Pulsation + Mechanical Analysis

S – Standard features
O – Options
X – Many suppliers do not include this feature due to software and other limitations (some limited exceptions apply)

API 618 lists the bare minimum requirements. See what’s included in BETA’s DA2 Study
	API 618(5th Ed.)	Beta Machinery Analysis	Other Companies
Assess Pressure Pulsations & Unbalanced Shaking Forces		S	S
Recommend Pulsation Solution		S	S
Meet Static & Dynamic Pressure Drop Guideline		S	X
Pipe Restraint (Mechanical Review)		S	S
Assess meter error (due to pulsation effects)		S	X
Assess impact of Pressure/Volume Curve due to Pulsation effects (CPE)		S	X
Assess all operating conditions	note1	S	X
Detailed performance report for compressor (at all operating conditions)		S	X
Time Domain software used to accurately calculate pulsations, and improved bottle design		S	X
Evaluation of internal bottle forces and stresses (baffles)		S	X
Rapid bottle sizing program (fast turnaround to meet fabrication schedule)		S	X
Optimize compressor design (to improve performance or reduce capital costs)		O	X

Note 1. API 618 does not specify how to conduct study, but instead defines the appropriate guidelines to be met. Customers are recommended to define all likely compressor operating conditions (e.g. define the complete operating envelope, rather than just design points or extreme operating points).