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Alabama A&M UNIVERSITY ME 310 Thermodynamics Spring 2019 HW #8 Due date: 4/12/19 Problem #1 Steam...
S Q. Find the entropy and/or temperature of steam at the following states Region k/kg K) 5 MPa 1 ...
s Q. Find the entropy and/or temperature of steam at the following states Region k/kg K) 5 MPa 1 MPa 18 MPa 400°C 40 kPa 40 kPa 120°C 50°C Quality, x-09, Mixed 71794 (<7.6700) Q. Determine the entropy change of water contained in a closed system as it changes phase rom saturated liquid to saturated vapor when the pressure is 0.1MPa and constant Why is the entropy change positive for this process? 2. Steam at 1 MPa, 6000C expands in...
Problem 4 – Entropy transfer in a control volume (18 pts) An adiabatic reversible steam turbine...
Problem 4 – Entropy transfer in a control volume (18 pts) An
adiabatic reversible steam turbine steadily processes 2 kg/s of
steam at 5 MPa and 450°C, which is exhausted at 100 kPa and 100°C.
The turbine exhibits an isentropic efficiency of 0.85. a) Draw a
schematic representation of the system with all the energy
interactions involved. (2pts) b) Determine the h (kJ/kg) and s
(kJ/kg-K) at the inlet. (2 pts) c) Determine the actual h (kJ/kg)
and s (kJ/kg-K)...
ENGR-213 QUIZ 1 THERMODYNAMICS Problem 5.(20%) 10 s of superheated steam at 1600 kPa and 400°C...
ENGR-213 QUIZ 1 THERMODYNAMICS Problem 5.(20%) 10 s of superheated steam at 1600 kPa and 400°C is expanded through a turbine, producing a saturated vapor at 500 kPa. (a) If the turbine operates adiabatically, how much shaft work is produced, in kW? Uce Sceun Tala!! 10.cp(70,37 75W 7%, n SE A (b) In a practical scenario, the turbine is producing only 3000 kW of power. What is the heat interaction for the turbine, in kW? T PAGE 5
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,...
Question 4 125 pointsl An industrial facility needs power as well as heat for process application....
Question 4 125 pointsl An industrial facility needs power as well as heat for process application. An innovative mechanical engineer suggested using a steam turbine to provide the power and extract part of the steam somewhere in the middle of the turbine to provide the process heat. Consider an insulated steam turbine which receives 30 kg/s of seam at 3 MPa, 350°C (state 1). At the point in the turbine where the pressure is 0.5 MPa and the temperature is...
Problem 1 (40 pts): A power plant runs on a steam cycle that closely approximates a...
Problem 1 (40 pts): A power plant runs on a steam cycle that closely approximates a Rankine cycle with one exception: the turbine is adiabatic but not isentropic, and has an isentropic efficiency of 85%. The cycle operates between 20 kPa and 20 MPa and steam achieves a maximum temperature of 600 °C. The cycle receives heat from a combustion chamber at 1500 K and rejects heat to the surrounding. a) Calculate the net work output and thermal efficiency of...
Thermodynamics A steam power plant operates with high pressure oft 4 MPa and hasleel receiving heat from a 700°C reservoir. The ambient air at 20°C provides cooling to maintain the water/vapor m...
Thermodynamics
A steam power plant operates with high pressure oft 4 MPa and hasleel receiving heat from a 700°C reservoir. The ambient air at 20°C provides cooling to maintain the water/vapor mixture in the condenser at 60°C. All components are ideal i.e., reversible) except the turbine which has an efficiency 92% of a reversible, isentropic process. Other than the irreversibility of the turbine, the power plant can be considered as a Rankine cycle. Determine the following quantities in the suggested...
(1 - y) 3 Steam generator (1-1) Condenser out Open feedwater heater Pump 2 Pump 1...
(1 - y) 3 Steam generator (1-1) Condenser out Open feedwater heater Pump 2 Pump 1 pl A power plant operates a regenerative vapor power cycle with one open feed water heater. Stem enters the first turbine stage at 12 Mpa, 520 C, and expands to 1 Mpa where some steam is extracted and diverted to the open feedwater heater operating at 1 Mpa,. The remaining steam is expanded in the turbine second state to a pressure of 6 kPa....
