A steam power plant operates on the reheat Rankine cycle. Steam enters the high-pressure turbine at...
A steam power plant operates on the reheat Rankine
cycle. Steam enters the high-pressure turbine at 12.5 MPa
and 5508C at a rate of 7.7 kg/s and leaves at 2 MPa. Steam is
then reheated at constant pressure to 400 C before it expands
in the low-pressure turbine. Steam leaves the condenser as a
saturated liquid. The exit of the turbine is saturated at the
condenser pressure
(a) the condenser pressure,
(b) the net power output, and (c) the thermal efficiency.
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A steam power plant operates on the reheat Rankine
cycle. Steam enters the high-pressure turbine at...
Steam power plant using the reheat Rankine cycle
A steam power plant operates using the reheat Rankine cycle. Steam enters the high pressure turbine at 12.5 MPa and 550ºC at a rate of 7.7 kg/s and leaves at 2MPa. Steam is then reheated at a constant pressure to 450ºC before it expands in the low pressure turbine. The isentropic efficiencies of the turbine and the pumpare 85% and 90%, respectively. Steam leaves the condenser as a saturated liquid. If the moisture content of the steam at the exit...
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 steam plant operates on a reheat Rankine cycle and has a net power output of...
A steam plant operates on a reheat Rankine cycle and has a net power output of 80MW. Steam enters the high pressure turbine at 10 MPa and 500 °C and the low pressure turbine at 1 MPa and 500 °C. Steam leaves the condenser as a saturated liquid at a pressure of 10kPa. The efficiency of the turbine is 80% and the efficiency of the pump is 95%. Determine the thermal efficiency of the cycle. Rankine Cycle with Reheat
Steam enters high-pressure turbine of a steam power plant that operates on ideal reheat Rankine cycle...
Steam enters high-pressure turbine of a steam power plant that operates on ideal reheat Rankine cycle at pressure and temperature of 5.5 MPa and 500°C, respectively. The steam leaves the high-pressure turbine as saturated vapor. The steam is then reheated to temperature of 400°C before it expands to a pressure of 7.5 kPa. Answer the following. i) Show the cycle on a T-s diagram with respect to saturation lines. ii) Determine the pressure at which reheating takes place. iii) Determine...
Consider a steam power plant that operates on a reheat Rankine cycle and has a net...
Consider a steam power plant that operates on a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 550°C and the low-pressure turbine at 1 MPa and 550°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 80 percent, and that of the pump is 95 percent. Show the cycle on a T-s diagram with respect...
Consider a steam power plant that operates on a reheat Rankine cycle and has a net...
Consider a steam power plant that operates on a reheat Rankine cycle and has a net power output of 80 MW. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 74 percent and that of the pump is 95 percent. Determine the quality (or temperature, if superheated) of the...
Example: Consider a steam power plant operating on the ideal reheat Rankine cycle. Steam enters the...
Example: Consider a steam power plant operating on the ideal reheat Rankine cycle. Steam enters the high-pressure turbine at 15 MPa and 600 °C and is condensed in the condenser at a pressure of 10 kPa. If the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10.4 percent, determine (a) the pressure at which the steam should be reheated and (b) the thermal efficiency of the cycle. Assume the steam is reheated...
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...
9-1-19 [OPM] Consider a steam power plant that operates on a reheat Rankine cycle. Steam enters...
9-1-19 [OPM] Consider a steam power plant that operates on a reheat Rankine cycle. Steam enters the high pressure turbine at 9 MPa, 600°C and leaves as a saturated vapor. The steam is then reheated to 500°C before entering the low pressure turbine, and is condensed in a condenser at 7 kPa. The mass flow rate (m) is 150 kg/s. Determine (a) the net power developed (het), (b) the rate of heat transfer (0) to the working fluid in the...
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands...
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands to 0.5 MPa, after which it is reheated to 450°C. The steam is then expanded through the low-pressure turbine to 7.5 kPa. Liquid water (Vi 0.001 m/kg) leaves the condensor at 30°C, is pumped to 5 MPa, and returned to the steam generator. Each turbine is adiabatic, with an isentropic efficiency of 81.6 % and the pump efficiency is 848 %. If the total...
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 steam plant operates on a reheat Rankine cycle and has a net power output of 80MW. Steam enters the high pressure turbine at 10 MPa and 500 °C and the low pressure turbine at 1 MPa and 500 °C. Steam leaves the condenser as a saturated liquid at a pressure of 10kPa. The efficiency of the turbine is 80% and the efficiency of the pump is 95%. Determine the thermal efficiency of the cycle. Rankine Cycle with Reheat
Example: Consider a steam power plant operating on the ideal reheat Rankine cycle. Steam enters the high-pressure turbine at 15 MPa and 600 °C and is condensed in the condenser at a pressure of 10 kPa. If the moisture content of the steam at the exit of the low-pressure turbine is not to exceed 10.4 percent, determine (a) the pressure at which the steam should be reheated and (b) the thermal efficiency of the cycle. Assume the steam is reheated...
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...
9-1-19 [OPM] Consider a steam power plant that operates on a reheat Rankine cycle. Steam enters the high pressure turbine at 9 MPa, 600°C and leaves as a saturated vapor. The steam is then reheated to 500°C before entering the low pressure turbine, and is condensed in a condenser at 7 kPa. The mass flow rate (m) is 150 kg/s. Determine (a) the net power developed (het), (b) the rate of heat transfer (0) to the working fluid in the...
In a reheat-cycle power plant, steam enters the high-pressure turbine at 5 MPa, 450°C, and expands to 0.5 MPa, after which it is reheated to 450°C. The steam is then expanded through the low-pressure turbine to 7.5 kPa. Liquid water (Vi 0.001 m/kg) leaves the condensor at 30°C, is pumped to 5 MPa, and returned to the steam generator. Each turbine is adiabatic, with an isentropic efficiency of 81.6 % and the pump efficiency is 848 %. If the total...
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