A Rankine cycle operates with water as the working fluid and has the following conditions: P1 = 7...
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A Rankine cycle operates with water as the working fluid and has the following conditions: P1 = 7...
An ideal reheat Rankine cycle with water as the working fluid operates the boiler at 20,000...
An ideal reheat Rankine cycle with water as the working fluid operates the boiler at 20,000 kPa, the reheater at 2000 kPa, and the condenser at 100 kPa. The temperature is 450 C at the entrance of the high-pressure and low-pressure turbines. The mass flow rate through the cycle is 1.74 kg/s. Determine the power used by pumps, the power produced by the cycle, the rate of heat transfer in the reheater, and the thermal efficiency of this system. Use...
An ideal reheat Rankine cycle with water as the working fluid operates the inlet of the...
An ideal reheat Rankine cycle with water as the working fluid operates the inlet of the high-pressure turbine at 8000 kPa and 450°C, the inlet of the low-pressure turbine at 300kPa and 500°C, and the condenser at 10 kPa. Determine the mass flow rate through the boiler needed for this system to produce a net 5000 kW of power and the thermal efficiency of the cycle.
3. (10 pts) A simple Rankine cycle operates with water as the working fluid between the...
3. (10 pts) A simple Rankine cycle operates with water as the working fluid between the pressures of 4 MPa and 20 kPa. The fluid leaves the boiler at 550°C, the turbine efficiency is 89% and the fluid exits the condenser as saturated liquid. The flow rate is 81.5 kg/s and the pump efficiency is 52%. Determine: a. The net power output, in kW. b. The rate of heat input in the boiler, in kW. C. The rate of heat...
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) Ideal Rankine A power plant operates using an ideal Rankine cycle. Saturated liquid water enters...
(1) Ideal Rankine A power plant operates using an ideal Rankine cycle. Saturated liquid water enters the pump at P1 = 25 kPa. After being pumped, it passes through the boiler before entering the turbine at P3 = 5 MPa and T3 = 500 °C. If the mass flowrate of the working fluid is m = 20 kg/s, what are Wnet, Oh, and ntn? Draw this on a T-s diagram, labeling the given pressures and temperature as well as arrows...
3) A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000...
3) A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa and the condenser at 50 kPa. At the entrance to the turbine, the temperature is 450°C. The isentropic efficiency of the turbine is 94 percent, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 6.3°C. The boiler is sized for a mass flow rate of 20 kg/s. Determine the rate at which heat is added in the...
Consider a power plant with water as the working fluid that operates on a Rankine cycle....
Consider a power plant with water as the working fluid that operates on a Rankine cycle. It has a net power output of 40 MW. Superheated steam enters the turbine at 8 MPa and 600°C (h = 3642 kJ/kg; s = 7.0206 kJ/kg K) and is cooled in the condenser at a pressure of 10 kPa by running cooling water from a lake through the tubes of the condenser. The isentropic efficiency of the turbine is 85%. The pump has...
A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa...
A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa and the condenser at 40 kPa. At the entrance to the turbine, the temperature is 380 °C. The isentropic efficiency of the turbine is 88 %, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 5.9 °C. The boiler is sized for a mass flow rate of 17 kg/s. Determine the following values. °C m®/kg 1 kJ/kg (1)...
1 ideal Rankine cycle with water as the working fluid operates between the pressure states (3.2,3,4)...
1
ideal Rankine cycle with water as the working fluid operates between the pressure states (3.2,3,4) and showing hea e 1. (20 points) A simple limits of 25 kPa and 45 MPa, with a turbine iniet temperature of 600 a) Complete the following T-s diagram for the cycle by labeling the and work (w) interactions b) Determine the required pump work (wn c) Determine the heat input (q d) Determine the steam quality () at turbine exit e) Determine the...
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits...
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 15 MPa in the boiler and 100 kPa in the condenser. Saturated steam enters the turbine. Determine the work produced by the turbine, the heat transferred in the boiler, and thermal efficiency of the cycle. As part of your solution, sketch a simplified diagram of the cycle, labelling each component, indicating where heat and work flows into or out of the system, and...
An ideal reheat Rankine cycle with water as the working fluid operates the boiler at 20,000 kPa, the reheater at 2000 kPa, and the condenser at 100 kPa. The temperature is 450 C at the entrance of the high-pressure and low-pressure turbines. The mass flow rate through the cycle is 1.74 kg/s. Determine the power used by pumps, the power produced by the cycle, the rate of heat transfer in the reheater, and the thermal efficiency of this system. Use...
3. (10 pts) A simple Rankine cycle operates with water as the working fluid between the pressures of 4 MPa and 20 kPa. The fluid leaves the boiler at 550°C, the turbine efficiency is 89% and the fluid exits the condenser as saturated liquid. The flow rate is 81.5 kg/s and the pump efficiency is 52%. Determine: a. The net power output, in kW. b. The rate of heat input in the boiler, in kW. C. The rate of heat...
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) Ideal Rankine A power plant operates using an ideal Rankine cycle. Saturated liquid water enters the pump at P1 = 25 kPa. After being pumped, it passes through the boiler before entering the turbine at P3 = 5 MPa and T3 = 500 °C. If the mass flowrate of the working fluid is m = 20 kg/s, what are Wnet, Oh, and ntn? Draw this on a T-s diagram, labeling the given pressures and temperature as well as arrows...
3) A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa and the condenser at 50 kPa. At the entrance to the turbine, the temperature is 450°C. The isentropic efficiency of the turbine is 94 percent, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 6.3°C. The boiler is sized for a mass flow rate of 20 kg/s. Determine the rate at which heat is added in the...
A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa and the condenser at 40 kPa. At the entrance to the turbine, the temperature is 380 °C. The isentropic efficiency of the turbine is 88 %, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 5.9 °C. The boiler is sized for a mass flow rate of 17 kg/s. Determine the following values. °C m®/kg 1 kJ/kg (1)...
1
ideal Rankine cycle with water as the working fluid operates between the pressure states (3.2,3,4) and showing hea e 1. (20 points) A simple limits of 25 kPa and 45 MPa, with a turbine iniet temperature of 600 a) Complete the following T-s diagram for the cycle by labeling the and work (w) interactions b) Determine the required pump work (wn c) Determine the heat input (q d) Determine the steam quality () at turbine exit e) Determine the...
A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 15 MPa in the boiler and 100 kPa in the condenser. Saturated steam enters the turbine. Determine the work produced by the turbine, the heat transferred in the boiler, and thermal efficiency of the cycle. As part of your solution, sketch a simplified diagram of the cycle, labelling each component, indicating where heat and work flows into or out of the system, and...
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