Steam enters an adiabatic turbine steadily at 7 MPa, 500 °C, and 45 m/s
Steam enters an adiabatic turbine steadily at 7 MPa, 500 °C, and 45 m/s, and leaves at 100 kPa and 75 m/s. If the power output of the turbine is 5 MW and the isentropic efficiency is 77 percent, determine:
A. the mass flow rate of steam through the turbine,
B. the temperature at the turbine exit, and
C. the rate of entropy generation during this process.
Homework Answers
Add Answer to:
Steam enters an adiabatic turbine steadily at 7 MPa, 500 °C, and 45 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
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,...
NO INTERPOLATION REQUIRED Air enters an adiabatic turbine at 1000 kPa and 1625 degrees C (state...
NO INTERPOLATION REQUIRED Air enters an adiabatic turbine at 1000 kPa and 1625 degrees C (state 1) with a mass flow rate of 5 kg/s and leaves at 100 kPa the isentropic efficiency of the turbine is 85%. Neglecting the kinetic energy change of the steam, and considering variable specific heats, determine: a. the isentropic power of the turbine Isentropic power in kW b. the temperature at the turbine exit temperature at exit in degrees C c. the actual power...
Steam enters an adiabatic turbine steadily at 3 MPa and 450°C at a rate of 8...
Steam enters an adiabatic turbine steadily at 3 MPa and 450°C at a rate of 8 kg/s and exits at 0.2 MPa and 150*C. If the surrounding air is at 25°C and 100 kPa, determine: a. The specific flow exergy of steam at turbine entrance b. The specific flow exergy of steam at turbine exit c. The rate of flow exergy change in the process.
Steam flows steadily through an adiabatic turbine
Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa, 500°C, and 80 m/s, and the exit conditions are 30 kPa, 92 percent quality, and 50 m/s. The mass flow rate of the steam is 12 kg/s. Determine a. (3) Change in kinetic energy (-23.4 kJ) b. (4) Power output (12.12 MW) c. (3) Turbine inlet area (0.012966 m2)
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
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves...
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
Please show steps. Steam at 0.3 kg/s enters an adiabatic turbine at 2 MPa and 500°C....
Please show steps. Steam at 0.3 kg/s enters an adiabatic turbine at 2 MPa and 500°C. It exits at 100 kPa. If the isentropic efficiency is 95%, how much power is produced, in units of kW? Correct Answer is 514.1 m/s Thank you.
11) An adiabatic compressor is to be powered by a direct-coupled adiabatic turbine that is also...
11) An adiabatic compressor is to be powered by a direct-coupled adiabatic turbine that is also driving a generator. Steam enters the turbine at 10 MPa and 500 °C at a rate of 15 kgs and exits at 20 kPa. The turbine isentropic efficiency is 85% Air enters the compressor at 98 kPa and 230C at a rate of 10 kg/s, and exits the compressor at 1.2 MPa. The compressor efficiency is 75 %. Determine: a) the power requirement of...
2. STEAM enters a reversible, adiabatic turbine at 6.0 MPa and 500 C. It leaves at...
2. STEAM enters a reversible, adiabatic turbine at 6.0 MPa and 500 C. It leaves at 10 kPa. The mass flow rate is 40 kg/s. What is the power output of the turbine in kW? (Hints: W_dot = m_dot (h_2-h _1) and s_1=s_2). a) 1243 kW b) 2663 kW c) 33,570 kW d) 41,000 kW e) 49.725 kW
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands...
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands to 0.5 MPa, after which it is reheated to 450°C. The steam is then expanded through the low-pressure turbine to 7.5 kPa. Liquid water (Vi 0.001 m/kg) leaves the condensor at 30°C, is pumped to 5 MPa, and returned to the steam generator. Each turbine is adiabatic, with an isentropic efficiency of 81.6 % and the pump efficiency is 848 %. If the total...
Steam enters an adiabatic turbine steadily at 3 MPa and 450°C at a rate of 8 kg/s and exits at 0.2 MPa and 150*C. If the surrounding air is at 25°C and 100 kPa, determine: a. The specific flow exergy of steam at turbine entrance b. The specific flow exergy of steam at turbine exit c. The rate of flow exergy change in the process.
Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 4 MPa, 500°C, and 80 m/s, and the exit conditions are 30 kPa, 92 percent quality, and 50 m/s. The mass flow rate of the steam is 12 kg/s. Determine a. (3) Change in kinetic energy (-23.4 kJ) b. (4) Power output (12.12 MW) c. (3) Turbine inlet area (0.012966 m2)
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
5-30 Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm². Determine (a) the mass flow rate through the nozzle, (b) the exit temperature of the air, and (c) the exit area of the nozzle. Answers: (a) 0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm P = 300 kPa T, = 200°C Vi = 30 m/s A = 80 cm AIR...
11) An adiabatic compressor is to be powered by a direct-coupled adiabatic turbine that is also driving a generator. Steam enters the turbine at 10 MPa and 500 °C at a rate of 15 kgs and exits at 20 kPa. The turbine isentropic efficiency is 85% Air enters the compressor at 98 kPa and 230C at a rate of 10 kg/s, and exits the compressor at 1.2 MPa. The compressor efficiency is 75 %. Determine: a) the power requirement of...
2. STEAM enters a reversible, adiabatic turbine at 6.0 MPa and 500 C. It leaves at 10 kPa. The mass flow rate is 40 kg/s. What is the power output of the turbine in kW? (Hints: W_dot = m_dot (h_2-h _1) and s_1=s_2). a) 1243 kW b) 2663 kW c) 33,570 kW d) 41,000 kW e) 49.725 kW
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands to 0.5 MPa, after which it is reheated to 450°C. The steam is then expanded through the low-pressure turbine to 7.5 kPa. Liquid water (Vi 0.001 m/kg) leaves the condensor at 30°C, is pumped to 5 MPa, and returned to the steam generator. Each turbine is adiabatic, with an isentropic efficiency of 81.6 % and the pump efficiency is 848 %. If the total...
Most questions answered within 3 hours.
-
Why is the answer b), for this question? I came up with C) for
my incorrect...
asked 2 minutes ago -
Suppose that you know that in the population of full-time
employees in the United States, the...
asked 24 minutes ago -
This experiment was designed originally to sample various meat and carcass quality
aspects of Ontario pigs...
asked 25 minutes ago -
Dopamine Hydrochloride: draw the structure And Show the
functional groups in different colors and label the...
asked 17 minutes ago -
A rope supports a 10 kg dumbbell hanging from it. What is the
tension in the...
asked 16 minutes ago -
) Raw materials are studied for contamination. Suppose that
the number of particles of contamination per...
asked 39 minutes ago -
After running a regression analysis we calculated an F test and
the significance level was 0.15....
asked 35 minutes ago -
----Can someone please help me solve this one using JAVA
----I thank you in advance
Create...
asked 39 minutes ago -
1. What force primarily attracts the potassium ion to
the nitrate ion?
a. London forces...
asked 41 minutes ago -
What are the negative effects of abruptly stopping the use of
all fossil fuels? Give at...
asked 48 minutes ago -
Given that many conflict are the result of different parties having
different interests, is it possible...
asked 53 minutes ago -
A 750 g block can slide uniformly along the horizontal track
when a string attached to...
asked 56 minutes ago