An open cycle power plant is to be designed such that the turbine output is directly...
An open cycle power plant is to be designed such that the turbine output is directly used for industrial process heating. The industrial process required 5kg/s steam at 200oC and the plant should produce 5kW. The boiler pressure should not exceed 25bar and the isentropic efficiency of the turbine can be assumed as 90%. Considering the above design constrains find the turbine inlet temperature and pressure. (hint: A good design should deliver dry saturated steam out from the turbine) Write down all the assumption you made
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An open cycle power plant is to be designed such that the turbine output is directly...
An open cycle power plant is to be designed such that the turbine output is directly...
An open cycle power plant is to be designed such that the turbine output is directly used for industrial process heating. The industrial process required 5kg/s steam at 200oC and the plant should produce 5kW. The boiler pressure should not exceed 25bar and the isentropic efficiency of the turbine can be assumed as 90%. Considering the above design constrains find the turbine inlet temperature and pressure. (hint: A good design should deliver dry saturated steam out from the turbine) Write...
A turbine receives steam at 60bar and 3500C and the power output is 5000kW. For industrial...
A turbine receives steam at 60bar and 3500C and the power output is 5000kW. For industrial process heating, it is planned to bleed off 4000kg of steam per hour at a temperature of 2500C from the turbine. Find the boiler capacity and the reduction in power output from the turbine. Assume isentropic efficiency of the turbine as 100% and the condenser pressure of 0.04 bar. Write down all the assumption you made.
You are to analyze a simple steam power plant. At the boiler exit, the pressure is...
You are to analyze a simple steam power plant. At the boiler exit, the pressure is 8 MPa and the temperature is 1000 °C. The turbine isentropic efficiency is 85%. The condenser pressure is 15 kPa and the water is a saturated liquid at the condenser exit. The pump isentropic efficiency is 80%. Answer the following: a) What is the quality at the exit in %, if the turbine is assumed isentropic? b) What is the work output of the...
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...
Consider a steam power plant which operates on the simple ideal Rankine cycle (shown in the...
Consider a steam power plant which operates on the simple ideal
Rankine cycle (shown in the next page), where the boiler pressure
is 3 MPa and the condenser saturation temperature is 50°C. The
temperature at the exit of the boiler is 500°C. Water leaves the
condenser as a saturated liquid. The mass flow rate through each
component is 15 kg/s. Calculate:
1. The power output of the steam power plant
2. The thermal efficiency of the steam power plant
Now,...
A combined gas turbine-vapor power plant has a net power output of 100 MW. Air enters...
A combined gas turbine-vapor power plant has a net power output of 100 MW. Air enters the compressor of the gas turbine at 100kPa, 300K, and is compressed to 1200kPa. The isentropic efficiency of the compressor is 84%. The conditions at the inlet to the turbine are 1200kPa and 1400 K. Air expands through the turbine, which has an isentropic efficiency of 88%, to a pressure of 100kPa. The air then passes through the interconnecting heat exchanger, and is finally...
(30 points) Rankine Cycle An ideal Rankine cycle has a turbine power output of 4 MW....
(30 points) Rankine Cycle An ideal Rankine cycle has a turbine power output of 4 MW. Saturated liquid at 20 kPa leaves the condenser, and the vapor at the exit to the isentropic turbine has a quality of 95 percent. The boiler pressure is 1.4 MPa. a. Find the mass flow rate of the steam (kg/s) b. What is the heat transfer into the boiler? c. What is the thermal efficiency for this cycle? Condenser
3. A water vapor thermoelectric plant operates in the regenerative Rankine cycle with two open feed...
3. A water vapor thermoelectric plant operates in the
regenerative Rankine cycle with two open feed water heaters as
shown in the figure. The plant maintains the turbine inlet at 10
MPa and 600 ° C, and operates the condenser at 5 kPa. Steam is
drawn from the turbine at 0.6 and 0.2 MPa. The water comes out of
both feed water heaters as a saturated liquid. The isentropic
efficiency for the turbine and the pumps is 90%. For a...
Question A.1 A schematic of a gas turbine combined cycle generating plant is shown in Figure...
Question A.1 A schematic of a gas turbine combined cycle generating plant is shown in Figure A1.1 on the next page. Exhaust gas from the gas turbine generator pass througha heat recovery steam generator (HRSG) which generates steam to drive a steam turbine generator. The following data is provided for the plant: Gas turbine 18.9:1 Pressure ratio Compressor air inlet temperature Turbine inlet temperature 15°C t 273 288 1350°C +273- 1623 588 kg/s T, T3 Exhaust gas mass flow Isentropic...
Combined Gas and Steam Power Plant The highest temperature at the inlet of a gas turbine...
Combined Gas and Steam Power Plant The highest temperature at the inlet of a gas turbine can be 1600oC. The temperature of the ambient air is 27oC. Determine the maximum pressure ratio and the associated efficiency. Determine the conditions (temperatures and pressure) at the various points of the cycle. What’s the maximum temperature of the exhaust gases? Determine the amount of natural gas required for a 500 MW plant. Determine the associated emissions. What’s the total amount of exhaust gas?...
Consider a steam power plant which operates on the simple ideal
Rankine cycle (shown in the next page), where the boiler pressure
is 3 MPa and the condenser saturation temperature is 50°C. The
temperature at the exit of the boiler is 500°C. Water leaves the
condenser as a saturated liquid. The mass flow rate through each
component is 15 kg/s. Calculate:
1. The power output of the steam power plant
2. The thermal efficiency of the steam power plant
Now,...
(30 points) Rankine Cycle An ideal Rankine cycle has a turbine power output of 4 MW. Saturated liquid at 20 kPa leaves the condenser, and the vapor at the exit to the isentropic turbine has a quality of 95 percent. The boiler pressure is 1.4 MPa. a. Find the mass flow rate of the steam (kg/s) b. What is the heat transfer into the boiler? c. What is the thermal efficiency for this cycle? Condenser
3. A water vapor thermoelectric plant operates in the
regenerative Rankine cycle with two open feed water heaters as
shown in the figure. The plant maintains the turbine inlet at 10
MPa and 600 ° C, and operates the condenser at 5 kPa. Steam is
drawn from the turbine at 0.6 and 0.2 MPa. The water comes out of
both feed water heaters as a saturated liquid. The isentropic
efficiency for the turbine and the pumps is 90%. For a...
Question A.1 A schematic of a gas turbine combined cycle generating plant is shown in Figure A1.1 on the next page. Exhaust gas from the gas turbine generator pass througha heat recovery steam generator (HRSG) which generates steam to drive a steam turbine generator. The following data is provided for the plant: Gas turbine 18.9:1 Pressure ratio Compressor air inlet temperature Turbine inlet temperature 15°C t 273 288 1350°C +273- 1623 588 kg/s T, T3 Exhaust gas mass flow Isentropic...
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