Chapter 8, Problem 8.5P

A fluid is heated reversibly at a constant pressure of 1.05 bar until it has a specific volume of 0.1 m'/kg. It is then compressed reversibly according to a law pu = constant to a pressure of 4.2 bar, then allowed to expand reversibly according to a law pel.- constant, and is finally heated at constant volume back to the initial conditions. The work done in the constant pressure process is -515 N m, and the mass of fluid present is 0.2 kg. Calculate the net work of the cycle and sketch the cycle on a p-v diagram.

Neglecting KE and PE, calculate the heat added. A gas undergoes a thermodynamics cycle consisting of three processes beginning at an initial state where P1=100kPa and V1=1.5m3. The processes are as follows: Process 1-2: compression with PV =C to P2=200 kPa Process 2-3 :W23=0, Q23=-150 kJ and  Process 3-1: W31=+50 kJ a. 300kJ b. 100kJ c. 50kJ d. 200kJ

An insulated mixing chamber receives 2 kg/skg/s R-134a at 1 MPa, 100 ∘C in a line (state-3). Another line brings 1 kg/s of R-134a as saturated liquid at 70 ∘C (state-1), which is throttled to a pressure of 1 MPa (state-2) before it enters the mixing chamber. At the exit (state-4), the pressure is 1 MPa. a)Determine the entropy generated by the mixing chamber, (S˙gen,mixing). b)Determine the entropy generated in the system’s universe (S˙gen,univ).

Between 1-2: Isothermal compression (1st process)Between 2-3: Isometric compression (2nd process)Between 3-1: Adiabatic expansion (3rd process) A cyclic process through which N2 gas, which is considered to be the ideal behaving, is treated, has been described above. In case 1, the volume of gas is 9.6 m3, pressure 200 kPa. Since the pressure in state 3 is 750 kPa, find the work done in the whole process in kJ. Draw the P-V diagram for the cycle.

A fluid enters an apparatus at 480 ft/s, initially the pressureof the fluid is 120 psia, the specific volume of 5ft3/lb andthe internal energy is 383 BTU/lb. The fluid leaves theapparatus at 25psia, specific volume of 18 ft3/lb, an exitvelocity of 1200 ft/s and internal energy of 120 BTU/lb. Theheat radiation loss is 10 BTU/lb. Determine work steadyflow, WSF

pls answer the given thanks

A compressor compresses the gas in a cylinder at a pressure of 2 Bar, Gas expands from 0.4 m to 0.5 m while pressure is constant. Find the work done of the compressor (a) and Find the sensible heat (b). removed to reduce the temperature of 5 kg of water from 20°C to 5°C, Specific heat capacity is 4.187 kJ/kg K. on Gp

Find the minimum work done per Kg of air in a cycle according to the following process: a. isothermal expansion from state 1 to state 2 b. Constant volume compression form state 2 to state 3 c. Constant pressure compression from state 3 to the initial state Data: P1= 350KPa T3= 1650⁰C V1 = 1 m³/Kg represent the work in a P-V diagram

Derive the formula for the nonflow work in terms of P1,P2, V1 and V2 only for a process involving ideal gas as working fluid and described by PV^n which is constant.