A simple Rankine cycle is operating between the 12.5 MPa on the high pressure side and...

A simple Rankine cycle is operating between the 12.5 MPa on the high pressure side and 9.93 kPa on the low pressure side. The temperature entering the turbine is 550 degrees Celsius. Find the quality exiting the turbine and the overal thermal efficiency.

Expert Solution

samet mamat answered 2 years ago

Consider an ideal Rankine cycle using water with a high-pressure side of the cycle at a...

Consider an ideal Rankine cycle using water with a high-pressure side of the cycle at a supercritical pressure. Such a cycle has a potential advantage of minimizing local temperature differences between the fluids in the steam generator, such as the instance in which the high-temperature energy source is the hot exhaust gas from a gas- turbine engine. Calculate the thermal efficiency of the cycle if the state entering the turbine is 30 MPa, 550°C, and the condenser pressure is 5...

An ideal Rankine cycle operates between the pressure limits of 15 MPa in the boiler and...

An ideal Rankine cycle operates between the pressure limits of 15 MPa in the boiler and 50 kPa in the condenser. The boiler generates steam at a mass flow rate of 50 kg/s and it enters the turbine at a temperature of 1100 °C. a) Calculate the net output of the cycle b) Calculate the thermal efficiency of the cycle.

(10 pts) A simple Rankine cycle operates between the pressures of 10 kPa and 6 MPa....

(10 pts) A simple Rankine cycle operates between the pressures of 10 kPa and 6 MPa. Steam exits the boiler at 550oC, liquid exits the condenser at 40oC, the “wet steam” exiting the turbine has a quality of 90%, the pump efficiency is 64% and the net power output from the system is 87.2 MW. Determine: (2 pts) The mass flow rate through the system, in kg/s. (2 pts) The rate of heat rejection from the condenser, in kW. (2...

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 4 MPa in the boiler and 5 kPa in the condenser and a turbine inlet temperature of 700°C. The boiler is sized to provide a steam flow of 50 kg/s. Determine the power produced by the turbine and consumed by the pump. Use steam tables. Find the values of power produced by the turbine and consumed by the pump in kW

A steam powerplant operating on an ideal Rankine Cycle is operating at a boiler pressure of...

A steam powerplant operating on an ideal Rankine Cycle is operating at a boiler pressure of 5.75MPa, steam enters the turbine at 500°C and expands to 147kPa. If the powerplant is producing 5MW of energy find the following: Enthalpies at each point of the cycle 1,2,3,B (hint: you will have to interpolate horizontally for point 1 and interpolate for the f,g,fg values for point 2) Net work in kj/kg Mass flow rate of throttle steam used by the powerplant Heat...

Rankine cycle operates on boiler pressure 15 MPa and condenser pressure of 30 kPa. Superheated steam...

Rankine cycle operates on boiler pressure 15 MPa and condenser pressure of 30 kPa. Superheated steam enters the high-pressure turbine at 450°C. The high-pressure turbine expands the steam and enters the re-heater at 2.5 MPa. The steam is reheated until temperature reaches 450°C before being expanded in low-pressure turbine to condenser pressure of 30 kPa. Assume the isentropic efficiency of the low-pressure and high-pressure turbines are 94% and 89% respectively, and pump is working isentropically. Neglect the change in kinetic...

10–15E A simple ideal Rankine cycle with water as the working fluid operates between the pressure...

10–15E A simple ideal Rankine cycle with water as the working fluid operates between the pressure limits of 2500 psia in the boiler and 5 psia in the condenser. What is the minimum temperature required at the turbine inlet such that the quality of the steam leaving the turbine is not below 80 percent. When operated at this temperature, what is the thermal efficiency of this cycle?

1. A steam powerplant operating on an ideal Rankine Cycle is operating at a boiler pressure...

1. A steam powerplant operating on an ideal Rankine Cycle is operating at a boiler pressure of 5.75 MPa, steam enters the turbine at 500°C and expands to 147 kPa. If the powerplant is producing 5MW of energy find the following: a. Enthalpies at each point of the cycle 1,2,3,B b. Net work in kj/kg c. Mass flow rate of throttle steam used by the powerplant d. heat added in the boiler e. heat rejected in the condenser f. cycle...

Consider a steam power plant operating on the ideal reheat Rankine cycle. Steam enters the high-pressure...

Consider a steam power plant operating on the ideal reheat Rankine cycle. Steam enters the high-pressure turbine at PH MPa and TH °C and is condensed in the condenser at a pressure of PL kPa. Assume the steam is reheated to the inlet temperature of the high-pressure turbine, and that pump work is NOT negligible. If the moisture content of the steam at the exit of the low-pressure turbine is not to exceed w% percent, determine: (a) the pressure at...

Consider a steam power plant operating on a simple ideal Rankine cycle in which the steam...

Consider a steam power plant operating on a simple ideal Rankine cycle in which the steam enters the turbine at 3 MPa and 350C and is condensed in the condenser at 75 kPa. Determine the thermal efficiency of this cycle and sketch an appropriately labeled T-s diagram. Also compare this thermal efficiency to that a Carnot heat engine operating between these same two limits. The change in enthalpy across the pump = work done by the pump: h2-h1= v1(P2– P1)

Question