Carbon Sequestration by ewghwehws

VIEWS: 5 PAGES: 20

									Carbon Sequestration

       CE 394K.2
    Juan Moran-Lopez
            Quote of the Day
   “I’m not a prophet or a stone-age man,
    just a mortal with potential of a superman.
    I’m living on. I’m tethered to the logic of
    homo sapien, can’t take my eyes off the
    great salvation of (false) faith. If I don’t
    explain what you ought to know, you can
    tell me all about it in the next bardo.”
                                   —David Bowie
                    Outline
   Mechanics of CO2 and climate change

   Solar Panels

   Reforestation

   Conclusion
                       Radiation Balance




http://www.uwsp.edu/gEo/faculty/ritter/images/atmosphere/energy/radiation_balance_usgs_large.jpg
Electromagnetic Radiation
                            Why CO2?
   “Water Vapor is the most abundant greenhouse
    gas in the atmosphere…”—NCDC


     Gas removed               % Reduction in GE
     H2O                                                            36%
     CO2                                                            12%
     O3                                                              3%
Source: Ramanathan and Coakley, Rev. Geophys and Space Phys., 16 465 (1978)
Quantum Mechanics

         Molecular degrees of freedom
                  Trans.   Rot.   Vib.

         Linear   3        2      3N-5
         (CO2)
         Non-     3        3      3N-6
         Linear
         (H2O)
         Effects of CO2 buildup
   Positive feedback cycle of global warming

   Acidification of oceans

   Increase in vegetative growth
Study Area: Austin, TX
                 Austin Power Production
                                     Austin Energy Power Plants

              1000

               800
 Power (MW)




               600

               400

               200

                 0
                     Holly Plant*   Decker   Sand Hill   Fayette   South     Renewable
                                    Creek                          Texas      Energy
                                                                   Project

http://www.austinenergy.com/About%20Us/Company%20Profile/powerPlants.htm
                      Austin Emissions




http://www.texasep.org/html/air/air_4iss_txco2.html
Austin and Surrounding Area
                      Land Use Classifications

                     2003 General Landuse
                     GENLU2003
                          Single-Family
                          Mobile Homes
                          Large-lot Single Family
                          Multi-Family
                          Commercial
                          Office
                          Industrial
                          Resource Extraction (mining)
                          Civic
                          Open Space
                          Transportation
                          Streets and Roads
                          Utilities
                          Undeveloped
                          Water
                          Unknown
                                           Single-Family
                        Area Percentages
             0%                            Mobile Homes
                                           Large-Lot Single Family
        2%        12%
                                           Multi-family
                        2%
                                           Commercial
                                           Office
                                           Industrial
42%                          19%           Resource Extraction (mining)
                                           Civic
                                           Open Space
                         1%                Transportation
                         1%
                        1%
                       1%                  Streets and Roads
                      1%
                     1%
      0% 6% 1%    10%                      Utilities
                                           Undeveloped
                                           Water
                                           Unknown
Land Use                   Area (sq ft)       Area (sq m)

Ideal Solar Panel Area         21236983290         1.97E+09


Buildings                       734243743.7        6.82E+07

Ideal Reforestation Area      4224320709.35        3.92E+08
                Solar Panels
   Austin irradiance is 5.26 kW-h/m2/day
    This is a “Good” rating for solar power

   Estimated Available Area: 68.2 km2

   Online Example
            Possible Energy Production

                            Solar Energy Scenarios

           3500
                                                                     2989.9
           3000
           2500
MW-h/day




           2000                                    1495.0
           1500
           1000                     747.5
           500     149.5
             0
                  1% Area         5% Area        10% Area           20% Area
                            % of building area using solar panels
       Net Primary Productivity
                                       Single-Family
                    Area Percentages
                                       Mobile Homes
             0%
                                       Large-Lot Single Family
        2%        12%                  Multi-family
                        2%             Commercial
                                       Office
                                       Industrial
                                       Resource Extraction (mining)
42%                          19%
                                       Civic
                                       Open Space
                                       Transportation
                            1%         Streets and Roads
                           1%
                           1%
                          1%           Utilities
                         1%
                        1%             Undeveloped
      0% 6% 1%    10%                  Water
                                       Unknown
                      Net Primary Productivity
        MODIS Land Data
                     Net Primary Productivity

          1.2
        611km         X 61 km
    kgC/m2/yr




                0.8
                0.6
        Centered at Main
                0.4

         Building
          0.2
            0
         Lat: 30.286 2001
            1999  2000              2002    2003     2004     2005    2006   2007

         Long: -97.74                       Year

                                 Mean      Minimum          Maximum
Possible Carbon Sequestration
                                   Carbon Fixing Scenarios

                     50000
Tons of C per year




                     37500

                     25000

                     12500

                        0
                             1% Area     5% Area        10% Area     20% Area
                                        % of Ideal Vegetative Area
             Conclusions
 Austin can produce almost 1500 MW-
  h/day with only 10% of building area
  covered with solar panels
 Trees in 20% of open areas can sequester
  almost 40,000 tons of Carbon per year

								
To top