For over 20 years, IAC SIM ENGINEERING has offered simulation and measurement studies for reciprocating compressor piping systems. These acoustic studies comply with the requirements laid down in the standard API 618. They serve to forecast risks of rupture and optimise the compressors' performance, thus making the systems' stronger and more economical. Upon the client's request, we step in to carry out measurements and characterise phenomena which could lead to:
- excessive vibrations and piping ruptures
- deterioration or loosening in the supporting structure. Our aim is to provide solutions or research means which shall resolve these problems and ensure the installations operate reliably.
Pulsation and risks of rupture:
Pulsations are generated by the movement of the compressor's piston. They are either amplified or dampened depending on the piping system's acoustic response. Periodic pressure produces unbalanced forces. Such forces, applied to a flexible system, lead to vibration levels. The risks of rupture depend on exposure times and the amplitude of the cyclic stress generated by the vibrations. Two study techniques allow for the pulsations and vibrations to be tested: acoustic and mechanical. The optimisation solutions used are:
- Dampen pulsations through acoustic filters
- Create localised dampening through pressure loss
- Avoid crossovers with acoustic resonance
- Modify the installation's mechanical set-up
Acoustic study and mechanics according to the standard API 618:
- Anti-pulsation bottles (design and verification)
- Acoustic study (passive line response, pulsation levels, unbalanced forces)
- Compressor performance study (pressure loss, power and rate deflection)
- Mechanical study (flexibility, natural and deformed frequencies in modes, stress, forces, and dynamic displacements)
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