Page 208 - Compression Machinery for Oil and Gas

4
3.5
3
P /P s 2.5
2
1.5
1
0.5
0 45 90 135 180 225 270 315 360
Crank angle (degrees)

Mass flow: 2.30e–03 kg/s, Power: 33.1 kW, PV Eff: 97.2%
4
3.5
3
P/P s 2.5
2
1.5
1
0.5
1 1.5 2 2.5 3 3.5 4 4.5 5
V / V 0
FIG. 5.17 Baseline compressor performance for 200rpm. (Courtesy of SwRI.)

120
Suction
100
Discharge
Valve position (%) 60
80
40
20
0
–20
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
Time (s)
0.05
Suction
0.04
Discharge
Mass flow (kg/s) 0.03
0.02
0.01
0

–0.01
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
Time (s)
FIG. 5.18 Baseline valve performance for 200rpm. (Courtesy of SwRI.)