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Question: 11 a bituminous coal contains 10 ash and 5 moisture...

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11. A bituminous coal contains 10% ash and 5% moisture on an as-received basis, and a refuse-derived fuel contains 13% ash and 20% moisture on an as-received basis. Compare the as-received HHV and LHV of this bitumi- nous coal and refuse-derived fuel using the data of Table 2.13.
Representative Proximate Analysis, Ultimate Analysis, and Heating Value of Solid Fuels (Dry, Ash-free) TABLE 2.13 Bituminous Refuse-Derived Fuel Wood Peat Lignite Coal Fuel Type Proximate analysis, wt % 65 35 40 60 85 15 81 Volatile matter Fixed carbon 19 45 Ultimate analysis, wt % Hydrogen Carbon Sulfur Nitrogen Oxygen HHV (Btu/lb,) (MJ/kg) 52 0.3 0.7 40 50 0.1 0.1 68 78 0.4 0.6 38 25 10,700 24.9 13 8700 20.2 9500 22.1 14,000 32.5 9700 22.5
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