Engineering, 26.03.2022 22:00, zanna12

One kilogram of Refrigerant22 contained in a piston-cylinder assembly undergoes the refrigeration/heat pump cycle consisting of the following processes: Process 1-2: Isobaric (p1=p2=16 bar) compression from state 1 at p1=16 bar and T1=70 oC to saturated liquid (x2=0) at p2=16 bar.

Process 2-3: Constant (specific) volume (υ3 = υ2) cooling from saturated liquid (x2=0.0) at p2= 16 bar down to T3= -10 oC and υ3 = υ2 (to be determined).

Process 3-4: Isothermal expansion (T3=T4= -10 oC) from state 3 at T3= -10 oC and υ3 = υ 2 (to be determined) to saturated vapor (x4=1) at T4= -10 oC.

Process 4-1: Adiabatic compression from saturated vapor (x4=1) at T4= -10 oC to state 1 at p1=16 bar and T1=70 oC.

Complete the following tasks under the assumption of negligible changes in kinetic and potential energy in all processes.

Find all the properties of the four states: T, p, υ, u, h, and x (when applicable).
Sketch the thermodynamic cycle in the T-υ and p-υ diagrams, including the relevant isothermal and isobaric lines inside and outside of the vapor dome.
Calculate the work and heat of all four processes.
Calculate the net total work (Wcycle), the heat entering (Qin) and exiting (Qout) the system, and the coefficient of performance (β and/or γ) of the refrigeration/heat pump cycle.

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, kevin72836

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Answers: 2

continue

Engineering, 04.07.2019 18:10, agpraga23ovv65c

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.

Answers: 2

continue

Engineering, 04.07.2019 18:10, tobyhollingsworth178

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Answers: 2

continue

Engineering, 04.07.2019 18:20, hayleymckee

Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent

Answers: 2

continue

Do you know the correct answer?

One kilogram of Refrigerant22 contained in a piston-cylinder assembly undergoes the refrigeration/he...