1.In practice, steam and gas turbines are heavily insulated. What is the effect of insulating a...
1.In practice, steam and gas turbines are heavily insulated. What is the effect of insulating a turbine on the turbine power output when the steam mass flow rate, inlet and outlet conditions are fixed? Your qualitative explanation must refer to the steady flow energy equation.
2.For a specified turbine power output with fixed inlet and outlet conditions, explain what happens to the steam mass flow rate when a turbine is insulated.
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1.In practice, steam and gas turbines are heavily insulated.
What is the effect of insulating a...
Problem 2 (30 pts) team enters a well-insulated turbine operating at steady state with a mass flo...
Problem 2 (30 pts) team enters a well-insulated turbine operating at steady state with a mass flow rate inlet conditions of the steam are 80 bar, 480°C, and 75 m/s, and the exit conditions are quality, and 40 m/s. The elevation of the inlet is 5 m lower than at the exit. (a) (20 points) the power developed by the turbine, in kW (b) (10 points) the turbine inlet area in em2. Here, I m 100 cm of 5760 kghr....
Problem 1: (10 pts) Steam enters an insulated turbine operating at steady state at a pressure...
Problem 1: (10 pts) Steam enters an insulated turbine operating at steady state at a pressure of 2 MPa and a temperature of 400°C. A liquid-vapor water mixture exits the turbine with a quality of 0.9 and a pressure of 15 kPa. The power output of the turbine is 5 MW. (1) Identify the keywords and state their meaning (2 pts) (2) Determine the mass flow rate of steam required (8 pts)
Question A.1 A schematic of a gas turbine combined cycle generating plant is shown in Figure...
Question A.1 A schematic of a gas turbine combined cycle generating plant is shown in Figure A1.1 on the next page. Exhaust gas from the gas turbine generator pass througha heat recovery steam generator (HRSG) which generates steam to drive a steam turbine generator. The following data is provided for the plant: Gas turbine 18.9:1 Pressure ratio Compressor air inlet temperature Turbine inlet temperature 15°C t 273 288 1350°C +273- 1623 588 kg/s T, T3 Exhaust gas mass flow Isentropic...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton cycle with the following specifications Inlet Condition: Dry air at 537 R and 14.7 psia Pressure Ratio: 24.2 Actual Exhaust Temperature: 950 F Compressor and Turbine Efficiency: 85% Actual Power Output 34 MW Using given/assumed values, determine: a) firing temperature, b) cycle efficiency, c) air mass flow rate. Problem 2- HRSG. Assume the HRSG is used to produce saturated steam at 600 psia using...
Consider an ideal Rankine cycle with reheat based on water as the working fluid. The steam...
Consider an ideal Rankine cycle with reheat based on water as the working fluid. The steam at the high-pressure turbine inlet is at 10 MPa and 700 K and it is saturated steam at the outlet The steam is reheated to 675 K before it enters the low pressure turbine. The pressure is reduced to where the steam is let down to 150 kPa The mass flow rate is 60 kg/s, 1. Draw the T-s diagram; [5 2. State all...
A) find the mass flow rate of steam and B) find the power output in KW...
A) find the mass flow rate of
steam and B) find the power output in KW of the turbine using Ein =
Eout since it is in steady state
In a power plant, steam enters a turbine steadily at 10 MPa and 600°C with a velocity 65 m/s and leaves at 125 kPa with a 96 percent quality. A heat loss of 22 kJ/kg occurs during the process. The inlet area of the turbine is 140 cm². Determine (a) the...
power plant /Steam Turbines/Impules Turbine i need solution in 30 minutes Q2) A single stage simple...
power plant /Steam Turbines/Impules Turbine
i need solution in 30 minutes
Q2) A single stage simple impulse turbine generator set is to operate under the following conditions. Steam at inlet :8 bar, dry saturated Exhaust :0.2 bar Nozzle efficiency :0.9 Nozzle angle :15° Internal efficiency :0.75 Mechanical efficiency :0.92 Generator efficiency :0.9 Find (a) the mean blade speed for maximum blading efficiency, (b) the steam flow rate for developing 200 kW.
The figure shows a schematic of a power plant that has two steam turbines. The water...
The figure shows a schematic of a power plant that has two steam turbines. The water (the working fluid for the plant) leaves the high pressure turbine (HPT) as saturated vapour at 1000 [kPa]. Part of this flow is diverted to an insulated heat exchanger, which we hot airstream to create superheated steam that enters the low pressure turbine (LPT). The air mas flow rate is 19.5 k/s and the air temperature drops from 1100 to 6001 as it goes...
Question B3 (25 Marks Write down a mathematical expression for the First Law of Thermodynamics as applied to steady state, steady flow process, explaining clearly the notation and sign conventions us...
