Draw a device schematic and T-s diagram for a solar power plant that runs on a reheat-regeneratio...
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Draw a device schematic and T-s diagram for a solar power plant that runs on a reheat-regeneratio...
A cogeneration plant is similar to a power plant, but some of the thermal energy in the working fluid is used for process heat
A cogeneration plant is similar to a power plant, but some of the thermal energy in the working fluid is used for process heat (for example heating buildings, steel making, or oil refining). An ideal reheat Rankine cycle with regeneration is modified to a cogeneration plant by adding a process heater as shown in the figure below. The process heater acts as a heat removal step where the enthalpy of the steam is reduced by the heat output (qprocess=h7-h3). The...
A steam power plant operates on an ideal reheat Rankine cycle between the pressure limits of...
A steam power plant operates on an ideal reheat Rankine cycle between the pressure limits of 5 MPa and 100 kPa. The temperature of the steam att the turbine is 500 C degree and the mass flow rate of steam through the cycle is 35 kg/s. a) Determine the thermal efficiency of the cycle. b) determine the net power output of the power plant ( Assume both the turbine and the pump have isentropic efficiency of 100%). c) Draw the...
Consider a power plant with water as working fluid that operates on a reheat Rankine cycle...
Consider a power plant with water as working fluid that operates on a reheat Rankine cycle and has a net power output of 75 MW. Steam enters the high-pressure turbine at 10 MPa and 400°C and the low-pressure turbine at 1 MPa and 400°C. Water leaves the condenser as a saturated liquid at a pressure of 100 kPa. The isentropic efficiency of the high-pressure turbine is 85% and the low-pressure turbine in 100%. The pump has an isentropic efficiency of...
1. A Steam Power Plant that operates on an ideal regenerative Rankine Cycle with an open...
1. A Steam Power Plant that operates on an ideal regenerative Rankine Cycle with an open feedwater heater is considered. The turbine inlet conditions are 6 MPa, 450 C. The regeneration pressure is 0.4 MPa. The condenser pressure is 20 kPa. a) Draw the T-s diagram, and the sketch of the steam power plant. b) Calculate the low pressure pump work. c) Calculate the high pressure pump work. d) Calculate the fraction of the steam extracted from the turbine for...
Question 3 [30 marks] A reheat Rankine cycle is designed for a steam power plant. Steam...
Question 3 [30 marks] A reheat Rankine cycle is designed for a steam power plant. Steam enters both the high- and low- pressure turbines at 600oC. The maximum and minimum pressures of the cycle are 20 MPa and 20 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...
a) A steam power plant operates on an ideal reheat-regenerative Rankine cycle. Steam enters the high-pressure...
a) A steam power plant operates on an ideal reheat-regenerative Rankine cycle. Steam enters the high-pressure turbine (HPT) at a pressure of 10 MPa and temperature of 550°C. The steam expands through the HPT stage to a pressure of 0.6 MPa. Some of the steam at the end of the expansion process in HPT is extracted for a regeneration process in a closed-type feedwater heater. The steam leaves the heater as a saturated liquid and then is throttled to the...
A proposed steam power plant design consists of an ideal Rankine cycle with reheat and regeneration....
A proposed steam power plant design consists of an ideal Rankine cycle with reheat and regeneration. Steam enters Turbine 1 at Pl and T1 at the rate of mi and exits at P2. A fraction () of the steam exiting Turbine 1 is diverted to an open feedwater heater while the remainder is reheated to T3 before entering Turbine 2. The condenser operates at P4. Saturated liquid exits the condenser and is fed to Pump 1. The outlet of Pump...
Consider a reheat-regenerative vapor power cycle with two feedwater heaters, a closed feedwater heater and an...
