Rate of heat transfer to the steam

Assignment Help Mechanical Engineering
Reference no: EM13950248

Steam enters the turbine of a Rankine cycle at 16 MPa, 5608C. The condenser pressure is 8 kPa. The turbine and pump each have isentropic efficiencies of 85%, and the mass flow rate of steam entering the turbine is 120 kg/s. Determine

(a) the net power developed, in kW.

(b) the rate of heat transfer to the steam passing through the boiler, in kW.

The isentropic pump efficiency is 82%. Cooling water enters the condenser at 188C and exits at 368C with no significant change in pressure. Determine

(a) the net power developed, in kW.

(b) the thermal efficiency.

(c) the mass flow rate of cooling water, in kg/s.

Reference no: EM13950248

Questions Cloud

Determine the steam quality at the turbine exit : For T 5 808F, determine the steam quality at the turbine exit, the steam mass flow rate, in lb/h, and the thermal efficiency. Plot the quantities of part (a) versus T ranging from   80 to 1058F.
Dna and the steps of protein synthesis : Describe the structure of DNA and the steps of protein synthesis. Describe the relationships between the following terms:
Append the last two lines of each file to the file : Find the differences between the two files and append the result to the file called "scales".out (Hint: diff command can do this)
Does the life-cycle cost approach have limitations : Use the cost information and calculate an environmental impact cost per 1,000 kg of surfactants. Which of the two approaches would you now recommend? Does the life-cycle cost approach have limitations? Explain.
Rate of heat transfer to the steam : Steam enters the turbine of a Rankine cycle at 16 MPa, 5608C. The condenser pressure is 8 kPa. The turbine and pump each have isentropic efficiencies of 85%, and the mass flow rate of steam entering the turbine is 120 kg/s. Determine
Select the primary keys for each table in your list. : Using the final table list you created for Learning Event 3, select the Primary Keys for each table in your list. Then, select one of your tables and complete field specifications for each field.
Commercial milk-processing industry began to evolve : After the 1850's, several advancements occurred and the commercial milk-processing industry began to evolve. Select an element/development you think is the most important and justify why you feel this way
Calculate the total pounds of delivery boxes saved : Calculate the total pounds of delivery boxes saved because of the new packaging. How much does this save in dollars? How many trees are saved because of recycling and reduction in demand for boxes?
What is the approximate value of this investment : What is the approximate value of this investment today if the appropriate discount rate is 9% per year? a. $23,250b. $27,250c. $21,970d. None of the above

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Calculate the energy transfer for each of the components

An air standard dual cycle operates with a compression ratio of 15. At the beginning of the compression the conditions are 17°C, 0.95 bar, and 3.8L. The amount of heat added is 6.3 kJ, of which one-third is added at constant volume and the remainder ..

  Electrical heater of problem

Consider the electrical heater of Problem 7.49. If the blower were to malfunction, terminating airflow while the heater continued to operate at 1000 W/m, what tem- perature would the heater assume?

  What is the mass of the piston if the gas pressure inside

a gas is contained in a vertical cylinder fitted with a piston. atmospheric pressure outside is 1 bar and the piston

  If m 20 kg determine the stiffness of the spring so that

the governing equation for a simple mass-spring system exemplified in class ism? kx 0if m 2.0 kg determine the

  Carnot heat pump cycle executed in a steady-flow system

Consider a Carnot heat pump cycle executed in a steady-flow system in the saturated liquid-vapor mixture region of R-134a. The R-134a is flowing at a rate of 0.264 kg/s. It is known that the maximum absolute temperature in the cycle is 1.25 times the..

  Develop an expression for the velocity profile of the fluid

A viscous fluid flows under its own weight between two very wide, stationary, flat plates inclined at an angle theta to the horizontal. Develop an expression for the velocity profile of the fluid assuming fully developed steady, laminar flow

  Transport theorem is required in context of aircraft dynamic

Using the transport theorem approach, derive the conservation of linear momentum equations. State all assumptions. Why the transport theorem is required in the context of aircraft dynamics?

  A pump accepts liquid water at 60 acircdegf and 14 psia and

a pump accepts liquid water at 60 acircdegf and 14 psia and compresses it to a pressure of 100 psia. the pump has a

  Steam expands isentropically from 2 mpa and 500 k to a

steam expands isentropically from 2 mpa and 500 k to a final state in which the quality is 0.90. determine the final

  A raindrop of mass 336 10-5 kg falls vertically at constant

a raindrop of mass 3.36 10-5 kg falls vertically at constant speed under the influence of gravity and air resistance.

  Pressures at beginning and end of isothermal expansion

Air in a piston cylinder assembly undergoes a Carnot power cycle. The isothermal expansion and compression processes occur at 1400 Kelvin and 350 Kelvin, respectively. The pressures at the beginning and end of the isothermal compression are 100 kPa a..

  Calculate the radius of a vanadium atom given that v has a

calculate the radius of a vanadium atom given that v has a bcc crystal structure a density of 5.96gcm3 and an atomic

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