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2. The mass flow rate into a steam turbine is 1.5 ke/s, and the heat transfer...
thermo question 2. (20 points) Steam enters a turbine operating at steady state at 2 MPa,...
thermo question
2. (20 points) Steam enters a turbine operating at steady state at 2 MPa, 360°C with a velocity of 100 m/s. Saturated vapor exits at 0.1 MPa and a velocity of 50 m/s. The elevation of the inlet is 3 m higher than at the exit. The mass flow rate of the steam is 15 kg's, and the power developed is 7 MW. Let g -9.81 m/s Determine (a) the area at the inlet, in m, and (b)...
A steam turbine receives 8 kg/s of steam at 9 MPa, 650 C and 60 m/s...
A steam turbine receives 8 kg/s of steam at 9 MPa, 650 C and 60 m/s (pressure, temperature and velocity). It discharges liquid-vapor mixture with a quality of 0.94 at a pressure of 325 kPa and a velocity of 15 m/s. In addition, there is heat transfer from the turbine to the surroundings for 560 kW. Find the power produced by the turbine and express it in kW
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350...
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350 °C with a velocity of 15 m/s. The exit is at 100 kPa, 150 °C, and very low velocity. Determine the power produced. 2. A small expander (a turbine with a heat transfer) has 0.05 kg helium entering at 1000 kPa, 550 K, and it leaves at 250 kPa, 300 K. The power output on the shaft is measured at 55 kW. Determine the...
Steam flows through a turbine at a rate of 19.3 kg/s. It enters the turbine at...
Steam flows through a turbine at a rate of 19.3 kg/s. It enters the turbine at 500°C and 5 MPa and leaves at 250°C and 500 kPa If the turbine is operated adiabatically, what is the power produced by the turbine? MW It is discovered that this turbine only produces 6.581 MW of power, what is rate of energy loss due to heat transfer? kW Given the actual rate of work supplied by the turbine, what is the efficiency of...
2(a) Steam enters a turbine at 6 MPa and 500°C at a rate of 1.5 kg/s...
2(a) Steam enters a turbine at 6 MPa and 500°C at a rate of 1.5 kg/s and leaves at 20 kPa. Assume the turbine is adiabatic and neglect kinetic energy changes. The power output of the turbine is 2.5 MW. What is the phase of the steam entering the turbine? appendix 1-2.pdf
Steam enters a turbine with mass flow rate of 62.0 kg/s. The inlet pressure is 80.0...
Steam enters a turbine with mass flow rate of 62.0 kg/s. The inlet pressure is 80.0 bar and temperature 350°C. The outlet contains saturated steam at 5.0 bar. At steaady state calculate the power generated by the turbine in kW.(you need to report positive number). Assume negligible heat loss.
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s
Steam with the mass flow rate of 0.75 kg/s enters an adiabatic turbine steadily at 19 MPa, 600°C and 150 m/s, and leaves at 150 kPa and 350 m/s. The isentropic efficiency of the turbine is 85%. Neglect potential energy. (I) Determine the exit temperature of the steam, and its quality (if saturated mixture) (ii) Calculate the actual power output of the turbine, in kW (iii) Illustrate a T-s diagram with respect to saturation lines for the isentropic process by clearly indicating all pressure, temperature,...
3. Question 3: Entropy change in a diabatic steam turbine (20) Steam enters a reversible, adiabatic...
3. Question 3: Entropy change in a diabatic steam turbine (20) Steam enters a reversible, adiabatic turbine at 4 MPa and 520°C with a velocity of 60 m/s. The steam exhausts from the turbine at a pressure of 80 kPa with a velocity of 140 m/s. Determine the work output of the turbine per unit mass of steam flowing through the turbine. Steam Pi = 4 MPa Ti = 520°C Vi = 60 m/s Reversible, adiabatic turbine w System boundary...
