Question

A steam power plant is designed to operate on a reheat Rankine cycle to produce 115...

A steam power plant is designed to operate on a reheat Rankine cycle to produce 115 MW of a
net power output. Due to metallurgical limitation, the high-pressure turbine is limited to operate
at maximum pressure and temperature of 15 MPa and 650°C, respectively. The low-pressure
turbine is to operate at maximum pressure and temperature of 3.5 MPa, and 500°C,
respectively. Both high and low pressure turbines have maximum isentropic efficiency of 87
percent. The maximum reheat pressure is limited to maximum low-pressure turbine. The
condenser is set to operate at 15 kPa. The water pump used in this power plant has a maximum
efficiency of 93 percent.

Engineering   Mechanical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

There is no question bit mentioned. Bt these are common questions asked in question like this.

Hope u got ur answers.

?

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
QUESTION 5 A steam power plant is designed to operate on a reheat Rankine cycle to...
QUESTION 5 A steam power plant is designed to operate on a reheat Rankine cycle to produce 115 MW of a net power output. Due to metallurgical limitation, the high-pressure turbine is limited to operate at maximum pressure and temperature of 15 MPa and 650°C, respectively. The lowpressure turbine is to operate at maximum pressure and temperature of 3.5 MPa, and 500°C, respectively. Both high and low pressure turbines have maximum isentropic efficiency of 87 percent. The maximum reheat pressure...
A steam power plant runs on a reheat Rankine cycle. Steam enters both the high and...
A steam power plant runs on a reheat Rankine cycle. Steam enters both the high and low pressure turbines at 500oC. The maximum and minimum pressures of the cycle are 10 MPa and 10 kPa, respectively. Steam leaves the condenser as a saturated liquid. The moisture content of the steam at the exit of the low-pressure turbine is 4% if the actual expansion process is adiabatic; 8.5% if the ideal expansion process is isentropic. The isentropic efficiencies of the high-pressure...
In a power plant based on a simple Rankine cycle, steam enters the turbine at 15...
In a power plant based on a simple Rankine cycle, steam enters the turbine at 15 MPa and 900°C. The condenser pressure is 5 kPa. The turbine operates adiabatically and has an isentropic efficiency of 85%, and the pump also operates adiabatically and has an isentropic efficiency of 80%. Determine the work required to pump the water to the boiler in kJ/kg of water flowing, and the enthalpy of the water leaving the pump.
Consider a steam power plant which operates on the Rankine cycle. The pressures in the boiler...
Consider a steam power plant which operates on the Rankine cycle. The pressures in the boiler and the condenser are 5000 kPa and 40 kPa, respectively. The temperatures at the inlet of the turbine and at the inlet of the pump are 500oC and 70oC, respectively. The isentropic efficiency of the turbine is 94 percent, pressure and pump losses are negligible. If the mass flow rate of steam is 10 kg/s. Determine (a) the heat transfer rate in the boiler,...
A steam power plant of 15 MW operates on the simple ideal Rankine cycle such that...
A steam power plant of 15 MW operates on the simple ideal Rankine cycle such that the water leaves the condenser as a saturated liquid at a pressure of 15 kPa. The pressure of the water leaving the pump is 5.0 MPa, and the temperature of the steam entering the turbine is 650 ºC. (a) Show the sketch and cycle on a T-s diagram. Determine (b) the thermal efficiency of the cycle and (c) the mass flow rate in kg/s....
Consider a cogeneration power plant that is modified with reheat and that produces 3 MW of...
Consider a cogeneration power plant that is modified with reheat and that produces 3 MW of power and supplies 7 MW of process heat. Steam enters the high pressure turbine at 8 MPa and 500 C and expands to a pressure of 1 MPa. At this pressure, part of the steam is extracted from the turbine and routed to the process heater, while the remainder is reheated to 500 C and expanded in the low pressure turbine to the condenser...
Water is the working fluid in a Rankine cycle with reheat. Superheated vapor enters the turbine...
Water is the working fluid in a Rankine cycle with reheat. Superheated vapor enters the turbine at 10 MPa, 520°C, and the condenser pressure is 6 kPa. Steam expands through the first-stage turbine to 0.7 MPa and then is reheated to 520°C. The pump and each turbine stage have an isentropic efficiency of 70%. Determine for the cycle: (a) the heat addition, in kJ per kg of steam entering the first-stage turbine. (b) the percent thermal efficiency. (c) the magnitude...
Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters...
Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the turbine at 10 MPa and 500°C and is cooled in the condenser at a pressure of 7.5 kPa. a.)Determine the quality of the steam at the turbine exit. Use steam tables. b.)Determine the thermal efficiency of the cycle. c.)Determine the mass flow rate of the steam
Consider a combined gas-steam power cycle. The topping cycle is a simple Brayton cycle that has...
Consider a combined gas-steam power cycle. The topping cycle is a simple Brayton cycle that has a pressure ratio of 7. Air enters the compressor at 15 ºC at a rate of 10 kg/s and the gas turbine at 950 ºC. The bottoming cycle is a reheat Rankine cycle between the pressure limits of 6 MPa and 10 kPa. Steam is heated in a heat exchanger at a rate of 1.15 kg/s by the exhaust gases leaving the gas turbine,...
Steam enters the turbine of an ideal Rankine cycle power plant with a pressure of 12.5...
Steam enters the turbine of an ideal Rankine cycle power plant with a pressure of 12.5 MPa and a temperature of 600°C and expands adiabatically to condenser pressure equal to 30 kPa . Please answer the following: a. Represent the cycle on a T-s diagram, indicate the values of the isobars and temperature and entropy on the axes. b. Compute the thermal efficiency for this cycle.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT