Compressor Health ReportTXU Pipeline Service

TXU LSPipeline

Unit Name:Location:

C-UNIT#1North Zulch Compress

Model:Unit Mfr:

6M-2Worthington

Date:Serial No.:

Mechanical Efficiency. "10 95 Marker Correction Angle. deg 135.7 Periods Collected (Pl} 11Overall Efficiency. "10 85 Stroke. (ins) 6.000

Atmospheric Pressure. psi a 14.7 Speed, RPM 719 Specific Gravity 0.554

Load Step 1 1st Stage Suction, psi 290.0 1st Stage Discharge. psi 780.0

Clr Rod ConRod Pressure Temp. Calc. Indicated Suction Disch. Dis T RodCyl Stg Set Bore Diam Length Ps Pd Ts Td Compo Capacity Power Loss Loss Flow Delta Load SVE DVE

End ("10) (ins) (ins) (ins) (psi g) Ratio (mmscfd) (ihp) (ihp) (ihPI Balance (F) ("10) ("10) ("10)

1H 1 10 7.500 N/A 16.250 292 292 86F 218F Unload -0.2 4C

1C 1 10 7.500 2.500 16.250 304 820 86F 218F 2.62 2.22 110.7 0.2 1.1 1.00 5 38T 74 35

2H 1 10 7.500 N/A 16.250 297 302 86F 211F Unload 5.6 5C

2C 1 10 7.500 2.500 16.250 315 822 86F 211F 2.54 2.31 113.1 3.6 0.7 1.01 1 38T 75 36

Notes: 1. Rod loading is based on maximum differential pressure across the rings. C - Compression, T· Tension.

Forces due to inertia are not accounted for in this table.

2. Flow Balance = capacity from suction VE I capacity from discharge VE.

3. If the flow balance is much greater than 1.0 suspect leaking suction valves or rings.

If the flow balance is much less than 1.0 suspect leaking discharge valves or rings.

4. Discharge Temp. Delta = actual discharge temp - theoretical.

5. If Suction or Discharge Temperatures are not found, some calculations may not be available as indicated by a "-".

6. Gas power = Total indicated power for all cylinders I Mechanical Efficiency.

7. Compressor total brake power = Gas power + Auxiliary brake power' RPM I Rated RPM.

8. Derated power is obtained by derating the rated power to actual run speed.

9. Compressor efficiency is the total indicated power· suction and discharge losses

as a percentage ofthe total indicated power.

10. If nozzle pressures are recorded, suction and dischare losses for each end are valve and passage losses only.

Otherwise, they are calculated from the terminal pressures and include the pulsation losses.

11. Marker Type: Encoder (ENC) and Trap Type: 9260.

12. Channel Resonance Correction (CRC) applied: None13. Corrected VE applied, PS and PO values Corrected: None

Total Indicated Power. (ihPI 229 @ 719 RPM Rated Power. (bhp) 650 @ 900 RPM

Gas Power, (ghpl 241 @ 719 RPM Derated Power. (bhp) 520 @ 719 RPM

Auxiliary Power, (bhp) 19 @ 900 RPM Percent Torque Load, "10 49 "10

Compressor Total Power. (bhp) 256 @ 719 RPM Compressor Efficiency, "10 98 "10

Analyst Signature: 21512009 2:54:48 PM