1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350...
4.40 A steam turbine has an inlet of 3 kg/s water at 1200 kPa and 350°C with a velocity of 15 m/s. The exit is at 100 kPa, 150°C and very low velocity. Find the specific work and the power produced.
2. The flow rate of steam through a turbine is 2.8 kg/s. The inlet and exit specific enthalpies are 2326 kJ/kg and 1861 k]/kg respectively, while the inlet and exit velocities are 25 m/s and 120 m/s. The heat loss through the casing 29 kW. Calculate the shaft power of the turbine (kW) (Take care with units!) 2. The flow rate of steam through a turbine is 2.8 kg/s. The inlet and exit specific enthalpies are 2326 kJ/kg and 1861...
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 a turbine at 9 MPa and T1°C and leaves at 20 kPa with a quality equal to 0.60. Neglecting the changes in kinetic and potential energies, determine T1 if the mass flow rate through the turbine is 4 kg/s. The turbine’s power output is 7.5 MW and the heat loss from the turbine is 5 kJ/kg.
A steam turbine, as shown in Figure Q3, operates at steady state with inlet conditions of Pi= 2 MPa, T1 = 480°C and producing 4000 kW. Saturated steam leaves the turbine at a pressure of 0.1 bar where it is condensed at 45.81 °C in the condenser. There is no significant heat transfer between the turbine and the condenser and their surroundings, and kinetic and potential energy changes between inlet and exit are negligible. A steam turbine, as shown in...
Homework 2 Problem 1: A piston-cylinder device initially contains 0.35-kg steam at 3.5 MPa, superheated by 7.4 C. Now the stream loses heat to the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid water. The cooling continues until the cylinder contains water at 200C. Determine (a) the final pressure and the quality (if mixture), (b) the boundary work, (c) the amount of heat transfer when the piston first hits...
Thermo one Question 5 A steam turbine generates energy in the form of work at the rate of 346.1 kJ/kg of steam. The steam at the inlet of the turbine is at 8 MPa, 480oC, and at a velocity of 163.5 m/s. The steam exits the turbine at 2 MPa, 240oC, and a velocity of 55.3 m/s. Heat transfer to the surroundings occurs where the outer surface (boundary) temperature is at 333.5oC. Determine the rate of entropy production (kJ/kg-K) within...
Question 38 (2 points) A steam turbine receives 10 kg/s of superheated steam at 120 bar and 600°C. The steam expands adiabatically through the turbine and exits at a pressure of 0.2 bar and a quality of 90%. The steam inlet velocity is 200 m/s and the exit velocity is 50 m/s. Determine the power output of the turbine. 12.531 kW e) 12,344 kW (0) 12,719 kW None of the above
Air at 10 degree C and 80 kPa enters the diffuser of a jet engine steadily with a velocity of 200 m/s. The inlet area of the diffuser is 0.4 m^2.The air leaves the diffuser with a velocity that is very small compared with the inlet velocity. Determine the mass flow rate of the air and the temperature of the air leaving the diffuser. Air at 100 kPa and 280 K is compressed steadily to 600 kPa and 400 K....
its the power output in KW 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 mass flow rate of the steam and (b) the power output.