Question

Sketch coordinated, labeled flow and T-s diagrams for the ideal Rankine cycle. Tabulate the temperatures, entropies,...

Sketch coordinated, labeled flow and T-s diagrams for the ideal Rankine cycle.
Tabulate the temperatures, entropies, pressures, enthalpies, and quality or degree of
superheat for each significant state shown on the diagram for a throttle at 1000 psia and
1000F and a condenser at 5 psia. Determine the net work, heat added, thermal
efficiency, heat rate, and heat rejected in the condenser. If the power plant output is
100 megawatts and the condenser cooling-water temperature rise is 15 Rankine
degrees, what is the steam flow rate and cooling-water flow rate? Neglect pump work.

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400...
Water is the working fluid in an ideal Rankine cycle. Steam enters the turbine at 1400 lbf/in2 and 1000°F. The condenser pressure is 2 lbf/in.2 The net power output of the cycle is 350 MW. Cooling water experiences a temperature increase from 60°F to 76°F, with negligible pressure drop, as it passes through the condenser. a) Determine the mass flow rate of steam, in lb/h. b) The rate of heat transfer, in Btu/h, to the working fluid passing through the...
Consider a steam power plant which operates on the Rankine cycle. The pressures in the boiler...
Consider a steam power plant which operates on the Rankine cycle. The pressures in the boiler and the condenser are 5000 kPa and 40 kPa, respectively. The temperatures at the inlet of the turbine and at the inlet of the pump are 500oC and 70oC, respectively. The isentropic efficiency of the turbine is 94 percent, pressure and pump losses are negligible. If the mass flow rate of steam is 10 kg/s. Determine (a) the heat transfer rate in the boiler,...
A steam power plant of 15 MW operates on the simple ideal Rankine cycle such that...
A steam power plant of 15 MW operates on the simple ideal Rankine cycle such that the water leaves the condenser as a saturated liquid at a pressure of 15 kPa. The pressure of the water leaving the pump is 5.0 MPa, and the temperature of the steam entering the turbine is 650 ºC. (a) Show the sketch and cycle on a T-s diagram. Determine (b) the thermal efficiency of the cycle and (c) the mass flow rate in kg/s....
Steam leaves the boiler of a 100 MW Rankine cycle power plant at 400°C and 3.5MPa....
Steam leaves the boiler of a 100 MW Rankine cycle power plant at 400°C and 3.5MPa. The Turbine has an isentropic efficiency of 85% and exhausts at 15 kPa. In the condenser, the water is subcooled to 38°C by lake water at 13°C. The pump isentropic efficiency is 75%. a) Draw and label the T-s diagram for this cycle b) Determine the cycle’s thermal efficiency c) Determine the mass flow rate of the steam in the boiler (kg/h) d) Determine...
Design a simple Rankine cycle for your LNG plant. Your process should be scaled to produce...
Design a simple Rankine cycle for your LNG plant. Your process should be scaled to produce 50MW of net power. Minimum driving force=5-degree Fahrenheit; Isentropic efficiency=88%; Cooling water inlet temp.=60 degree Fahrenheit; Turbine inlet steam Temp=950 degree Fahrenheit. Assume you have saturated liquid leaving the condenser, no pressure drops in heat exchangers, and a minimum turbine outlet quality of 95%. a. A process flow diagram with streams numbered and for steam and cooling water in lb./hr. b. A table of...
value of y is ____4___ Consider an ideal Rankine Cycle using H2O as the fluid medium....
value of y is ____4___ Consider an ideal Rankine Cycle using H2O as the fluid medium. The condenser is at y kPa. (That is, if y = 3 the condenser pressure is 3 kPa). The water exits the boiler at 9 MPa and 600oC. The mass flow rate of the water is (0.25 + y/200) kg/s. (That is, if y =3, then the mass flow is 0.265 kg/s). Find the temperature at the pump exit.                                                 T2 =...
An 850-MW Rankine cycle operates with turbine inlet steam at 1200 psia and 1000°F and condenser...
An 850-MW Rankine cycle operates with turbine inlet steam at 1200 psia and 1000°F and condenser pressure at 1 psia. There are three feedwater heaters placed optimally as follows: (a) the high-pressure heater is of the closed type with drains cascaded backward; (b) the intermediate-pressure heater is of the open type; (c) the low- pressure heater is of the closed type with drains pumped forward. Each of the turbine sections has the same polytropic efficiency of 90 percent. The pumps...
Increasing the temperature of the heat addition (T subscript H) in any heat engine cycle, with...
Increasing the temperature of the heat addition (T subscript H) in any heat engine cycle, with keeping all other parameters unchanged: A. None of the answers. B. Decreases the heat added at high temperature. C. Increases the thermal efficiency of the cycle. D. Decreases the thermal efficiency of the cycle. 1 points    QUESTION 2 The maximum thermal efficiency of the Rankine cycle power plant is achieved when: A. it works on Carnot heat engine cycle. B. the pump work...
Water is the working fluid in a regenerative Rankine cycle with one closed feedwater heater. Steam...
Water is the working fluid in a regenerative Rankine cycle with one closed feedwater heater. Steam enters the turbine at 1400 lbf/in.2 and 1000°F and expands to 120 lbf/in.2, where some of the steam is extracted and diverted to the closed feedwater heater. The remaining steam expands through the second-stage turbine to the condenser pressure of 3.5 lbf/in.2 Each turbine stage and the pump have isentropic efficiencies of 85%. Flow through the condenser, closed feedwater heater, and steam generator is...
1) A nozzle is a device for increasing the velocity of a steadily flowing stream of...
1) A nozzle is a device for increasing the velocity of a steadily flowing stream of fluid. At the inlet to a certain nozzle the enthalpy of the fluid is 3025 kJ/kg and the velocity is 60 m/s. At the exit from the nozzle the enthalpy is 2790 kJ/kg. The nozzle is horizontal and there is negligible heat loss from it. (i) Find the velocity at the nozzle exit. (ii) If the inlet area is 0.1 m2 and specific volume...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT