Recycling - Maybe Not all It was Touted to Be
Solid Waste Solutions
The Pennsylvania Electric Homer City Unit 3 typically consumes approximately 1,600,000 tons of compliance coal per year. The plant purchases approximately 75% of this coal from one supplier and that coal is blended at a coal blending facility owned by the supplier. The remainder of the coal needed for Unit 3 is obtained in the spot market. - http://www.getfilings.com/o0000912057-02-012778.html Subsequent Unit 3 equipment improvements are not modeled and model architecture has been adjusted so fuel combustion operations are closer to Homer City’s original commissioning.
The waste Fuel composition is based on Table 1. Municipal Solid Waste (MSW) Heat Content and Biogenic/Non-Shares, 1989 - 2005 as noted in the Power Point presentation, Rev O-3 Enthalpies of combustion were calculated for the MSW components (carbon, hydrogen, etc) and verified against EPA heat content data. Engineered fuel composition was calculated as a mass fraction of both MSW and Shredded rubber tires. The Dulong equation and the thermodynamic heat content, (Btu/lb) were averaged to predict the High Heating Value (HHV) of the Fuel. This value appears in the fuel summary on Page One of the Model 'Unit Credit and Loss Summary'.
|Basis||EPA 2005||Tires||2017 Blend|
|Total - lbs||1.001||1.000||1.000||111,912.17||0.1157|
|36.55||cost per ton|
Industrial fluidized bed boilers can accomodate higher fuel moisture contents than utility boilers and are well suited to burning solid municipal wastes including sewage sludge.
Be sure and ask the EPA and its climate modelers for the model validation data that justifies their global warming predictions before trusting in their conclusions.