Calculate the power input to the pump in kw

Assignment Help Civil Engineering
Reference no: EM13322706

A 60 MW Rankine steam power cycle in Iceland uses reheat. The system is comprised of a single adiabatic pump, a boiler using geothermal energy, two adiabatic turbine stages and a condenser. Water as the working fluid, which enters the 1st turbine stage at 200 bar and 480oC, expands to 30 bar then is rerouted to the boiler. Steam enters the 2nd stage turbine at 30 bar 440oC and expands to 0.06 bar when it is directed to the condenser. Using turbine and pump isentropic efficiencies of 84% and assuming that the heat exchangers are isobaric calculate the quantities listed below. (Note you can neglect potential and kinetic energy changes.)

a) The rate of heat required from the geothermal source in kW.

b) The power input to the pump in kW.

c) The overall efficiency.

d) The quality of the working fluid as it exists the 2nd turbine.

Reference no: EM13322706

Questions Cloud

Derive expression for entropy produced written in terms of t : An isolated system contains an incompressible substance with heat capacity C = kT, where k is a constant. The system is initially divided in two parts, with 1/3 of the mass at T1 and 2/3 of the mass at T2.
Explain strongest reducing agent to weakest reducing agent : Given the hypothetical redox reactions involving substances A, B, and C: A + B+ g? A+ + B C + A+ g? C+ + A B + C+ g? no reaction What is the arrangement of the substances in their order from strongest reducing agent to weakest reducing agent
Design a to perform various matrix operations : Design a to perform various matrix operations. class A matrix is a set of numbers arranged in rows and columns. Therefore, every element of a matrix has a row position and a column position.
Calculate the change in length of the aluminum rod : A straight rod consists of a 2cm long piece of aluminum attached to a 3cm long piece of steel. calculate the change in length of the aluminum rod
Calculate the power input to the pump in kw : A 60 MW Rankine steam power cycle in Iceland uses reheat. The system is comprised of a single adiabatic pump, a boiler using geothermal energy, two adiabatic turbine stages and a condenser.
Write a program that demonstrates the coin class : Write a program that demonstrates the Coin class. The program should create an instance of the class and display the side that is initially facing up.
Explain what is the final volume of the gas : The pressure of 6.0 L of an ideal gas in a flexible container is decreased to one-sixth of its original pressure, and its absolute temperature is decreased to one-forth of the original. What is the final volume of the gas
Create a class called song that has 3 attributes-title : Create a class called Song that has 3 attributes-title, artist, and price (which will be entered later as either 0.99 or 1.49). It should contain 2 constructor methods, all the necessary set and get methods, and a "toString" method that prints the..
What is the tension in the right cable : A 200-N beam is held horizontally by a vertical steel cable at each end. The beam is 18 m long. A 650-N box sits 3.0 m from the left end. What is the tension in the right cable

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine the expected drawdown in the pumping well

The drawdown in another observation well 60 m from the pumping well is 1.1 m. Calculate (a) the hydraulic conductivity of the aquifer, (b) the expected drawdown in the pumping well,

  Determine the horizontal force the wire exerts on the poles

A telephone wire 5 mm in diameter is suspended between telephone poles spaced 50 m apart. If the wind velocity is 100 km/h and the air is at 2 degrees C, 1 atm, determine the horizontal force (in N) the wire exerts on the poles.

  What are rotational velocity in rpm and linear velocities

One form of which consists of three equal weights joined by equal length ropes. The gaucho holds on to one weight spinning the bolas overhead. When the bolas is cast the weights cause the configuration to change

  Estimate cu value at a and b after clay layer consolidated

two isotropically consolidated undrained (ciu) triaxial tests, CU1 triaxial tests, CU1 and CU2, were conducted on a normally consolidated (Nc) clay under effective consolidation stresses of 100 and 200 kPa respectively.

  Find what depth of aggregate is needed at the angle theta

A 2000-lb wheel load is to be supported by aggregate over soil with a maximum bearing pressure of 1000 lb/sqft. What depth of aggregate is needed if the angle theta is 40 degrees

  Calculate the volume of the tank in gallons

A cubic shape tank has the dimensions of 10 m by 10 m by 20 m tall. Calculate the volume of he tank in gallons

  Determine the normal depth-velocity and the froude number

A PVC pipe with a diameter of 30 inches will carry a flow of 20 cfs. the bottom slope is 0.005 and the roughness coefficient is 0.015. determine the normal depth, critical depth, velocity and the froude number.

  Calculate the max tension and min tension of cable

The Golden Gate Bridge has a main span of 4200 ft, a sag of 470 ft, and a total static loading of 21,300 lb/linear foot. Calculate the max tension, min tension, and the total length of cable.

  Solve given differential equation by separation of variables

Given computer-generated direction field. Then sketch, by hand, an approximate solution curve that passes through each of the indicated points. Use different colored pencils for each solution curve.

  Write an equation on the line containing the given point

Write an equation on the line containing the given point and parallel given line. Express answer in the form y=mx+b (3,7) x+6y=5

  Determine final temperature of the steam and the heat input

Two kilograms of steam at 300kPa and a quality of 75% are heated in a closed container until a pressure of 600kPA is reached. Determine the final temperature of the steam and the heat input.

  Determine wet unit weight and dry unit weight-wet density

Given the following data for an undisturbed soil sample: Gs = 2.69, e = 0.65, water content = 10% Determine wet unit weight and dry unit weight, wet and dry density

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd