Reciprocating compressors testing

Occasions arise when it is not practical to even run a no-load test on the reciprocating compressor because of certain driver arrangements. While it is recognized as being a compromise, a bar over test can be per-... 

As an alternative, used when the cost of the extra running does not warrant mechanical testing of both rotors, the spare rotor can be fitted to the case and only clearance measurements taken. This is philosophically similar to the reciprocating compressor bar over test. 

The gas testing described will apply to all compressors with casings. For the reciprocating compressors, the gas test, as specified by API 618, is applied to the cylinder. The test is used automatically only when gas... 

Carry out short mnning-in tests with air on reciprocating compressors to check bearings, rods, governors, safety devices and anciliaty equipment Hit V H CHV... 

If a gas leak test is called for, the test can take place shortly after the hydrotest, especially on the reciprocator cylinder or centrifugal or rotary compressors, where the gas is tested without end seals. 

Head coefficient, 156 Head equation, adiabatic, 3 t Head equation, poly tropic, I Head, centrifugal, 156 Head, reciprocating, 58 Heat run test (dry), 413 Helical compressor, 5, 7 adiabatic efficiency, Itil applicalion mnge, 7. ly asymmetric profile, 96 bearings, 116 capacity control, 95 casings, 114 circular profile, 95 cooling, I i 1 discharge temperature (dry), I 17... 

Ail pressure increases when air flows into a system, and decreases when air flows out. Using this principle, here is a simple method to determine air-compressor performance and compressed-air load for plants using reciprocating or positive-displacement compressors (see figure). Accuracy for this test is approximately 10%. 

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