Engineering, 17.03.2020 04:34 lilianajimva

A steam turbine in a small electric power plant is designed to accept 4500 k~gr of steam at 60 bar and 500:C and exhaust the stem at I0 bar. Assuming that the turbine is adiabatic and has been well designed (so that s,,, = 0), compute the exit temperature of the steam and the power generated by the turbine. b. The efficiency of a turbine is defined to be the ratio of the Lvork actually obtained from the turbine to the work that would be obtained if the turbine operated isentropically between the same inlet and exit pressures. If the turbine in part (a) is adiabatic but only SO percent efficient. what would be the exit temperature of the steam

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Answers: 2

Answer

Engineering, 04.07.2019 18:20

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?

Answers: 3

Answer

Engineering, 04.07.2019 18:20

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)

Answers: 3

Answer

You know the right answer?

A steam turbine in a small electric power plant is designed to accept 4500 k~gr of steam at 60 bar a...

Questions