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You are assigned to help an aged 30% efficient 800-MW coal-fired power plant in Indonesia. You...
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...
7.4 A coal-fired 930-MW power plant is operating under the following conditions: Coal carbon content C...
7.4 A coal-fired 930-MW power plant is operating under the following conditions: Coal carbon content C = 80%, coal ash content A = 6%, and heating value LHV = 30 MJ/kg Cooling water temperature difference Atew = 10.5 K Plant electrical efficiency ne is 0.43 and capacity factor CF is 0.82. Boiler efficiency n = 0.92 ESP efficiency nesp = 99% Calculate (a) the plant fuel rate, (b) the hourly and annual CO, emission rates, (c) the specific CO2 emissions...
Consider a coal-fired steam power plant that produces 175 MW of electric power. The power plant o...
Consider a coal-fired steam power plant that produces 175 MW of electric power. The power plant operates on a simple ideal Rankine cycle with turbine inlet conditions of 8 MPa and 560°C and a condenser pressure of 8 kPa. The coal has a heating value (energy released when the coal is burned) of 29,300 kJ/kg and a CO2 emission value of 0.093 kg CO2/MJ. Assuming that 85% of this energy is transferred to heat in the boiler and that the...
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...
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...
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)...
4. A coal-fired power plant has thermal efficiency, η = 30%. It produces 100 MW of...
4. A coal-fired power plant has thermal efficiency, η = 30%. It produces 100 MW of power. does the coal combustor transfer energy (heat) to the plant? Answer: 100 MW At what 0 < 400 MH At what rate is heat rejected to the environment? Answer: 100 MW < Qく400 Mw. a. rate b.
4-3. A 800 MW coal-fired power plant has the plant net heat rate curve defined R...
4-3. A 800 MW coal-fired power plant has the plant net heat rate curve defined R by PNHR = 0.5330 X 10-'L4 - 0.1396 X 10-3L + 0.1439L? -0.7089 X 10²L + 0.2427 x 105 where PNHR is in Btu/kWh and L is in megawatts. Derive the input o give 117 -I. Now take derivative of I to get IRI > I = CPIVHR)CL2 Input - output TRE dI Incremental heat - - du Problems povation 135 nate equa output...
4. Consumers Energy Inc (CSI) operates a coal fired power plant in Michigan, which has to...
4. Consumers Energy Inc (CSI) operates a coal fired power plant in Michigan, which has to come in compliance with nitrogen oxide (NOx) standards by reducing its NOx emissions to 50 tons per year from its current level of 150 tons/year. It is considering the following options to come in compliance. A) Install Selective Catalytic Reactor (SCR) on its boiler. SCR reduces NOx emissions by absorbing NOx in exhaust flue gases. SCR requires a capital investment of $600,000 in year...
Consumers Energy Inc (CSI) operates a coal fired power plant in Michigan, which has to come...
Consumers Energy Inc (CSI) operates a coal fired power plant in Michigan, which has to come in compliance with nitrogen oxide (NOx) standards by reducing its NOx emissions to 50 tons per year from its current level of 150 tons/year. It is considering the following options to come in compliance. A) Install Selective Catalytic Reactor (SCR) on its boiler. SCR reduces NOx emissions by absorbing NOx in exhaust flue gases. SCR requires a capital investment of $600,000 in year zero...
7.4 A coal-fired 930-MW power plant is operating under the following conditions: Coal carbon content C = 80%, coal ash content A = 6%, and heating value LHV = 30 MJ/kg Cooling water temperature difference Atew = 10.5 K Plant electrical efficiency ne is 0.43 and capacity factor CF is 0.82. Boiler efficiency n = 0.92 ESP efficiency nesp = 99% Calculate (a) the plant fuel rate, (b) the hourly and annual CO, emission rates, (c) the specific CO2 emissions...
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)...
4. A coal-fired power plant has thermal efficiency, η = 30%. It produces 100 MW of power. does the coal combustor transfer energy (heat) to the plant? Answer: 100 MW At what 0 < 400 MH At what rate is heat rejected to the environment? Answer: 100 MW < Qく400 Mw. a. rate b.
4-3. A 800 MW coal-fired power plant has the plant net heat rate curve defined R by PNHR = 0.5330 X 10-'L4 - 0.1396 X 10-3L + 0.1439L? -0.7089 X 10²L + 0.2427 x 105 where PNHR is in Btu/kWh and L is in megawatts. Derive the input o give 117 -I. Now take derivative of I to get IRI > I = CPIVHR)CL2 Input - output TRE dI Incremental heat - - du Problems povation 135 nate equa output...
4. Consumers Energy Inc (CSI) operates a coal fired power plant in Michigan, which has to come in compliance with nitrogen oxide (NOx) standards by reducing its NOx emissions to 50 tons per year from its current level of 150 tons/year. It is considering the following options to come in compliance. A) Install Selective Catalytic Reactor (SCR) on its boiler. SCR reduces NOx emissions by absorbing NOx in exhaust flue gases. SCR requires a capital investment of $600,000 in year...
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