Question

A cylinder-piston device contains a mass of 2.4 kg of liquid-vapor mixture water with 70% titer...

A cylinder-piston device contains a mass of 2.4 kg of liquid-vapor mixture water with 70% titer at 50 bar. The system goes through a process of cooling to constant pressure until the obtaining compressed liquid with 14 ºC of subcooling. Evaluate:

(i) The initial and final temperatures of the process.

(ii) The specific enthalpy at the beginning of the process.

(iii) The change in total volume during the process.

(iv) The amount of heat removed from the system during the process.

(v) Sketch the process on a T-v diagram.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A piston-cylinder device initially contains 75 g of saturated water vapor at 340 kPa . A...
A piston-cylinder device initially contains 75 g of saturated water vapor at 340 kPa . A resistance heater is operated within the cylinder with a current of 0.6 A from a 300 V source until the volume doubles. At the same time a heat loss of 7 kJ occurs. Part A)Determine the final temperature (T2). Part B)Determine the duration of the process. Part C) What-if scenario: What is the final temperature if the piston-cylinder device initially contains saturated liquid water?
A piston cylinder device containing 0.5 kg of water has initial volume of 0.5L. The device...
A piston cylinder device containing 0.5 kg of water has initial volume of 0.5L. The device starts and goes through a Carnot cycle and generates 500.3 kJ work. If the maximum temperature that water will reach is 1.5 times the minimum temperature of water and during heat rejection process, water goes from saturated vapor to saturated liquid phase Find: 1. QH & QL for this cycle 2. TH & TL for this cycle . 3. Maximum and minimum pressures that...
1 kg of water in a piston cylinder arrangement is initially in a saturated liquid state...
1 kg of water in a piston cylinder arrangement is initially in a saturated liquid state at 1 bar. It undergoes expansion at constant pressure due to external heat supply to it, to a final state of saturated vapor. (i) What is the initial temperature of water in C? (a) 93.50 (b) 96.71 (c) 99.63 (d) 111.4 (e) 12.2 (ii) What is the change in enthalpy of water (kJ/kg-K)? (a) 417.46 (b) 2258.0 (c) 2675.5 (d) 2506.1 (iii) What is...
a plunger cylinder device contains 0.8 kg of water at 4 Mpa and 500 ° C,...
a plunger cylinder device contains 0.8 kg of water at 4 Mpa and 500 ° C, it begins to lose heat causing the piston to descend to a set of stops inside the cylinder, at which point saturated steam is obtained through an isobaric process. Cooling continues until the cylinder contains water at 1 atm pressure. The heat transferred during this process is kJ
H3.3 A frictionless piston-cylinder device contains 2 kg of H2O initially at T1 = 300◦C and...
H3.3 A frictionless piston-cylinder device contains 2 kg of H2O initially at T1 = 300◦C and p1 = 5 bar. The device is cooled at constant pressure until the volume is ∀2 = 0.5 m3 . Assume a quasiequillibrium process which occurs slowly with no acceleration as the piston moves. Kinetic and potential energy effects are negligible. Determine: a. work [kJ] during process (indicate magnitude and direction) b. heat transfer [kJ] during process (indicate magnitude and direction)
A piston-cylinder contains 25 g of saturated water vapor and kept at 300 kPa. We add...
A piston-cylinder contains 25 g of saturated water vapor and kept at 300 kPa. We add to the saturated water vapor an amount of electrical work of 7.2 kJ (via a resistance heater). Simultaneously, we lose 3.7 kJ from the water. 1.Show the path on a PV diagram. 2.Determine the change in internal energy, the PV work, and the enthalpy of the system. 3.Determine the final temperature of the system
A piston-cylinder contains 2 kg of refrigerant R-134a at temperature -20 degrees Celsius and a quality...
A piston-cylinder contains 2 kg of refrigerant R-134a at temperature -20 degrees Celsius and a quality of 20% is heated in device until it reaches a saturated mixture with quality 60%. a) Show process on a P-v and P-T diagram b) What is the pressure? c) What is the change in volume? d) What is the change in the internal energy? e) Redo the problem if the piston-cylinder assembly is replaced with a rigid container.
1) A nozzle is a device for increasing the velocity of a steadily flowing stream of...
1) A nozzle is a device for increasing the velocity of a steadily flowing stream of fluid. At the inlet to a certain nozzle the enthalpy of the fluid is 3025 kJ/kg and the velocity is 60 m/s. At the exit from the nozzle the enthalpy is 2790 kJ/kg. The nozzle is horizontal and there is negligible heat loss from it. (i) Find the velocity at the nozzle exit. (ii) If the inlet area is 0.1 m2 and specific volume...