer world-class solar energy products
• Pioneer the development and distribution of new
  solar energy technologies
• Provide an educational network for our
  customers
University- Why Solar Thermal?
• Systems can save 30 to 50% utility costs of
  residence/dorms which equates to increased
  revenue streams for University.
• Reduced green house gas emissions.
• Increase enrollment marketing to
  green/sustainable applicants.
• Renewable programs for educational platforms.
• Sustainability /CAP goals
THE SCIENCE BEHIND SOLAR THERMAL
 – Solar thermal technology uses the sun’s energy,
   rather than fossil fuels, to generate low-cost,
   environmentally friendly thermal energy. This
   energy is used to heat water or other fluids, and
   can also power solar cooling systems. Solar
   thermal systems differ from solar photovoltaic
   (PV) systems, which generate electricity rather
   than heat. SHW generates kwh at ~.86 cents vs
   Solar PV which is $4 kwh!!
1 IN EVERY 3 HOUSES HAS SOLAR IN GERMANY / CHINA. IT’S
                                              Where is this?
GOVERNMENT MANDATE NEW CONSTRUCTION HAVE 10% RENEWABLE
SHW.
U.S./Germany Comparison
Types of Solar Thermal Collectors
 unglazed   evacuated tubes   flat plates
Pool Heaters
Pros              Cons
Inexpensive       Limited lifespan
Efficient         Only warm months
Easy to install   No gov’t incentives
Solar Ratings Certification Corp
• The USA standard for measuring performance
• Facility located in Central Florida
• Data obtained from actual testing of collector
• Data can be accessed on their website
• Collectors are also tested for damage due to
  stagnation
• Certifications needed for tax incentives
                                  TitanPower Plus-SU
•Header-riser/Harp style
•Connect directly to each other
•Can put 10 in series
•Stainless Steel Frame
•Textured glass
•Tempered glass
•20 year warranty
TiNOX Absorber Coating
             Task X certified to provide at
             least 95% of original output
             even after 25 years

             Green Manufacture
             •Very few resources
             are consumed
             •No emissions
             •No toxic waste
             •Substrate can be recycled
Evacuated Tubes
Advantage – Vacuum Insulation
Advantage - Angle of Insolation
ThermoPower VHP
                 Vacuum Heat Pipe




                                    Especially suitable for
                                    colder climates and low
                                    insolation caused by cloudy
                                    or shady conditions


•1 tube = 1 ft2 of aperture
•Maximum 150 tubes in series
           How Heat Pipes Work

MANIFOLD
Vacuum Loss
ThermoPower VHP Performance
ThermoPower VDF Mounting Options




                                   Vertical Mounting
Bainbridge Training Facility
                 Collector Efficiency

                                        Graph does not
                                        show negative
EFFICIENCY (%)
                                        numbers for
                                        temperature
                                        difference, but
                                        collectors can
                                        be even more
                                        efficient to the
                                        left of the Y
                                        intercept

                     Ti – Ta (°F)
             Flat Plates vs. Tubes
                   Quick Pros & Cons

Flat Plates                   Evacuated Tubes
•Proven history               •High temperature
•Slightly less expensive      applications
•Low target temperatures      •More efficient at colder and
•Can be integrated into the   low sun conditions
roof                          •Snow may be an issue
•Less fragile                 •Less wind resistance when
•Higher replacement cost      mounted at an angle
•Take up less roof space      •Can be a one person install
Load vs. Production
               Storage Medium
Water is the most common
storage medium
•it is cheap
•It is fluid
•It has a high specific heat
•It has a high thermal
conductivity compared to
many liquids
Butler Wand

              Internal Heat Exchangers




                      StorMaxx NP



                   StorMaxx SE
Closed Loop Glycol w/Steamback
                          Heat Transfer Fluid
               SunMaxx Solar Glycol XT
               •50% 1,3-Propanediol solution
               •Higher thermal conductivity than propylene glycol
               •Temperature range: -27°C/-17°F to 176°C/349°F
               •5 year life span
               •Less expensive than propylene glycol




Made in the U.S.A.
Drainback
DHW Tie-In
DHW Retrofit Existing
DHW Tankless/On-Demand Tie-In
Flat Plates
Pole Mount
Ridge Mount
SunMaxx Ballast Trays at Westchester
    County Community College
YMCA
Binghamton, NY
Eastern Energy Solutions
300 tubes = 1,000,000 btu/day
Sizing a System –site survey- software
              Commercial Kits
•SunMaxx has commercial per packaged kits
sized for 500 gal to 5000 gal a day loads equating
to 200 sqft to 2400 sqft of collector.
• Streamlines sizing/engineering/sales process
                      Other State Incentives
http://www.dsireusa.org/
            Harvard - Canady Hall
Installation Photo:    Description:
                       • 100 TitanpowerPlusSU2 flat
                         plates
                       • Offsetting DHW with30%
                         solar fraction
                       • Produces 620 MBTU or
                         4428 gallons of oil
                       • 18% ARR with 5 year
                         payback
         Richard Stockton College
Installation Photo:   Description:
                      • 3 student residence
                        buildings 30- TPP20 panels
                        each (90 total) with NP tank
                        in each building.
                      • Offset DHW load with 30%
                        solar fraction or offset 30%
                        of yearly utility for DHW.
                      • Total production – 558
                        MBTU or 4650 therms
                      • ARR 11% - 7 year payback
          NJIT-Oak Hall Dormitory
Installation Photo:   Description:
                      • 42 VHP30s (1260 tubes)
                        with 2500 gal NP tank.
                      • Offsets DHW load 40% solar
                        fraction.
                      • 450 MBTU per year or
                        ~3,000 gal oil.
                      • ARR 18% w/ 6 year payback.
                      • System cost ~$100,000.
Cornell Plantations
Fort Hood, TX
University / College Applications
DHW and Pool Heating
  – Dorms/residence halls, Field Houses (pools), Laundry
    rooms
  – Offset 30-60% load (solar fraction) which equates to
    financial savings which can be allocated on other
    initiatives /budgets or programs.
  – Savings expected at ARR 6% to 30% depending on fuel
    source, location, load profile, private/state inst.
  – Sustainable minded applicants (culture) more prevalent.
  – Systems can be incorporated into training /educational
    platforms.
  Monitoring and Maintenance
• Monitoring: real time online monitoring of
  system is available. Ability to view
  output/production as well as technical
  performance to address any issues immediately.
• Solar thermal systems have very little
  maintenance when compared to conventional
  heating systems. O and M is ~.5% yearly and
  typically only glycol needs to be changed every 5-
  7 years.
Solar Thermal – University demand
• Sunmaxx works with a number of technology
  schools to help with curriculum and training
  materials/products. Large demand for
  renewable programs (job creation).
• http://www.sunmaxxsolar.com/sunmaxx-
  education-services.php (see info and
  partners).
SunMaxx Website as a Resource

								
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