Pulsation & Vibration theory for Reciprocating Compressors

By: Dynaflow Research Group
On-Demand

Pulsation & Vibration theory for Reciprocating Compressors

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About the course

This course teaches you fundamental knowledge and understanding of pressure pulsations in piping due to reciprocating compressors in the context of API 618 analyses.

By means of several real-life case studies you are thought the details of how pulsations are caused by compressors and what their consequences can be. Associated assessment methods such as pulsation analysis using software are discussed by the instructor as well as conformity checks for the pulsations and resulting vibrations. Possible mitigation measures and good design practices are provided.

Discussions and analyses will be illustrated using the software BOSpulse. No knowledge of this software is required.

On-Demand
2hr 30 mins Content
2.5 PDH Credits
English
SPC128

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Dynaflow Research Group

Specialised Engineering firm

Learning Outcomes

After this course, you...
• understand what pressure pulsations due to reciprocating compressors are and what consequences they can have,
• are familiar with calculation methods for analyzing pressure pulsations,
• know the basics of performing API 618 pulsation analysis,
• have an understanding of assessing associated vibrations,
• know what mitigation measures are available and when they are applicable,
• have seen several real-life cases (2 in much detail).

Who should attend this course

• Anyone working piping systems connected to reciprocating compressors,
• Those involved with piping systems prone to vibrations,
• Engineers working with the API 618.

Prerequisites

Basic understanding of piping systems.
Discussions and analyses will be illustrated using the software BOSpulse.
No knowledge of this software is required.

Program & Details

Pulsation & Vibration Theory for Reciprocating Compressors

Pressure pulsations Foundations - Part 1
Pressure pulsations Foundations - Part 2
Shaking forces due to pulsations
Periodic excitations in piping systems
Pulsation control in piping systems
Acoustic resonance in piping systems
Acoustic resonance typical problematic modes
Orifice plates to change modes
General considerations for piping systems
Recap of Module 1
Field Case - Compressor Station

Case Introduction
Operating modes
Result discussion
Damper design
Understanding Mechanical Vibrations due to Pulsation

Vibration risks in piping systems
Types of vibrations in piping systems
Mechanical excitation due excitation source
Single DOF systems Degree Of Freedom
Mechanical response to pressure pulsations
Mechanical eigenmodes in piping systems
Evaluating vibration in piping systems
Mechanical response versus acoustic response
Field Case - Pipe Vibrations

Case Introduction
Compressor harmonics
Mechanical resonance
System modifications
Conclusions