Homework Answers
Add Answer to:
i got s1=7.53 and p2=1bar
can you explain intetpolating with specific entropy to find
the value...
A steam turbine operates with P1 = 5 MPa and T1 = 600 °C at the...
A steam turbine operates with P1 = 5 MPa and T1 = 600 °C at the
inlet, an exit pressure of P2 = 100 kPa, a mass flow rate of ?̇ =
100 kg/s, and an isentropic efficiency of η = 85%. Complete a
thermodynamic analysis of the turbine, using the appropriate data
for water, by finding: (A) The temperature at the exit, T2, (B) the
work produced by the turbine, ?̇ ?, and (C) the rate of entropy
production...
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)...
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...
1.Steams enters a turbine operating at steady state with a mass flow rate of 4600kg/h. The...
1.Steams enters a turbine operating at steady state with a mass flow rate of 4600kg/h. The turbine develops a power output of 1000kW. At the inlet, the pressure is 60 bar, the temperature is 400° C, and the velocity is 10m/s. At the exit,the pressure is 0.1 bar, the quality is 0.90, and the velocity is 50m/s. Calculate the rate of heat transfer between the turbine and surroundings, in kW. Determine the entropy generation if the temperature of the surroundings...
1. Superheated water steam at 5 bar and 360 C enters a turbine operating at steady...
1. Superheated water steam at 5 bar and 360 C enters a turbine operating at steady state with a volume rate of 0.7 m3/s and expanded adiabatically to the exit state of 1 bar and 200 C, respectively. Kinetics and potential energy changes can be neglected. Determine: a) (2 pts) mass flow rate in kg/s (2 pts) power developed in kW (3 pts) total rate of entropy production in kW/K (4 pts) isentropic turbine efficiency
Can some one solve this question please Q4) A steam turbine at steady state is operated...
Can some one solve this question please
Q4) A steam turbine at steady state is operated at part load by throttling the steam to a lower pressure before it enters the turbine. Before throttling, the pressure and temperature are, respectively, 1.5 MPa and 320°C. After throttling, the pressure is 1 MPa. At the turbine exit, the steam is at 8 kPa and a quality of 90%. Heat transfer with the surroundings and all kinetic and potential energy effects can be...
A steam power plant design consists of an ideal Rankine cycle with reheat and regeneration. Steam...
A steam power plant design consists of an ideal Rankine cycle with reheat and 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 is reheated to T3 before entering Turbine 2. A fraction (y'') of the steam exiting Turbine 2 at P4 is diverted to an open feedwater heater while the remainder...
Solve all parts with clearly hand writing!! Question 3 (30) 3000 kg/min of Steam expands in...
Solve all parts with clearly hand writing!!
Question 3 (30) 3000 kg/min of Steam expands in a turbine from state 1 (hi 3214 kJ/kg, 4 MPa and 400 C) to state 2 at (h 2726 kd/kg, 120 °C and 1 bar). The velocity of steam at the inlet and exit is 200 m/sec and 50 m/sec respectively. The difference in the height (zyz) between inlet and exit of the turbine is 30 m. The turbine astray heat loss is s...
Consider a two-stage turbine operating at steady state with reheat at constant pressure between the stages....
Consider a two-stage turbine operating at steady state with reheat at constant pressure between the stages. Show that the maximum work is developed when the pressure ratio is the same across each stage. Use a cold air-standard analysis, assuming the inlet state and the exit pressure are specified, each expansion process is isentropic, and the temperature at the inlet to each turbine stage is the same. Kinetic and potential energy effects can be ignored.
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC...
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC undergoes adiabatic expansion through a turbine at a steady rate of 16.3 kg/s. The steam exits the turbine in a wet condition with a pressure of 0.34 bar and specific enthalpy of 2,355 kJ/kg. 25 points Determine the How Did I Do? How Did I Do? properties of the superheated steam at the turbine entrance (state 1): Specific volume, V: 0.0521 m^3/kg kJ/kg Specifio...
A steam turbine operates with P1 = 5 MPa and T1 = 600 °C at the
inlet, an exit pressure of P2 = 100 kPa, a mass flow rate of ?̇ =
100 kg/s, and an isentropic efficiency of η = 85%. Complete a
thermodynamic analysis of the turbine, using the appropriate data
for water, by finding: (A) The temperature at the exit, T2, (B) the
work produced by the turbine, ?̇ ?, and (C) the rate of entropy
production...
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)...
1. Superheated water steam at 5 bar and 360 C enters a turbine operating at steady state with a volume rate of 0.7 m3/s and expanded adiabatically to the exit state of 1 bar and 200 C, respectively. Kinetics and potential energy changes can be neglected. Determine: a) (2 pts) mass flow rate in kg/s (2 pts) power developed in kW (3 pts) total rate of entropy production in kW/K (4 pts) isentropic turbine efficiency
Can some one solve this question please
Q4) A steam turbine at steady state is operated at part load by throttling the steam to a lower pressure before it enters the turbine. Before throttling, the pressure and temperature are, respectively, 1.5 MPa and 320°C. After throttling, the pressure is 1 MPa. At the turbine exit, the steam is at 8 kPa and a quality of 90%. Heat transfer with the surroundings and all kinetic and potential energy effects can be...
Solve all parts with clearly hand writing!!
Question 3 (30) 3000 kg/min of Steam expands in a turbine from state 1 (hi 3214 kJ/kg, 4 MPa and 400 C) to state 2 at (h 2726 kd/kg, 120 °C and 1 bar). The velocity of steam at the inlet and exit is 200 m/sec and 50 m/sec respectively. The difference in the height (zyz) between inlet and exit of the turbine is 30 m. The turbine astray heat loss is s...
- Question 3 Superheated steam at a pressure and temperature of 60 bar and 450 degC undergoes adiabatic expansion through a turbine at a steady rate of 16.3 kg/s. The steam exits the turbine in a wet condition with a pressure of 0.34 bar and specific enthalpy of 2,355 kJ/kg. 25 points Determine the How Did I Do? How Did I Do? properties of the superheated steam at the turbine entrance (state 1): Specific volume, V: 0.0521 m^3/kg kJ/kg Specifio...
Most questions answered within 3 hours.
-
A group of 100 race car drivers have an average speed of 102
mph. Assuming a...
asked 46 seconds from now -
You are waiting at the bus stop for a bus, which arrives every X
minutes, where...
asked 1 minute ago -
A 66 Ω resistor and a 7.5 μF capacitor are connected in series
to an ac...
asked 8 minutes ago -
Stefani German, a 40-year-old woman, plans to retire at age
65, and she wants to accumulate...
asked 7 minutes ago -
To test Upper H 0 : sigma =2.3 versus Upper H 1 : sigma greater
than...
asked 39 minutes ago -
explain using physics theory either one
Why should you not put foil in the microwave? or...
asked 56 minutes ago -
You have purchased a $1,000,000 million Face or Par Value 5-year
T-note. This 5-year T-note pays...
asked 54 minutes ago -
Describe what “scope creep” is and how can it be avoided? Who is
typically the person...
asked 45 minutes ago -
Any permanent decrease in autonomous real spending will cause
even larger decreases in real GDP per...
asked 45 minutes ago -
A large distributor has 8 retail outlets. Currently each outlet
manages its ordering independently. Demand at...
asked 57 minutes ago -
Two objects repel/attract each other. What can one say about their
charges?
asked 54 minutes ago -
9 A website that facilitates transactions by bringing together
buyers and sellers from all over the...
asked 58 minutes ago