A coal-fired power plant proposes to burn 3% sulfur coal with a heating value of 11,000 Btu/lb. I...
A coal-fired power plant proposes to burn 3% sulfur coal with a heating value of 11,000 Btu/lb. If the plant is to meet the standard of performance given by EPA New Source Performance Standards (NSPS), what percent cleanup is required for SO2? What percent sulfur could the coal contain if the standards are to be met with no clean-up devices?
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A coal-fired power plant proposes to burn 3% sulfur coal with a heating value of 11,000 Btu/lb. I...
An industry is proposing to construct a new coal-fired power plant that produces 2300 MW electricity...
An industry is proposing to construct a new coal-fired power plant that produces 2300 MW electricity with efficiency of 39%. Coal has a heating value of 10,750 Btu/lb, and contains a sulfur content of 2.4%. It is expected that 95% of sulfur will be converted to SO2. The New Source Performance Standards (NSPS) limits the SO2 emission rate from any coal-fired power plants to 1.2 lb/ 106 Btu heat input. a) Determine coal consumption in lb/ hr b) Determine SO2...
A coal fired power plant generates SO2. If 1593 tons of SO2 per year is emitted...
A coal fired power plant generates SO2. If 1593 tons of SO2 per year is emitted from a 150 megawatt plant, calculate the sulfur content of the coal to be used if it has a heating value of 30000 kJ/kg. Is there any better coal?
You are assigned to help an aged 30% efficient 800-MW coal-fired power plant in Indonesia. You...
You are assigned to help an aged 30% efficient 800-MW coal-fired power plant in Indonesia. You learnt that a warning has been issued to this power plant demanding that the rate of SO2 emission from this power plan has to be reduced to no more than 0.6 kg s. You find out that every million BTU of heat supplying into this aged plant emits 0.8 lb of SO2. Since this power plant is aged, its power generation can be easily...
An electric power generation burns bituminous coal in a dry furnace at a rate of 200...
An electric power generation burns bituminous coal in a dry furnace at a rate of 200 tons/h. The plnat operates continuoulsy 8760 h/yr. The coal has higher heating value of 12,500 Btu/lbm, 3% sulfur and 8% ash, and 0.001% mercury (by weight). An electrostatic precipitator (ESP) removes sufficient flyash to satisfy the new source performance standards. (a) If all the mercury condenses on the minuscule flyash particles that are nor captured by ESP, estimate the mercury emissions (tons/yr). (b) If...
A typical coal-fired electric generating plant will burn about 3 metric tons of coal per hour....
A typical coal-fired electric generating plant will burn about 3 metric tons of coal per hour. Most of the coal burned in the United States contains 1 to 4 % by weight sulfur in the form of pyrite, which is oxidized as the coal burns: 4FeS2(s) + 11 O2(g) 2 Fe2O3(s) + 8 SO2(g) Once in the atmosphere, the SO2 is oxidized to SO3, which then reacts with water in the atmosphere to form sulfuric acid: SO3(g) + H2O(l) H2SO4(aq)...
A typical coal-fired electric generating plant will burn about 3 metric tons of coal per hour....
A typical coal-fired electric generating plant will burn about 3 metric tons of coal per hour. Most of the coal burned in the United States contains 1 to 4 % by weight sulfur in the form of pyrite, which is oxidized as the coal burns: 4FeS2(s) + 11 O2 (g)--------> (Fe2O3(s) + 8 SO2(g) Once in the atmosphere, the SO2 is oxidized to SO3, which then reacts with water in the atmosphere to form sulfuric acid: SO3(g) + H2O(l) ----------> H2SO4(aq)...
32 Suppose a utility generates electricity with a 36 percent efficient coal-fired power plant emi...
32 Suppose a utility generates electricity with a 36 percent efficient coal-fired power plant emitting the legal limit of 0.6 lb of SO2 per million Btus of heat into the plant. Suppose the utility encourages its customers to replace their 75-W incandescents with 18-W com pact fluorescent lamps (CFLs) that produce the same amount of light. Over the 10,000-hr (a) How many kilowatt-hours of electricity would be saved? (b) How many 2,000-lb tons of SO2 would not be emitted? (c)...
Imagine that you are a regulator for a utility that owns a small coal-fired generator. This...
Imagine that you are a regulator for a utility that owns a small coal-fired generator. This generator emits sulfur dioxide (SO2) and oxides of nitrogen (NOx), both of which are regulated under the clean air act using a "cap and trade" system - in order to be in compliance with the clean air act, the utility could either reduce emissions or SO2 and NOx or purchase a "credit" for each unit of SO2 or NOx emitted. The credit effectively pays...
ethanol is 190 g E a 3) A coal-fired power plant is designed to produce 12...
ethanol is 190 g E a 3) A coal-fired power plant is designed to produce 12 MW of electricity. (This is a small unit that might be used to power a pulp-and-paper mill or other relatively energy intensive factory.) The coal is used to heat steam to a temperature of 560 C. After running through the turbines; the steam has been condensed and the liquid water cooled to 38 °C. (a) Calculate the minimum amount of heat that must be...
Exotic materials in a large power plant A new state-of-the-art coal-fired power plant was to be...
Exotic materials in a large power plant A new state-of-the-art coal-fired power plant was to be built at a newly developed site. There, it would be connected to plants that would also provide biological waste as fuel, in return for high-pressure steam and energy.The power plant reaches high efficiencies, filters its exhaust gas and particles, and is able to compress and back CO2 into subterranean reservoirs of old gas fields. The project showcases the latest technology concerning coal-fired plants, including...
You are assigned to help an aged 30% efficient 800-MW coal-fired power plant in Indonesia. You learnt that a warning has been issued to this power plant demanding that the rate of SO2 emission from this power plan has to be reduced to no more than 0.6 kg s. You find out that every million BTU of heat supplying into this aged plant emits 0.8 lb of SO2. Since this power plant is aged, its power generation can be easily...
32 Suppose a utility generates electricity with a 36 percent efficient coal-fired power plant emitting the legal limit of 0.6 lb of SO2 per million Btus of heat into the plant. Suppose the utility encourages its customers to replace their 75-W incandescents with 18-W com pact fluorescent lamps (CFLs) that produce the same amount of light. Over the 10,000-hr (a) How many kilowatt-hours of electricity would be saved? (b) How many 2,000-lb tons of SO2 would not be emitted? (c)...
ethanol is 190 g E a 3) A coal-fired power plant is designed to produce 12 MW of electricity. (This is a small unit that might be used to power a pulp-and-paper mill or other relatively energy intensive factory.) The coal is used to heat steam to a temperature of 560 C. After running through the turbines; the steam has been condensed and the liquid water cooled to 38 °C. (a) Calculate the minimum amount of heat that must be...
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