5. Steam at 140 bar and 600 °C enters a turbine at a mass flow rate...
5. Steam at 140 bar and 600 °C enters a turbine at a mass flow rate of 0.5 kg/s. This steam exits the turbine as a saturated vapor at 300 °C. During operation, the turbine loses 200 kW of heat to the surroundings. Assume that the turbine operates at steady state and that the change of kinetic energy and gravitational energy can be ignored. (a) Sketch the system and boundary (4 points); (b) Label all mass flows and energy transfer...
Canvas Steam enters a turbine operating at steady state 2.2 MP-WC with a very 0.1 MPa...
Canvas Steam enters a turbine operating at steady state 2.2 MP-WC with a very 0.1 MPa and a velocity of 50 m/s. The elevation of the inletisierte e 15 kg/s, and the power developed is 7 mW.648 = 9.84m2. Deastice (a) the area at the inlet, in ? (3 points) (b) the enthalpy at the inlet, in kJ/kg (1.5 points) (c) the enthalpy at the outlet, in kJ/kg (1.5 points) (d) the rate of heat transfer between the turbine and...
thermo question
2. (20 points) Steam enters a turbine operating at steady state at 2 MPa, 360°C with a velocity of 100 m/s. Saturated vapor exits at 0.1 MPa and a velocity of 50 m/s. The elevation of the inlet is 3 m higher than at the exit. The mass flow rate of the steam is 15 kg's, and the power developed is 7 MW. Let g -9.81 m/s Determine (a) the area at the inlet, in m, and (b)...
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350 °C with a velocity of 15 m/s. The exit is at 100 kPa, 150 °C, and very low velocity. Determine the power produced. 2. A small expander (a turbine with a heat transfer) has 0.05 kg helium entering at 1000 kPa, 550 K, and it leaves at 250 kPa, 300 K. The power output on the shaft is measured at 55 kW. Determine the...
Steam flows through a turbine at a rate of 19.3 kg/s. It enters the turbine at 500°C and 5 MPa and leaves at 250°C and 500 kPa If the turbine is operated adiabatically, what is the power produced by the turbine? MW It is discovered that this turbine only produces 6.581 MW of power, what is rate of energy loss due to heat transfer? kW Given the actual rate of work supplied by the turbine, what is the efficiency of...
2(a) Steam enters a turbine at 6 MPa and 500°C at a rate of 1.5 kg/s and leaves at 20 kPa. Assume the turbine is adiabatic and neglect kinetic energy changes. The power output of the turbine is 2.5 MW. What is the phase of the steam entering the turbine? appendix 1-2.pdf
3. Question 3: Entropy change in a diabatic steam turbine (20) Steam enters a reversible, adiabatic turbine at 4 MPa and 520°C with a velocity of 60 m/s. The steam exhausts from the turbine at a pressure of 80 kPa with a velocity of 140 m/s. Determine the work output of the turbine per unit mass of steam flowing through the turbine. Steam Pi = 4 MPa Ti = 520°C Vi = 60 m/s Reversible, adiabatic turbine w System boundary...
5. Steam at 140 bar and 600 °C enters a turbine at a mass flow rate of 0.5 kg/s. This steam exits the turbine as a saturated vapor at 300 °C. During operation, the turbine loses 200 kW of heat to the surroundings. Assume that the turbine operates at steady state and that the change of kinetic energy and gravitational energy can be ignored. (a) Sketch the system and boundary (4 points); (b) Label all mass flows and energy transfer...
Canvas Steam enters a turbine operating at steady state 2.2 MP-WC with a very 0.1 MPa and a velocity of 50 m/s. The elevation of the inletisierte e 15 kg/s, and the power developed is 7 mW.648 = 9.84m2. Deastice (a) the area at the inlet, in ? (3 points) (b) the enthalpy at the inlet, in kJ/kg (1.5 points) (c) the enthalpy at the outlet, in kJ/kg (1.5 points) (d) the rate of heat transfer between the turbine and...
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