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Example A steam turbine receives steam with a specific enthalpy of 3121 kJ/kg. The steam leaves...
A ship's steam turbine receives 7200 lbm/min of steam at pressure of 900psia and a velocity...
A ship's steam turbine receives 7200 lbm/min of steam at pressure of 900psia and a velocity of 100ft/s. The steam leaves the turbine at 450 psia with a velocity of 800 ft/s. Specific enthalpy at the inlet and exit, respectively, are 1508.9 Btu/lbm and 1238.5 Btu/lbm. As the steam passes through turbine 12 Btu/lbm of heat is lost to the environment. a) Using the Steady Flow Energy Equation, determine the specific work generated by this turbine. (Btu/lbm) b) Determine the...
A steam power plant design consists of an ideal Rankine cycle with regeneration. Steam enters Turbine...
A steam power plant design consists of an ideal Rankine cycle with regeneration. Steam enters Turbine 1 at P1 and T1 at the rate of m1 and exits at P2. A fraction (y') of the steam exiting Turbine 1 is diverted to a closed feedwater heater while the remainder enters Turbine 2. A portion (y'') of the steam exiting Turbine 2 at P3 is diverted to an open feedwater heater while the remainder enters Turbine 3. The exit of Turbine...
Steam enters a horizontal pipe operating at steady state with a specific enthalpy of 1,671 kJ/kg...
Steam enters a horizontal pipe operating at steady state with a specific enthalpy of 1,671 kJ/kg and a mass flow rate of 0.5 kg/s. At the exit, the specific enthalpy is 2,162 kJ/kg. If there is no significant change in kinetic energy from inlet to exit, determine the rate of heat transfer between the pipe and its surroundings, in kW.
What are the specific enthalpy and specific volume of steam at 400.0°C and 80.0 bar? Number Number kJ/kg Î= 0 m²/kg Is...
What are the specific enthalpy and specific volume of steam at 400.0°C and 80.0 bar? Number Number kJ/kg Î= 0 m²/kg Is this steam superheated or saturated? O O saturated superheated If this steam is superheated, what is its degrees of superheat? If the steam is saturated, respond with "0". Number Estimate the temperature, specific enthalpy and specific volume of saturated steam at 5.25 bar. Number Number Number Tsar = 10 °C kJ/kg mº/kg If 18.0 m/min of steam at...
Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the...
Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the turbine with enthalpy 2675 kJ/kg and velocity 200 m/s. Had the flow been isentropic, the enthalpy would be 2315 k./kg at exit. Assume (V2s-V2). Determine the following: QUESTION 2 Total enthalpy at inlet in kJ/kg Enthalpy at exit in kJ/kg A 2392 B. 2695 C. 2461 D. 2335 Total isentropic enthalpy at exit in kJ/kg Total-to-total efficiency (%) The work done (in kJ/kg) E766...
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....
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...
An industrial steam turbine shown in the figure below receives 20 [kg/s] of superheated steam at...
An industrial steam turbine shown in the figure below receives 20 [kg/s] of superheated steam at 10 [MPa) and 500 [°C] (State 1). Steam is extracted for another industrial process at a rate of 5 kg/s) ata location in the turbine where the pressure is 1 [MPa) and the temperature is 200 [°C] (State 21. The remaining steam continues to expand through the turbine and exit at State 3, where the pressure is 10 [kPa) and the quality is 90%....
Superheated steam at 20 MPa, 560oC enters the turbine of a vapor power plant. The pressure...
Superheated steam at 20 MPa, 560oC enters the turbine of a vapor power plant. The pressure at the exit of the turbine is 0.7 bar, and liquid leaves the condenser at 0.4 bar at 75oC. The pressure is increased to 20.1 MPa across the pump and the specific enthalpy is 338.14 kJ/kg. The turbine isentropic efficiency is 81%. Cooling water enters the condenser at 20oC with a mass flow rate of 70.7 kg/s and exits the condenser at 38oC. For...
An insulated steam turbine receives 30 kg of steam per second at 3 MPa, 350 °C....
An insulated steam turbine receives 30 kg of steam per second at 3 MPa, 350 °C. At the point in the turbine where the pressure is 0.5 MPa, steam is bled off for processing equipment at the rate of 5 kg/s. The temperature of this steam is 200 °C. The balance of the steam leaves the turbine at 15 kPa, 90% quality. Determine the exergy per kilogram of the steam entering and at both points at which steam leaves the...
Question 5 1.5/3 points In a Rankine cycle, steam leaves the boiler and enters the ideal...
Question 5 1.5/3 points In a Rankine cycle, steam leaves the boiler and enters the ideal turbine at 6.9 MPala) as a saturated vapor. Condenser pressure is 6.9 kPaſa). The specific enthalpy of the subcooled condensate/feedwater at the discharge of the feedwater pump (h) is 166.36 kJ/kg. Identify the specific enthalpy (in kJ/kg) of the steam entering the turbine. 166.36 Calculate the quality (in %) of steam-water mixture leaving the turbine. Calculate the specific enthalpy (in kJ/kg) of the steam...
What are the specific enthalpy and specific volume of steam at 400.0°C and 80.0 bar? Number Number kJ/kg Î= 0 m²/kg Is this steam superheated or saturated? O O saturated superheated If this steam is superheated, what is its degrees of superheat? If the steam is saturated, respond with "0". Number Estimate the temperature, specific enthalpy and specific volume of saturated steam at 5.25 bar. Number Number Number Tsar = 10 °C kJ/kg mº/kg If 18.0 m/min of steam at...
Gas enters an adiabatic turbine with enthalpy 3456 kJ/kg and velocity 100 m/s. It leaves the turbine with enthalpy 2675 kJ/kg and velocity 200 m/s. Had the flow been isentropic, the enthalpy would be 2315 k./kg at exit. Assume (V2s-V2). Determine the following: QUESTION 2 Total enthalpy at inlet in kJ/kg Enthalpy at exit in kJ/kg A 2392 B. 2695 C. 2461 D. 2335 Total isentropic enthalpy at exit in kJ/kg Total-to-total efficiency (%) The work done (in kJ/kg) E766...
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...
An industrial steam turbine shown in the figure below receives 20 [kg/s] of superheated steam at 10 [MPa) and 500 [°C] (State 1). Steam is extracted for another industrial process at a rate of 5 kg/s) ata location in the turbine where the pressure is 1 [MPa) and the temperature is 200 [°C] (State 21. The remaining steam continues to expand through the turbine and exit at State 3, where the pressure is 10 [kPa) and the quality is 90%....
An insulated steam turbine receives 30 kg of steam per second at 3 MPa, 350 °C. At the point in the turbine where the pressure is 0.5 MPa, steam is bled off for processing equipment at the rate of 5 kg/s. The temperature of this steam is 200 °C. The balance of the steam leaves the turbine at 15 kPa, 90% quality. Determine the exergy per kilogram of the steam entering and at both points at which steam leaves the...
Question 5 1.5/3 points In a Rankine cycle, steam leaves the boiler and enters the ideal turbine at 6.9 MPala) as a saturated vapor. Condenser pressure is 6.9 kPaſa). The specific enthalpy of the subcooled condensate/feedwater at the discharge of the feedwater pump (h) is 166.36 kJ/kg. Identify the specific enthalpy (in kJ/kg) of the steam entering the turbine. 166.36 Calculate the quality (in %) of steam-water mixture leaving the turbine. Calculate the specific enthalpy (in kJ/kg) of the steam...
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