A closed, rigid tank contains a two-phase liquidvapor mixture of Refrigerant 22 initially at 2208C with a quality of 50.36%. Energy transfer by heat into the tank occurs until the refrigerant is at a final pressure of 6 bar. Determine the final temperature, in 8C. If the final state is in the superheated vapor region, at what temperature, in 8C, does the tank contain only saturated vapor?

Problem 3.26

A closed, rigid tank contains a two-phase liquid vapor mixture of Refrigerant 22 initially at -20°C with a quality of 50.36%. Energy transfer by heat into the tank occurs until the refrigerant is at a final pressure of 6 bar. Determine the final temperature, in °C. If the final state is in the superheated vapor region, at what temperature, in °C, does the tank contain only saturated vapor?

Step by step solution

Step 1 of 3

Rigid tank which mean that the process is a constant specific volume process

state(1)

- Two phase liquid-vapor mixture of refrigerant 22.
- The temperature
- The quality

State (2)

- The pressure

Assume system is in equilibrium

state(1)

From table A-7

Then the volume is defined by