A piston–cylinder device contains 0.85 kg of refrigerant-134a at -10°C.
A piston–cylinder device contains 0.85 kg of refrigerant-134a at -10°C. The piston that is free to move has a mass of 60 kg and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now, heat is transferred to refrigerant-134a until the temperature is 20°C. a) Determine the final pressure b) Determine the change in the volume of the cylinder c) Determine the change in the internal energy of the refrigerant-134a. d) Draw the T-v and P-v diagrams of the process
A fluid ids heated reversibly at a constant pressure of 1.05 bar until it has a specific volume of 0.1 m3⁄kg. It is then compressed reversibly according to a law pv = constant to a pressure of 4.2 bar, then allowed to expand reversibly according to a law pv1.7 = constant, and is finally heated at constant volume back to the initial conditions. The work done in the constant pressure process is 515 J, and the mass of fluid present is 0.2kg. Calculate the net work of the cycle and sketch the cycle on a p − v diagram.
For a custom paper on the above topic or any other topic, place your order now!
What Awaits you:
- On-time delivery guarantee
- Masters and PhD-level writers
- Automatic plagiarism check
- 100% Privacy and Confidentiality
- High Quality custom-written papers