In 2018, the Logan landfill collected 38.9 tons of used tires and 6,435 gallons of used...
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In 2018, the Logan landfill collected 38.9 tons of used tires and 6,435 gallons of used oil. Assume the used oil has a density of 860 kg/m3 a) Using the values in Table 12.4 (B&B Part II, page 225), calculate the combined energy value (kJ) of the tires and oil. b) What is the amount (tons) of Utah bituminous coal (average 11,700 BTU/lb) equivalent to the combined energy content of the tires and oil? table: Table 12.4 lists the net heating value of several fuels, including some waste materials. The U.S. EPA considers any material with a minimum heating value of 5,000 to 8,000 Btu/lb (12,000-18,000 kJ/kg) to be a bona fide fuel. Fuel Carbon Coal Illinois bituminous (8 % ash, 4% 5) Pennsylvania anthracite (8 % ash, 0.5% S) West Virginia bituminous (4.5 % ash, 1% S) Liquids Fuel oil (87.3% carbon) Crude oil Gasoline Gases Landfill gas (50% methane) Sludge digester gas (70% methane) Natural gas Methane Ethane Propane Butane Waste materials (dry weight basis) Unsorted raw municipal refuse (moist) Dry combustibles from municipal refuse Newsprint Digested sewage sludge (40% ash) Wastewater grease and scum (12% ash) Rags (10% moisture, 2.5 % ash) Waste sulfite liquor solids Dry bagasse Vinyl scrap Btu/lb 14,100 Foam, scrap Tires Used oil Polyethylene film Conversion Factors: 1 Btu/lb 11,500 13,500 14,500 18,000 19,000 20,000 11,500 16,000 20,300 21,500 20,300 19,800 20,000 3,000-5,000 8,000 7,800 5,300 16,700 kWh/lb 4.13 3.37 3.96 4.25 5.28 5.57 5.86 3.37 4.69 5.95 6.30 5.95 5.80 5.86 0.88-1.46 2.34 2.29 1.55 4.89 kJ/kg 32,800 26,700 31,400 33,700 41,900 44,200 46,500 26,700 37,200 47,200 50,000 47,200 46,100 46,500 7,000-11,600 18,600 18,100 12,300 38,800 17,800 18,400 18,600 26,500 7,650 2.24 7,900 2.32 8,000 2.34 11,400 3.34 12,290 3.60 15,000 4.40 18,000 5.28 19,160 5.62 2.931 x 10 kWh/lb 6.463 x 10 kWh/kg = 2.326 kJ/kg Table 12.4 Lower heating value of selected fuels and waste materials. 28,600 34,900 41,900 44,600 kWh/kg 9.61 7.84 9.20 9.89 12.27 12.95 13.64 7.84 10.91 13.84 14.66 13.84 13.50 13.64 2.05-3.41 5.45 5:32 3.61 11.39 5.22 5.39 5.45 7.77 8.38 10.23 12.27 13.06 In 2018, the Logan landfill collected 38.9 tons of used tires and 6,435 gallons of used oil. Assume the used oil has a density of 860 kg/m3 a) Using the values in Table 12.4 (B&B Part II, page 225), calculate the combined energy value (kJ) of the tires and oil. b) What is the amount (tons) of Utah bituminous coal (average 11,700 BTU/lb) equivalent to the combined energy content of the tires and oil? table: Table 12.4 lists the net heating value of several fuels, including some waste materials. The U.S. EPA considers any material with a minimum heating value of 5,000 to 8,000 Btu/lb (12,000-18,000 kJ/kg) to be a bona fide fuel. Fuel Carbon Coal Illinois bituminous (8 % ash, 4% 5) Pennsylvania anthracite (8 % ash, 0.5% S) West Virginia bituminous (4.5 % ash, 1% S) Liquids Fuel oil (87.3% carbon) Crude oil Gasoline Gases Landfill gas (50% methane) Sludge digester gas (70% methane) Natural gas Methane Ethane Propane Butane Waste materials (dry weight basis) Unsorted raw municipal refuse (moist) Dry combustibles from municipal refuse Newsprint Digested sewage sludge (40% ash) Wastewater grease and scum (12% ash) Rags (10% moisture, 2.5 % ash) Waste sulfite liquor solids Dry bagasse Vinyl scrap Btu/lb 14,100 Foam, scrap Tires Used oil Polyethylene film Conversion Factors: 1 Btu/lb 11,500 13,500 14,500 18,000 19,000 20,000 11,500 16,000 20,300 21,500 20,300 19,800 20,000 3,000-5,000 8,000 7,800 5,300 16,700 kWh/lb 4.13 3.37 3.96 4.25 5.28 5.57 5.86 3.37 4.69 5.95 6.30 5.95 5.80 5.86 0.88-1.46 2.34 2.29 1.55 4.89 kJ/kg 32,800 26,700 31,400 33,700 41,900 44,200 46,500 26,700 37,200 47,200 50,000 47,200 46,100 46,500 7,000-11,600 18,600 18,100 12,300 38,800 17,800 18,400 18,600 26,500 7,650 2.24 7,900 2.32 8,000 2.34 11,400 3.34 12,290 3.60 15,000 4.40 18,000 5.28 19,160 5.62 2.931 x 10 kWh/lb 6.463 x 10 kWh/kg = 2.326 kJ/kg Table 12.4 Lower heating value of selected fuels and waste materials. 28,600 34,900 41,900 44,600 kWh/kg 9.61 7.84 9.20 9.89 12.27 12.95 13.64 7.84 10.91 13.84 14.66 13.84 13.50 13.64 2.05-3.41 5.45 5:32 3.61 11.39 5.22 5.39 5.45 7.77 8.38 10.23 12.27 13.06
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Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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