Page 48 - Subyek Teknik Mesin - Forsthoffers Best Practice Handbook for Rotating Machinery by William E Forsthoffer

Project Best Practices Best Practice 1 .14

The agenda is issued for review two months prior to test Must be per API and project requirements
It incorporates agreed VCM scope Confirm that the test agenda is followed
Compressor performance test conditions are per ASME PTC–10 Confirm all components are installed
requirements Confirm that all required instruments are installed
A sample of test calculations and report format is included Monitor the progress of the test – look for leaks, etc
Vendor concurs with all end user and contractor comments prior Do not accept until all requirements are met
to test

Fig 1.14.7 Auxiliary system test – key facts
Fig 1.14.3 Shop test agenda review – key facts
the test set-up and the procedure prior to the test. As a result, I
have always been a proponent of a pre-test meeting. Per ASME PTC-10 requirements
Is it always required? I think it is, but the detail and timing of Reconfirm test speed is per PTC-10
the meeting depends on certain factors, noted in Figure 1.14.4. Confirm all instruments are calibrated and installed
Confirm test gas purity
Agree that conditions are stable prior to each test point
Confirm vendor's calculations for each test point
If the equipment is prototype Do not accept until all test requirements are met
If the equipment is complex
If a full load test is required
If the test facility is new Fig 1.14.8 Compressor performance test – key facts

Fig 1.14.4 When is a pre-test meeting required?
Confirm performance results, corrected to field conditions
If it is decided to conduct a pre-test meeting, the key facts are Confirm mechanical test acceptance
noted in Figure 1.14.5. Confirm auxiliary system test acceptance
Inspect components and confirm acceptance
Agree to any corrective action in writing
Accept or reject test – any corrective action requires a retest!
Conduct the meeting prior to the test day
Send the agenda to the vendor well in advance
A typical agenda outline: Fig 1.14.9 Post test – key facts
Confirm test agenda requirements
Confirm all test parameter acceptance limits
Confirm instrument calibration
Review test set up or concept drawing Immediately provide details to the project team
Review data reduction methods Confirm if field conditions can handle the abnormality
Confirm all test program agreements Determine if the `as tested' machine will meet all reliability
requirements
If the decision is to reject, inform the vendor and detail the
Fig 1.14.5 Pre-test meeting – key facts reasons
Do not accept unrealistic delivery delays
Figures 1.14.6 to 1.14.8 define recommended test activity for
the mechanical, auxiliary equipment and performance shop
tests respectively. Fig 1.14.10 Rejection test action
Finally, do not forget the importance of test report re-
quirements. The test report is a most important document that
Per API and project requirements represents the ‘baseline performance of the unit’, and will be
Confirm all components are installed
Confirm all accessories are installed a benchmark for field operation acceptability. Test report key
Monitor progress of test, look for leaks, etc. facts are noted in Figure 1.14.11.
Do not accept test until all requirements are met

The shop test is the field baseline!
Fig 1.14.6 Mechanical test – key facts
The test report must be detailed and complete
Review the preliminary contents of the report before leaving the
At the conclusion of all test activities, there is still important test floor
work to be performed. These items are defined in Figure 1.14.9. Obtain the actual test results
What happens if the test is not successful? Approximately When the final report is received, check the results obtained at
50% of the tests that I have either run, or participated in, over test against the final report
my career have not been successful with respect to one com- Immediately contact the vendor if there are any differences
ponent or more not meeting test requirements. Possible re-
jection test action is noted in Figure 1.14.10. Fig 1.14.11 Test report – key facts

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