Consider Case #2 from Table 1: Table 1: Case numbers and their respective Pg and V2 Initial pressure (P1) Volume in state 2 (V2) Case # (kPa) (m³) 1 900 0.306 2 1000 0.270 1200 0.216 4 1400 0.186 5 1000 0.234 a) Find the temperature when the piston just touched the stopper (T2) in °C. b) Find the final pressure (P3) in kPa. c) Find the total heat transfer from state 1 to state 3. d) Draw a T-v in reference to the saturation line showing the constant pressure lines and all the states.

Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter1: Heat, Temperature, And Pressure
Section: Chapter Questions
Problem 6RQ: One British thermal unit will raise the temperature of _____ 1b of water _____F.
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Consider Case #2 from Table 1:
Table 1: Case numbers and their respective P1 and V2
Initial pressure (P1)
Volume in state 2 (V2)
Case #
(kPa)
(m)
1
900
0.306
1000
0.270
1200
0.216
4
1400
0.186
5
1000
0.234
a) Find the temperature when the piston just touched the stopper (T2) in °C.
b) Find the final pressure (P3) in kPa.
c) Find the total heat transfer from state 1 to state 3.
d)
Draw a T-v in reference to the saturation line showing the constant pressure lines and all the
states.
Transcribed Image Text:Consider Case #2 from Table 1: Table 1: Case numbers and their respective P1 and V2 Initial pressure (P1) Volume in state 2 (V2) Case # (kPa) (m) 1 900 0.306 1000 0.270 1200 0.216 4 1400 0.186 5 1000 0.234 a) Find the temperature when the piston just touched the stopper (T2) in °C. b) Find the final pressure (P3) in kPa. c) Find the total heat transfer from state 1 to state 3. d) Draw a T-v in reference to the saturation line showing the constant pressure lines and all the states.
A closed piston-cylinder assembly as shown in Figure 1 filled with 12 kg of Refrigerant-22 has an
initial temperature of T1 = (10X14) °C and pressure P1. The refrigerant is brought to a state where
its temperature reaches 0°C through a two-step process by removing heat into the surrounding.
The piston moves freely without friction keeping the pressure in the piston equal to P1 until the
piston hits the stopper. Both kinetic and potential differences of the refrigerant are neglected.
Piston-
Piston-
Piston
State 1
State 2
State 3
Transcribed Image Text:A closed piston-cylinder assembly as shown in Figure 1 filled with 12 kg of Refrigerant-22 has an initial temperature of T1 = (10X14) °C and pressure P1. The refrigerant is brought to a state where its temperature reaches 0°C through a two-step process by removing heat into the surrounding. The piston moves freely without friction keeping the pressure in the piston equal to P1 until the piston hits the stopper. Both kinetic and potential differences of the refrigerant are neglected. Piston- Piston- Piston State 1 State 2 State 3
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