A 4 kg/s of fluid enters a device with an initial pressure of 700 kPa, initial velocity is 70 m/s and the fluid initial density is 3 kg/m3. The fluid leaves the device at 182 kPa,150 m/s and 0.80 kg/m3. The heat loss from the device is 19 kJ/kg and the work done by the fluid is 232 kW. Determine the change in internal energy, in kJ/kg

A 4 kg/s of fluid enters a device with an initial pressure of 700 kPa, initial velocity is 70 m/s and the fluid initial density is 3 kg/m3. The fluid leaves the device at 182 kPa,150 m/s and 0.80 kg/m3. The heat loss from the device is 19 kJ/kg and the work done by the fluid is 232 kW. Determine the change in internal energy, in kJ/kg

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Air enters a nozzle steadily at 2.21 kg/m3 and 30 m/s and leaves at 0.762 kg/m3 and 180 m/s. If the inlet area of the nozzle is 80 cm2, determine (a) the mass flow rate through the nozzle, and (b) the exit area of the nozzle.
2. Air is compressed from 0.1 MPa and 12 °C to a pressure of 1.0 MPa while being cooled at a rate of 363.3284 (kJ/kg) by circulating water through the compressor casing. The volume flow rate of the air at the inlet conditions is 90.79 m^3/min, and the power input to the compressor is 700 kW. Determine (a) the mass flow rate of the air and (b) the temperature at the compressor exit and (c) the density of air at the compressor exit. Use the thermodynamic table for value.
Steam enters a nozzle at 400°C and 800 kPa with a velocity of 10 m/s, and leaves at 300°C and 200 kPa while losing heat at a rate of 25 kW. For an inlet area of 800 cm2, determine the velocity and the volume flow rate of the steam at the nozzle exit.
Air enters a 16-cm-diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and it leaves the pipe at 180 kPa and 40°C. Determine (a) the volume flow rate of air at the inlet, (b) the mass flow rate of air, and (c) the velocity and volume flow rate at the exit.
Steam enters a nozzle at 400°C and 700 kPa with a velocity of 10 m/s, and leaves at 320°C and 150 kPa while losing heat at a rate of 25 kW. For an inlet area of 800 cm2.Determine the volumetric flow rate of the steam in m3/s
Steam enters a turbine steadily at 7 MPa and 600°C with a velocity of 60 m/s and leaves at 25 kPa with a quality of 95 percent. A heat loss of 20 kJ/kg occurs during the process. The inlet area of the turbine is 150 cm2 , and the exit area is 1400 cm2. Determine the mass flow rate of the steam.
Steams flow steadily through an adiabatic turbine. The inlet conditions of the steam are 10 MPa, 450 degrees Celsius and 80 m/s, and the exit conditions are 10 kPa, 92% quality and 50 m/s. The mass flow rate of steam is 12 kg/s. Determine: a) The change in kinetic energy b) The power output c) The turbine inlet area delta ke=-1.95 kj/kg W out =10.2 MW A in =0.00447 m2
Steam enters a turbine steadily at 7 MPa and 600°C with a velocity of 60 m/s and leaves at 25 kPa with a quality of 95 percent. A heat loss of 20 kJ/kg occurs during the process. The inlet area of the turbine is 150 cm2 , and the exit area is 1400 cm2. Determine the exit velocity.
A fluid with a pressure of 820 kPa, specific volume of 0.30 m3/kg and a velocity of 150 m/s enters a device. The work done by the fluid is 460 kJ/kg and the heat loss due to radiation is 28 kJ/kg. The exit condition of the fluid are 130 kPa, 0.82 m/kg and 320 m/s. Determine the change in internal energy.
Steam flows steadily through an adiabatic turbine. The inlet conditions of the steam are 10MPa, 400°C, and 100 m/s, and the exit conditions are 10 kPa, 88 percent quality, and 50m/s. The mass flow rate of the steam is 18 kg/s. Determine (a) the change in kinetic energy,(b) the power output, and (c) the turbine inlet area.
Steam enters a turbine steadily at 7 MPa and 600°C with a velocity of 60 m/s and leaves at 25 kPa with a quality of 95 percent. A heat loss of 20 kJ/kg occurs during the process. The inlet area of the turbine is 150 cm2, and the exit area is 1400 cm2. Determine (a) the mass flow rate of the steam, (b) the exit velocity, and (c) the power output.
Include a free body diagram Air enters a nozzle steadily at 2.21 kg/m3 and 30 m/s and leaves at 0.762 kg/m3 and 180 m/s. If the inlet area of the nozzle is 80 cm2, determine (a) the mass flow rate through the nozzle, and (b) the exit area of the nozzle.