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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.
TABLE 2.13 Representative Proximate Analysis, Ultimate Analysis, and Heating Value of Solid Fuels (Dry, Ash-free) Bituminous Refuse-Derived Fuel Type Proximate analysis, wt % Wood Peat Lignite Coal Fuel Volatile matter Fixed carbon 65 35 85 15 45 Ultimate analysis, wt % Hydrogen 6 78 52 Sulfur Nitrogen Oxygen 0.1 0.1 0.4 0.6 38 0.7 25 13 40 HHV (Btu/lb (MJ/kg) 9500 22.1 10,700 24.9 14,000 32.5 9700 22.5 8700
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