WHAT ARE ALL(MOST USEFUL)CONDITION MONITORING (METHODS,PARAMETERS)FOR RECIPROCATING MACHINES INCLUDING COMPRESSORS,PUMPS,...?

There are a lot of good papers on stage pressures and intercooler pressures along with temperatures for diagnostics. Also monitor via vibration driver to driven fundamentals mostly due to the nature of the beast. But some (depending on type compressor and length of rods) monitor deflection of the rod/s on horizontals.

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Thanks Sam for givving me good guidelines but can anybody give me a list of all methods available in industries?

You can monitor temperature and pressures at all stages. You can perform vibration analyses, ultra-sound testing IR and oil analyses plus electrical circuit testing of electrical devices including the drive. And you can hire a consultant to develop a program.

Aflatouni, I monitor a large amount of reciprocating gas compressors and engines with a dedicated analyzer. This involves capturing dynamic pressure traces from the cylinder ends (crank and head ends) of the compressors. The pressure traces are plotted in both PT and PV format. The systems calculates Indicated Horsepower, volumetric efficiencies, valve losses, etc. We also overlay vibration and ultrasonic traces across the pressure traces to identify the exact sources of leaks, knocks and vibration impulses which may originate from crossheads, connecting rods and crankshaft. On the engine side, vibration and ultrasonic traces are taken from the cylinder heads as well as crankcase. Of course, all said traces, being pressure, vibration and ultrasonics are timed to cylinder events ie: top dead center of said cylinder. Furthermore, the dedicated systems are also capable of displaying and capturing ignition traces from the engine's primary and seconday (unshielded) ignition. If you are interested in further information, contact me by private email info@cmacab.com , I can send you sample traces and reports. We have such a used analyzer system for sale at a fraction of brand new cost if you are interested.