Air in a piston-cylinder assembly undergoes a Carnot power cycle. For the process numbers used in this problem refer to Figure 5.13 in the textbook and the figure below for a T-s diagram. The isothermal expansion and compression occur at 840 K and 295 K respectively. The pressures at the beginning and the end of the cycle are p1 = 400 kPa and p4 = 100 kPa, respectively. Assuming the ideal gas model for both constant and variable heat capacity, cp = 1.005 kJ/kg·K and k = 1.40 determine:   a) the pressures p2 and p3.   b) the heat transfer and work for each process.   c) the thermal effici ency.

I need help with the diagnrams for this thermo practice problem  2 kg of air in a piston cylinder initially at P1=101 kPa, T1= 300 K undergoes a cycle made up of three processes: 1-2 Isothermal compression until the volume is (1/15) of its original value.2-3 Constant Pressure heating3-1 Isentropic Expansion back to the initial state Assume air is an ideal gas with constant specific heats with the following values: Cpo=1.027kJ/kgK; Cvo= 0.740 kJ/kgK; R=0.287 kJ/kgK; ɣ=1.388 Sketch this cycle on a P-v diagram and on a T-s diagram, clearly indicating all state points and the three processes.

Explain the heat transferred from a furnace (Q) to convert the boiler feed water at 25 ° C into superheated steam at 17 bar and 250 ° C.

In an air-standard Brayton cycle the air enters the compressor at 0.1 MPa and 15°C. The pressure leaving the compressor is 1.0 MPa, and the maximum temperature in the cycle is 1100°C. Determine the pressure and temperature at each point in the cycle and the compressor work, turbine work, and cycle efficiency. For each of the control volumes analyzed, the model is ideal gas with constant specific heat, at 300 K, and each process is steady state with no kinetic or potential energy changes