An ideal Rankine cycle operates between 2700 psia and 1050° F at throttle and 4 psia...

An ideal Rankine cycle operates between 2700 psia and 1050° F at throttle and 4 psia in the condenser. One high pressure open type feed-water heater and one low pressure open type feed water heater are placed at 700 psia and 190 psia respectively. a) Draw the schematic flow and T-S diagrams of the cycle [3] b) Calculate mass flow rate in the both heaters. [2] c) Calculate heat rejected. [2] d) Calculate cycle efficiency. [4] e) Calculate work ratio. [1] Assumption: 1 lbm/h flow at turbine throttle and no flow pressure drops.

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samet mamat answered 1 year ago

An ideal Rankine cycle operates with a turbine inlet pressure of 600 psia and a turbine...

An ideal Rankine cycle operates with a turbine inlet pressure of 600 psia and a turbine inlet temperature of 526 oF. The steam is isentropically expanded through the turbine to 15 psia as illustrated on the T-s diagram shown below. Using the Mollier diagram, determine the enthalpy at the turbine inlet, in BTU/lbm, under these operating conditions. State your answer in whole numbers.

An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine...

An ideal Rankine cycle operates with a turbine inlet pressure of 900 psia and a turbine inlet temperature of 572 oF. The steam is isentropically expanded through the turbine to 5 psia as illustrated on the T-s diagram shown below. Using the Mollier diagram, determine the percent moisture at the turbine outlet under these operating conditions. State your answer in whole numbers.

4. A Rankine cylce operates between pressures of 2 psia and 1500 psia. If the steam...

4. A Rankine cylce operates between pressures of 2 psia and 1500 psia. If the steam entering the turbine is superheated to 800oF, calculate the efficiency of the cycle. Neglect pump work. Note: The peak of the superheat phase of this cycle is outside the range of the text steam tables and is difficult to locate on the text Mollier chart since it does not have a 1500 psia constant pressure line. Please use the following information taken from the...

A steam Rankine cycle operates between the pressure limits of 1500 psia in the boiler and...

A steam Rankine cycle operates between the pressure limits of 1500 psia in the boiler and 1 psia in the condenser. The turbine inlet temperature is 800°F. The turbine isentropic efficiency is 90 percent, the pump losses are negligible, and the cycle is sized to produce 2500 kW of power. Calculate the mass flow rate through the boiler, the power produced by the turbine, the rate of heat supply in the boiler, and the thermal efficiency. Use steam tables

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.

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

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?

An ideal Rankine cycle operates without superheat (wet cycle) as shown in the following T-s diagram....

An ideal Rankine cycle operates without superheat (wet cycle) as shown in the following T-s diagram. If saturated steam is expanded from 450 psia to steam with 5 % moisture, use the Mollier diagram and steam tables, as necessary, to determine the pump inlet temperature, in oF. State your answer to one decimal place.

A steam power plant operates on the simple ideal rankine cycle. the steam enters the turbine...

A steam power plant operates on the simple ideal rankine cycle. the steam enters the turbine at 4 MPa and 500 C and leaves it at 50 kPa and 150 C. the water leaves the condenser as a saturated liquid and is subsequently displaced to the boiler by means of a pump at a temperature of 85 C, which is the isentrophic efficiency of the turbine?

8. In a Rankine cycle steam enters the turbine at 900 psia and 1000oF and exhausts...

8. In a Rankine cycle steam enters the turbine at 900 psia and 1000oF and exhausts at 1 psia. What is the thermal efficiency? Neglect pump work. State your answer as a percent to one decimal place. Example: 25.2 9. Steam is expanded to 12% moisture at 1 psia in a Rankine cycle. If the initial pressure is 400 psia, what is the efficiency? Neglect pump work. Express your answer as a percent to one decimal place. Example: 32.5 I...

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