Consider a reheat-regenerative vapor power cycle with two feedwater heaters, a closed feedwater heater and an open feedwater heater. Steam enters the first turbine at 8.0 MPa, 480 C and expands to 0.7 MPa. The steam is reheated to 440°C before entering the second turbine, where it expands to the condenser pressure of 0.008 MPa Steam is extracted from the first turbine at 2 MPa and fed to the closed feedwater heater. Feedwater leaves the closed heater at 205 C...
An existing steam turbine operating on a reheat Rankine cycle in which the first stage turbine...
An existing steam turbine operating on a reheat Rankine cycle in
which the first stage turbine has an inlet pressure of 12.5MPa and
inlet temperature of 550 degree celcius. The second stage has an
inlet temperature of 500 degree celcius. Assuming both turbines and
water pump run at 100% isentropic efficiency. The steam leaves the
condenser as saturated liquid at 15kPa.
Based on the set up above, the engineer decides to add an open
feedwater heater (FWH) to the reheat...
1. A thermoelectric steam generation plant operates on a Rankine cycle with reheating and two boiler...
1. A thermoelectric steam generation plant operates on a Rankine cycle with reheating and two boiler feed water heaters, one open and one closed. Steam enters the high pressure turbine at P8 and 500 ° C and the low pressure turbine at P10 and 500 ° C. The condenser pressure is 40 kPa. Steam is drawn from the turbine at a pressure P11 for the closed feed water heater and at a pressure P12 for the open feed water heater....
Consider a power plant with water as working fluid that operates on a reheat Rankine cycle and has a net power output of 75 MW. Steam enters the high-pressure turbine at 10 MPa and 400°C and the low-pressure turbine at 1 MPa and 400°C. Water leaves the condenser as a saturated liquid at a pressure of 100 kPa. The isentropic efficiency of the high-pressure turbine is 85% and the low-pressure turbine in 100%. The pump has an isentropic efficiency of...
1. A Steam Power Plant that operates on an ideal regenerative Rankine Cycle with an open feedwater heater is considered. The turbine inlet conditions are 6 MPa, 450 C. The regeneration pressure is 0.4 MPa. The condenser pressure is 20 kPa. a) Draw the T-s diagram, and the sketch of the steam power plant. b) Calculate the low pressure pump work. c) Calculate the high pressure pump work. d) Calculate the fraction of the steam extracted from the turbine for...
a) A steam power plant operates on an ideal reheat-regenerative Rankine cycle. Steam enters the high-pressure turbine (HPT) at a pressure of 10 MPa and temperature of 550°C. The steam expands through the HPT stage to a pressure of 0.6 MPa. Some of the steam at the end of the expansion process in HPT is extracted for a regeneration process in a closed-type feedwater heater. The steam leaves the heater as a saturated liquid and then is throttled to the...
A proposed steam power plant design consists of an ideal Rankine cycle with reheat and regeneration. Steam enters Turbine 1 at Pl and T1 at the rate of mi and exits at P2. A fraction () of the steam exiting Turbine 1 is diverted to an open feedwater heater while the remainder is reheated to T3 before entering Turbine 2. The condenser operates at P4. Saturated liquid exits the condenser and is fed to Pump 1. The outlet of Pump...
Consider a reheat-regenerative vapor power cycle with two feedwater heaters, a closed feedwater heater and an open feedwater heater. Steam enters the first turbine at 8.0 MPa, 480 C and expands to 0.7 MPa. The steam is reheated to 440°C before entering the second turbine, where it expands to the condenser pressure of 0.008 MPa Steam is extracted from the first turbine at 2 MPa and fed to the closed feedwater heater. Feedwater leaves the closed heater at 205 C...
An existing steam turbine operating on a reheat Rankine cycle in
which the first stage turbine has an inlet pressure of 12.5MPa and
inlet temperature of 550 degree celcius. The second stage has an
inlet temperature of 500 degree celcius. Assuming both turbines and
water pump run at 100% isentropic efficiency. The steam leaves the
condenser as saturated liquid at 15kPa.
Based on the set up above, the engineer decides to add an open
feedwater heater (FWH) to the reheat...
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