Question

Consider now a turbine(Q=0) that operates with N2 steam with T1 = 753.15K and P1 =...

Consider now a turbine(Q=0) that operates with N2 steam with T1 = 753.15K and P1 = 6 bar and P2 = 1 bar. The efficiency is 80% and the molar flowrate is (note not mass flow rate) is 200 mol/s. The inlet velocity is 30 m/s and the exit velocity is 120 m/s. The inlet is 6 m above the base of the turbine and the exit is 2 m above the base.  

a. Determine the output of the turbine with units.

b. what is the exhaust temperature and quality (if saturated) for 100% efficiency?

c. What is the output temperature and quality (if saturated) for the given(80%) efficiency?

d. What are the enthalpy and entropy for the 80% efficiency of the turbine?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A steam turbine has inlet steam pressure p1 = 1.4 MPa absolute. Inlet steam temperature is...
A steam turbine has inlet steam pressure p1 = 1.4 MPa absolute. Inlet steam temperature is T1 = 400 oC. This corresponds to inlet enthalpy per unit mass of h1 = 3121 kJ/kg. Exit pressure of the steam is p2 = 101 kPa absolute. Exit steam temperature is T2 = 100 oC. This corresponds to exit enthalpy per unit mass of h2 = 2676 kJ/kg. Inlet speed of the steam is V1 = 15 m/s and exit speed is V2...
Problem 1) Steam at 10 bar and 330°C is fed to an adiabatic turbine at a...
Problem 1) Steam at 10 bar and 330°C is fed to an adiabatic turbine at a mass flow rate of m = 5kg /s • . The output stream is saturated steam at 1.1 bar. The inlet steam flows through a 15 cm diameter pipe and the exit steam discharges through a 20 cm diameter pipe. a) Calculate the velocity of the input and output streams in m/s. b) The power generated by the turbine in kW.
13)  A turbine, operating under steady-flow conditions, receives 5000 kg of steam per hour. The steam enters...
13)  A turbine, operating under steady-flow conditions, receives 5000 kg of steam per hour. The steam enters the turbine at a velocity of 3000 m/min, an elevation of 5 m and a specific enthalpy of 2787 kJ/kg. It leaves the turbine at a velocity of 6000 m/min, an elevation of 1 m and a specific enthalpy of 2259 kJ/kg. Heat losses from the turbine to the surroundings amount to 16736 kJ/h. Determine the power output of the turbine. 14) 12 kg...
P2) Steam flows steadily through an adiabatic turbine in a power plant. The inlet conditions of...
P2) Steam flows steadily through an adiabatic turbine in a power plant. The inlet conditions of the steam are 6 MPa, 400 °C and 119 cm2 . The exit conditions are 40 kPa, 92 percent quality, 50 m/s and 20 kg/s. Determine the power output.
1. You are to do a preliminary design study for a small demonstration steam turbine power...
1. You are to do a preliminary design study for a small demonstration steam turbine power plant. - Steam will be provided by a small steam generator fired by natural gas.   - Your system will take in steam at 30 bar and 400 oC. - The steam passes through a two stage turbine. At a pressure of 10 bars, the steam leaves the first stage of the turbine and will pass through a reheat loop in the steam generator which...
Steam enters a converging-diverging nozzle at steady state with P1 = 40bar T1 = 400°C and...
Steam enters a converging-diverging nozzle at steady state with P1 = 40bar T1 = 400°C and a velocity of 12m/s. The steam flows through the nozzle with negligible heat transfer and no significant change in potential energy. At the exit P2 = 15bar and the velocity is 700 m/s. The mass flow rate is 2.5 kg/s. Determine the exit area of the nozzle in m2
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 =...
Air enters the compressor of a simple gas turbine at p1 = 14 lbf/in2, T1 = 520°R. The isentropic efficiencies of the compressor and turbine are 83 and 87%, respectively. The compressor pressure ratio is 16 and the temperature at the turbine inlet is 2500°R. The volumetric flow rate of the air entering the compressor is 9000 ft3/min. Use an air-standard analysis. Determine all temperatures at each state. A) Determine the net power developed, in Btu/h. (Already did this part,...
Steam enters an adiabatic turbine at 7 MPa, 700 °C and 80 m/s and leaves at...
Steam enters an adiabatic turbine at 7 MPa, 700 °C and 80 m/s and leaves at 50 kPa, 150 °C, and 140 m/s. If the power output of the turbine is 6 MW, determine: i)          Mass flowrate of the steam flowing through the turbine.                                      ii)        The isentropic efficiency of the turbine.
A horizontal steady-state turbine is being designed to serve as an energy source for a small...
A horizontal steady-state turbine is being designed to serve as an energy source for a small electrical generator. (assume its adiabatic and frictionless) The power required from the turbine is 1037 kW. The inlet to the turbine is steam at T1 = 600 0 C and P1 = 10 bar, with a mass flow rate of 2.5 kg/s. The inlet pipe is 10 cm in diameter. The conditions at the turbine exit are T2 = 400 0 C and P2...
Steam enters an adiabatic turbine at 1,000 psia and 900 F with a mass flow rate...
Steam enters an adiabatic turbine at 1,000 psia and 900 F with a mass flow rate of 6 lbm/s and leaves at 5 psia. The isentropic efficiency of the turbine is 0.90. Neglect the kinetic and potential energy changes of the steam. What is the quality at the isentropic exit state, 2s (X2s)? What is the exit temperature of the steam (T2)? What is the power output of the turbine?