This preview shows pages 1–2. Sign up to view the full content.
1
Indian Institute of Technology Kharagpur
Department of Mechanical Engineering
Thermodynamics
ME22002
Tutorial 3 (Mass and Energy Analysis of Control Volumes)
1.
Air enters a 28cm diameter pipe steadily at 200 kPa and 20°C
with a velocity of 5 m/s. Air is heated as it flows, and 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.
2.
Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s
and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80
cm
2
. Determine (a) the mass flow rate through the nozzle, (b) the exit
temperature of the air, and (c) the exit area of the nozzle. (Ans: (a)
0.5304 kg/s, (b) 184.6°C, (c) 38.7 cm
2
)
3.
Steam flows steadily through an adiabatic turbine. The inlet conditions of
the steam are 10 MPa, 450°C, and 80 m/s, and the exit conditions are 10
kPa, 92 percent quality, and 50 m/s. The mass flow rate of the steam is 12
kg/s. Determine (a) the change in kinetic energy, (b) the power output,
and (c) the turbine inlet area. ( Ans: (a) 1.95 kJ/kg, (b) 10.2 MW, (c)
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview. Sign up
to
access the rest of the document.
 Spring '11
 MKDAS
 Mechanical Engineering

Click to edit the document details