Determine the rate of steam flow

Assignment Help Mechanical Engineering
Reference no: EM13704727

A 20 MW back-pressure steam turbine receives steam at stagnation pressure of 4 MPa and stagnation temperature of 300oC, exhausting from the last stage at stagnation pressure of 0.35 MPa. The turbine isentropic efficiency is 0.884, and mechanical losses are 2% of the actual enthalpy drop. Sketch the expansion process in Mollier diagram. Determine the rate of steam flow.

Reference no: EM13704727

Questions Cloud

Hypothesis testing : Hypothesis testing is a well-structured process that consists of several logical steps, and it aims at refining a business decision.Hypothesis testing is a quite common technique used by researchers. With regard to hypothesis testing, answer the ..
Determine the amount of oxygen in the tank : The pressure gauge on a 2.5-m^3 oxygen tank reads 500 kPa. Determine the amount of oxygen in the tank if the temperature is 28 degrees C and the atmospheric pressure is 97 kPa.
A piston cylinder device contains : A piston cylinder device contains about 0.25kg of saturated water liquid @ 125C. Now water is heated at constant pressure until it becomes saturated vapor. How much is the work done during this process? How much is the heat transfer into the system?
At the exit from the first stage nozzles the steam velocity : At the exit from the first stage nozzles the steam velocity is 244 m/s, specific volume 0.0686 m3 /kg, mean diameter 762 mm and steam angle 76o measured from the axial direction. Determine the nozzle height of this stage.
Determine the rate of steam flow : A 20 MW back-pressure steam turbine receives steam at stagnation pressure of 4 MPa and stagnation temperature of 300oC, exhausting from the last stage at stagnation pressure of 0.35 MPa. The turbine isentropic efficiency is 0.884, and mechanical loss..
Determine the initial temperature of the h2o : Rigid steel tank with a volume of 1 m3 contains 2 kg of H2O initially at 400 kPa. Determine the initial temperature of the H2O
Determine the initial temperature : A frictionless piston-cylinder contains 3.0 kg of H2O and is initially at 300 kPa. The initial volume is 1.0 m3. The water is heated until the temperature is 300 C. If the volume within the system reaches 1.5 m3, the piston hits a set of stops and is..
Find the damping coefficient : A 90 kg pilot ejects from a plane and reaches a steady state velocity of 30 m/s with one parachute open. Neglect any air drag force on the pilot and assume that the air drag force can be modeled as an ideal damper i.e. linearly proportional to the ve..
Closed systems-control volume systems-transient systems : Explain whether the following situations and should be modeled as closed systems, control volume systems, or transient systems. Convert the following temperatures to °F, °C, K, R (4 pts) a. 98.6 °F b. 298 K c. 5715 °F e. 100 °C. Convert the following..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Team dynamic are based on a number of interpersonal and

team dynamic are based on a number of interpersonal and environmental factors that influence a teams behavior. what

  A convergent-divergent nozzle with an exit-to-throat area

a convergent-divergent nozzle with an exit-to-throat area ratio of 1.616 has exit and reservoir pressures equal to

  Heat transfer coefficient at the surface of the base plate

Consider a 1000-W iron whose base plate is made of .5 cm thick aluminium alloy 2024-T6 (p = 2270 kg/m^3, cp= 875 J/kg*K, alpha = 7.3 x 10 ^-5 m^2/s). The base plate has a surface area of .03 m^2.

  A steam engine drop-valve is closed by a spring after the

a steam engine drop-valve is closed by a spring after the operation of a trip gear. the stiffness of the spring is such

  The magnitude and direction of the resultant force

Consider the cylindrical weir of diameter 3 m and lenght 6m.if fluid on the left has specific gravity of 1.6,and on the right has a specific gravity of 0.8,find the magnitude and direction of the resultant force

  Determine the maximum span lmax of a simply supported log

a timber company wishes to increases sales of timber by supplying log cabin kits that can be assemed and used as

  Explain what will the ratio of the angle of twist

What will the ratio of the angle of twist be to that of the hollow shaft if the maximum shear stress in the material of 75 N / mm ^2 and what is the ratio of actual permissible shear stress?

  A 150 hp diesel engine for running an emergency generator

a 150 hp diesel engine for running an emergency generator in a building ha sa compression ratio of 19 with a cutoff

  The remaining energy is dissipated by free convection into

a south facing wall of a building is 5 m high and 7 m wide. the wall absorbs the incident solar energy at a rate of 500

  Consider a piston-cylinder arrangement containing 5057 x

consider a piston-cylinder arrangement containing 5.057 x 10-4 kg of dry air. for an isothermal expansion process

  What is the force exerted by the atmosphere downward on the

a pressure vessel of radius 10.4 in is filled with a gas at a pressure of 525.0 psi gauge. the top of the vessel is

  Determine the power in hp delivered by the motor a when the

the elevator e has a weight of 6600lb when fully loaded and is connected as shown to a counterweight w of weight of

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