Mutah University Faculty of Eng mies I Prof. M. Abu-Zaid Exam. 2 Date: 20-12-2018 Problem ()...
Mutah University Faculty of Eng mies I Prof. M. Abu-Zaid Exam. 2 Date: 20-12-2018 Problem () Steam enters a turbine with a mass flow rate o turbine develops a power of 1000 KW. At the inlet the pr MPa, the temperature is 400 °C, and the veloeity is exit, the pressure is 10 KPa, the quality is 0.9, and the velocity is (8 marks) pressure is 6 At the 10 m/s. m/s. Determine the rate of heat transfer to the...
s Q. Find the entropy and/or temperature of steam at the following states Region k/kg K) 5 MPa 1 MPa 18 MPa 400°C 40 kPa 40 kPa 120°C 50°C Quality, x-09, Mixed 71794 (<7.6700) Q. Determine the entropy change of water contained in a closed system as it changes phase rom saturated liquid to saturated vapor when the pressure is 0.1MPa and constant Why is the entropy change positive for this process? 2. Steam at 1 MPa, 6000C expands in...
Problem 4 – Entropy transfer in a control volume (18 pts) An
adiabatic reversible steam turbine steadily processes 2 kg/s of
steam at 5 MPa and 450°C, which is exhausted at 100 kPa and 100°C.
The turbine exhibits an isentropic efficiency of 0.85. a) Draw a
schematic representation of the system with all the energy
interactions involved. (2pts) b) Determine the h (kJ/kg) and s
(kJ/kg-K) at the inlet. (2 pts) c) Determine the actual h (kJ/kg)
and s (kJ/kg-K)...
ENGR-213 QUIZ 1 THERMODYNAMICS Problem 5.(20%) 10 s of superheated steam at 1600 kPa and 400°C is expanded through a turbine, producing a saturated vapor at 500 kPa. (a) If the turbine operates adiabatically, how much shaft work is produced, in kW? Uce Sceun Tala!! 10.cp(70,37 75W 7%, n SE A (b) In a practical scenario, the turbine is producing only 3000 kW of power. What is the heat interaction for the turbine, in kW? T PAGE 5
Question 4 125 pointsl An industrial facility needs power as well as heat for process application. An innovative mechanical engineer suggested using a steam turbine to provide the power and extract part of the steam somewhere in the middle of the turbine to provide the process heat. Consider an insulated steam turbine which receives 30 kg/s of seam at 3 MPa, 350°C (state 1). At the point in the turbine where the pressure is 0.5 MPa and the temperature is...
Problem 1 (40 pts): A power plant runs on a steam cycle that closely approximates a Rankine cycle with one exception: the turbine is adiabatic but not isentropic, and has an isentropic efficiency of 85%. The cycle operates between 20 kPa and 20 MPa and steam achieves a maximum temperature of 600 °C. The cycle receives heat from a combustion chamber at 1500 K and rejects heat to the surrounding. a) Calculate the net work output and thermal efficiency of...
Thermodynamics
A steam power plant operates with high pressure oft 4 MPa and hasleel receiving heat from a 700°C reservoir. The ambient air at 20°C provides cooling to maintain the water/vapor mixture in the condenser at 60°C. All components are ideal i.e., reversible) except the turbine which has an efficiency 92% of a reversible, isentropic process. Other than the irreversibility of the turbine, the power plant can be considered as a Rankine cycle. Determine the following quantities in the suggested...
(1 - y) 3 Steam generator (1-1) Condenser out Open feedwater heater Pump 2 Pump 1 pl A power plant operates a regenerative vapor power cycle with one open feed water heater. Stem enters the first turbine stage at 12 Mpa, 520 C, and expands to 1 Mpa where some steam is extracted and diverted to the open feedwater heater operating at 1 Mpa,. The remaining steam is expanded in the turbine second state to a pressure of 6 kPa....
Mutah University Faculty of Eng mies I Prof. M. Abu-Zaid Exam. 2 Date: 20-12-2018 Problem () Steam enters a turbine with a mass flow rate o turbine develops a power of 1000 KW. At the inlet the pr MPa, the temperature is 400 °C, and the veloeity is exit, the pressure is 10 KPa, the quality is 0.9, and the velocity is (8 marks) pressure is 6 At the 10 m/s. m/s. Determine the rate of heat transfer to the...
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