What is the entropy change of the steam

Assignment Help Mechanical Engineering

Reference no: EM13703044

Steam enters a nozzle at 4 MPa and 640Â°C with a velocity of 20 m/s. This process may be considered reversible and adiabatic. The nozzle exit pressure is 0.1 MPa. (a) Draw a sketch of this process. Include all known information. (b) What is the entropy change of the steam? (c) What is the exit temperature? (d) What is the exit velocity?

Reference no: EM13703044

Questions Cloud

Determine the rate of energy transfer from the air to water : Water enters one stream of an unmixed stream heat exchanger at 20°C and increases in temperature by 10°C. Air enters the second stream on the heat exchanger at 400°C and 5 kg/s. The air temperature at the exit of the heat exchanger is 200°C cooler th..

Determine the shear and moment diagrams : Consider a simply supported beam of length 50ft subjected to a uniformly distributed downward load of 10kips/ft from x=10ft to x=40ft and concentrated downward loads of 100kips at x=10ft and x=40ft.

Average tractive effort exerted by the locomotive : An electric locomotive together with its train has a mass of 200 tonne. The average tractive resistance to motion is 55 N/tonne while starting from rest up a gradient of 1 in 100. Calculate time taken to travel the first 1 km if the average tractive ..

Determine if the entropy change of the system is positive : Consider two ideal gases, A and B that are initially separated. For each of the following processes, the gases are allowed to mix. Determine if the entropy change of the system is positive, negative, or zero. Explain. (a) The process occurs isotherma..

What is the entropy change of the steam : Steam enters a nozzle at 4 MPa and 640Â°C with a velocity of 20 m/s. This process may be considered reversible and adiabatic. The nozzle exit pressure is 0.1 MPa. (a) Draw a sketch of this process. Include all known information. (b) What is the entro..

Consider a simply supported beam of length : Consider a simply supported beam of length 50 ft subjected to a uniformly distributed downward load of 10 kips/ft from x=10 ft to x=40 ft and concentrated downward loads of 100 kips at x=10 ft and x=40 ft. Determine the shear and moment diagrams from..

Maximum allowed pressure within the cylindrical vessel : Consider a pressure vessel made by welding together two hemispheres of radius 20 ft and wall thickness 1.5 inches. If the allowed normal stress is 90 ksi, calculate the maximum allowed pressure within the spherical vessel.

Simply supported beam of length-shear and moment diagrams : Consider a simply supported beam of length 50 ft subjected to a uniformly distributed downward load of 10 kips/ft from x=10 ft to x=40 ft and concentrated downward loads of 100 kips at x=10 ft and x=40 ft. Determine the shear and moment diagrams from..

Calculate the bending stress : Consider a T shaped wooden beam comprised of a 2 x 6 and a 2 x 8 20 feet long. [Use nominal dimensions for beam cross section.] A steel plate 20 feet long and of cross section 6 x ½ inches is fastened to the top of the T. Calculate the bending stress..

User Account

All Pages