A piston-cylinder assembly contains air

Assignment Help Mechanical Engineering

Reference no: EM13706987

A piston-cylinder assembly contains air at 227C and 300 kPa. Heat is supplied from a reservoir at 900 K causing the air to expand the path Pv^1.2 constant until the pressure is 200 kPa. The surroundings are at 27C and 95 kPa. Determine the second law efficiency for this process.

Reference no: EM13706987

Questions Cloud

How much time is needed for the plane to clear intersection : A Boeing 747 "Jumbo Jet" has a length of 56.1 m. The runway on which the plane land intersects another runway, the width of the intersection is 26.3 m. How much time is needed for the plane to clear the intersection

Air in a piston-cylinder initially : 10 kg of air in a piston-cylinder initially at 0.5 Mpa, 227 Celsius, undergoes two processes in series. constant temperature expansion to triple the volume. constant volume heating to the initial p = 0.5 MPa.

Compute how long does it take to hit the ground : During liftoff, a hot-air balloon accelerates upward at a rate of 3.5m/s2. The balloonist drops an object over the side of the gondola when the speed is 15 m/s. How long does it take to hit the ground

Mass flow rate of steam entering the first stage of turbine : Water is the working fluid in a regenerative Rankine cycle with one closed feed water heater and one open feed water heater. Steam enters the turbine at 1400 psi and 1000 F and expands to 500 psi, where some of the steam is extracted and diverted to ..

A piston-cylinder assembly contains air : A piston-cylinder assembly contains air at 227C and 300 kPa. Heat is supplied from a reservoir at 900 K causing the air to expand the path Pv^1.2 constant until the pressure is 200 kPa. The surroundings are at 27C and 95 kPa. Determine the second law..

Is the car accelerating : A car is traveling at a constant speed of 60 mi/h on a circular track. Is the car accelerating

Heat capacities constant volume-constant pressure for gas : The compound system in the sketch below contains a gas (Cv0 = 2.5 mR) on both sides of an internal wall. As heat is transferred across the wall, the piston moves to the right until the gases obtain thermal equilibrium at T2. During this process the s..

Find the speed of the cyclist at the end of the descent : While cycling at speed of 11 m/s, Lance Armstrong starts going downhill with an acceleration of magnitude 1.2 m/s2. The descent takes 10.0 s. Find the speed of the cyclist at the end of the descent

How long is the car in the air : A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 23o below the horizontal. How long is the car in the air

User Account

All Pages