Steam at 2.5 MPa and 450C expands in a turbine adiabatically to saturated vapor at 50 kPa. determine the power output in kW if the flow rate is 2.1 kg/s

Steam enters an adiabatic turbine at 3MPa and 500C and exits at 30 kPa. If the efficiency of the turbine is 92%, find the actual and isentropic temperatures, and the change in specific volume across the turbine.

1. Steam at a pressure of 2MPA and temperature 300°C is passed at a constant rate into a desuperheater unit. The desuperheater is accomplished by continuously spraying water at 95 °C onto incoming superheated steam. The amount of water injected is so regulated that both the water and superheated steam finally change into dry steam at 2 MPa. If the resulting mixture of dry saturated steam leaves the desuperheater at 2MPA and the rate of I kg/s, find the mass of superheated steam used per hour and the mass of water to be injected per hour. Fond also the diameter of the pipe through which the superheated steam flows to the superheater if the speed of the steam through the pipe is not to exceed 25m/s..

The valve connected to a 450-liter insulated tank of air at 250 kPa and 50̊C is opened,allowing the gas to escape until its pressure drops to 120 kPa. An electric heater insidethe tank maintains the temperature at 50̊C. Using variable specific heats, Determine thefollowing:a) The mass of air withdrawn (kg)b) The energy input to the resistor (kJ)

A mass flowrate of 1 Ibm/s of water at 80 F and 70 pisa is mixed with 1 Ibm/s of saturated vapor water at 70 psia in a mixing chamber. During this process 100 Btu/s of heat is lost from the mixing chamber to the surrounding environment. The exiting stream leaves the mixing chamber at 70 psia. In the question that follows, select the answer that is closest to the true value. What is the quality of the exiting stream ?

2. Steam expands in a turbine from 4 MPa and 400°C to 50 kPa and 100°C at a rate of 2.3 kg/s. Heat is lost from the turbine at a rate of 58 kJ/s during the process. Find the power output of the turbine.

thermodynamics

An adiabatic steam turbine receives steam from two boilers. One flow has a mass flow rate (rim) of 5.7 kg/s at 3 MPa and 600 °C. The other flow has a mass flow rate (m) of 6.0 kg/s at 0.5 MPa and 600 °C. The exit flow is at 10 kPa with a quality of 100%. Neglect ΔΚΕ (Higure 1) Part A Determine the total power output. Express your answer to three significant figures. Vα ΑΣΦ vec ? MW Submit Request Answer Part B Provide Feedback Figure West