Chapter 5, Problem 5.58P

A refrigerator cycle uses refrigerant R-134a and operates between a low-side pressure of 1.5 Bar and high side of 10 Bar. The power input to the compressor 1.88 Kw. find the refrigerant mass flow rate, condensing heat load, and COP of this machine

For a pressure ratio of r, specific heat ratio of y. the thermal efficiency of Brayton cycle is given by nen-1 Nen-1

A reversed carnot cycle that operates between -2 degrees celsius and 50 degrees celsius needs 45 KW compressor power. Find the tons of refrigeration.

A Brayton cycle has an initial temperature 300C. If compression ratio of compressor is8, find the compressor work in KJ/kg.

In a steam turbine steam at 20 bar, 360°C is expanded to 0.08 bar. It then enters a condenser, where it is condensed to saturated liquid water. The pump feeds back the water into the boiler. Assume ideal processes, find per kg of steam the net work and cycle efficiency.

A heat engine operates between a cold reservoir at temperature T, = 300 K and a hot reservoir at Temperature T,. It takes 200 J %3D of heat from the hot reservoir and deliver 120 Jof heat to the cold reservoir in a cycle. What will be the efficiency of the engine?

If the Mean Effective Pressure (MEP) is the ratio of the net work and the volume displaced, find the MEP per kg of air in an Otto Cycle with initial conditions of 0.1 MPa, 306K; rk is ten and max temp is 3021R.

May you please explain each steps.   Thank you

Two Carnot engines work in series between source and sink temperature of 04 1200K and 300K. Find out the intermediate temperature if 1) Both engines having same efficiency 2) Both engines develop equal power.