Question B3 (25 Marks Write down a mathematical expression for the First Law of Thermodynamics as applied to steady state, steady flow process, explaining clearly the notation and sign conventions used. (5 marks) Consider steady state, steady flow of steam through a turbine used for electricity generation. You may assume that the process is adiabatic. The steam inlet and exit conditions are; Inlet Exit 15.0 0.01 Pressure (MPa) TemperatureC Velocity (m/s 500 40 80 Fraction 0.92 P, 15.0 MPa T,-500C...
5.34 Cooling method for gas turbines. Refer to the Journal of Engineering for Gas Turbines and Po...
5.34 Cooling method for gas turbines. Refer to the Journal of Engineering for Gas Turbines and Power (January 2005) study of a high-pressure inlet fogging method for a gas turbine engine, Exercise 5.19 (p. 281). Recall that you analyzed a model for heat rate (kilojoules per kilowatt per hour) of a gas turbine as a function of cycle speed (revolutions per minute) and cycle pressure ratio. Now consider a qualitative predictor, engine type, at three levels (traditional, advanced, and aeroderivative)....
Problem 2 (30 pts) team enters a well-insulated turbine operating at steady state with a mass flow rate inlet conditions of the steam are 80 bar, 480°C, and 75 m/s, and the exit conditions are quality, and 40 m/s. The elevation of the inlet is 5 m lower than at the exit. (a) (20 points) the power developed by the turbine, in kW (b) (10 points) the turbine inlet area in em2. Here, I m 100 cm of 5760 kghr....
Problem 1: (10 pts) Steam enters an insulated turbine operating at steady state at a pressure of 2 MPa and a temperature of 400°C. A liquid-vapor water mixture exits the turbine with a quality of 0.9 and a pressure of 15 kPa. The power output of the turbine is 5 MW. (1) Identify the keywords and state their meaning (2 pts) (2) Determine the mass flow rate of steam required (8 pts)
Question A.1 A schematic of a gas turbine combined cycle generating plant is shown in Figure A1.1 on the next page. Exhaust gas from the gas turbine generator pass througha heat recovery steam generator (HRSG) which generates steam to drive a steam turbine generator. The following data is provided for the plant: Gas turbine 18.9:1 Pressure ratio Compressor air inlet temperature Turbine inlet temperature 15°C t 273 288 1350°C +273- 1623 588 kg/s T, T3 Exhaust gas mass flow Isentropic...
Problem 1 - Gas Turbine Engine. Assume the gas turbine engine operates on basic non-ideal Brayton cycle with the following specifications Inlet Condition: Dry air at 537 R and 14.7 psia Pressure Ratio: 24.2 Actual Exhaust Temperature: 950 F Compressor and Turbine Efficiency: 85% Actual Power Output 34 MW Using given/assumed values, determine: a) firing temperature, b) cycle efficiency, c) air mass flow rate. Problem 2- HRSG. Assume the HRSG is used to produce saturated steam at 600 psia using...
Consider an ideal Rankine cycle with reheat based on water as the working fluid. The steam at the high-pressure turbine inlet is at 10 MPa and 700 K and it is saturated steam at the outlet The steam is reheated to 675 K before it enters the low pressure turbine. The pressure is reduced to where the steam is let down to 150 kPa The mass flow rate is 60 kg/s, 1. Draw the T-s diagram; [5 2. State all...
A) find the mass flow rate of
steam and B) find the power output in KW of the turbine using Ein =
Eout since it is in steady state
In a power plant, steam enters a turbine steadily at 10 MPa and 600°C with a velocity 65 m/s and leaves at 125 kPa with a 96 percent quality. A heat loss of 22 kJ/kg occurs during the process. The inlet area of the turbine is 140 cm². Determine (a) the...
power plant /Steam Turbines/Impules Turbine
i need solution in 30 minutes
Q2) A single stage simple impulse turbine generator set is to operate under the following conditions. Steam at inlet :8 bar, dry saturated Exhaust :0.2 bar Nozzle efficiency :0.9 Nozzle angle :15° Internal efficiency :0.75 Mechanical efficiency :0.92 Generator efficiency :0.9 Find (a) the mean blade speed for maximum blading efficiency, (b) the steam flow rate for developing 200 kW.
The figure shows a schematic of a power plant that has two steam turbines. The water (the working fluid for the plant) leaves the high pressure turbine (HPT) as saturated vapour at 1000 [kPa]. Part of this flow is diverted to an insulated heat exchanger, which we hot airstream to create superheated steam that enters the low pressure turbine (LPT). The air mas flow rate is 19.5 k/s and the air temperature drops from 1100 to 6001 as it goes...
Question B3 (25 Marks Write down a mathematical expression for the First Law of Thermodynamics as applied to steady state, steady flow process, explaining clearly the notation and sign conventions used. (5 marks) Consider steady state, steady flow of steam through a turbine used for electricity generation. You may assume that the process is adiabatic. The steam inlet and exit conditions are; Inlet Exit 15.0 0.01 Pressure (MPa) TemperatureC Velocity (m/s 500 40 80 Fraction 0.92 P, 15.0 MPa T,-500C...
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