A pistoncylinder device contains 560 grams of R134a and 60 k

A piston-cylinder device contains 560 grams of R134a and 60 kPa and -20 degrees C. The R134a is heated until its temperature reaches 100 degrees C. Determine the total change in volume.

Solution

From property table of R134a

At 60kpa Tsat= -37C

At -20c it is in superheated state

V1= 0.33608m3/kg

V2=0.5041m3/kg

Change in volume = m*(v2-v1)= 0.560*(0.5041-0.33608)

=0.09409 m3