Determine the rate of steam flow-back-pressure steam

Assignment Help Mechanical Engineering

Reference no: EM13704763

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.

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.

Reference no: EM13704763

Questions Cloud

Density of the basketball in units of of batman per hogshead : Consider the following strange but true, units: 1 batman = 3 kilograms 1 hogshead = 63 gallons A basketball has a mass of approximately 624 grams and a volume of 0.25 cubic feet. Determine the density of the basketball in units of of batman per hogsh..

Valuable metal with a thin coating of pure gold : A golden bar of metal (5 centimeters by 18 centimeters by 4 centimeters) being transported by armored car is suspected of being fake, made from a less valuable metal with a thin coating of pure gold. The bar is found to have a mass of 2.7 kilograms. ..

Calculate the theoretical strain : For a cantilever beam of 10 inch long with a load at the free end, calculate the theoretical strain at 7 inch from the free end when deflection at loading point is 0.3 inch (Assume a beam thickness of 0.1 inch)

The water is then condensed isothermally to saturated liquid : Water vapor initially at 3.0 MPa and 300 C is contained within a piston-cylinder assembly. The water is cooled at constant volume until its temperature is 200 C. The water is then condensed isothermally to saturated liquid. For the water as the syste..

Determine the rate of steam flow-back-pressure steam : 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..

Create a pressure-enthalpy diagram : Create a Pressure-Enthalpy diagram for R134a. Be sure to show the saturated liquid line and the saturated vapor line together so that the entire saturation dome is displayed. Also include an isotherm, for t=70c, that extends from within the saturated..

Determine displacement of in diameter steel bar : Determine displacement (in) of a 1.08 in diameter steel bar, which is 834 ft long under a force of 33,222 lb if elasticity modulus is 30 x 106 psi. Make sure you do not round up your answer to less than 4 significant (non-zero) figures.

Voltage on vertical axis-current on horizontal axis : Using the graph paper provided, plot graph of voltage vs, current for the data in each table. Plot the entire graph on the same axes with voltage on the vertical axis and current on the horizontal axis. What is the similarity between these graphs? Wh..

Find its speed and the magnitude : Given that the station is on average 420 km above the Earth find its speed (in m/s) and the magnitude of centripetal acceleration

User Account

All Pages