API 618 Design Approach Selector

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API 618 Design Approach Selector

Find the Right Design Approach For Your Project

API 618 Design Approach Selector

English Metric

Absolute Discharge Pressure	Rated Power per Cylinder
Absolute Discharge Pressure	hp/cyl < 75	75 < hp/cyl < 300	300 < hp/cyl
P < 500 psi
500 psi < P < 1000 psi
1000 psi < P < 3000 psi
3000 psi < P < 5000 psi

your Design approach number is

YOUR PROCESS REQUIRES A DESIGN APPROACH 1
Empirical Pulsation Suppression Device Sizing

Per API 618 section 7.9.4.2.1 and based on the information provided, your process requires a Design Approach 1. A design approach 1 uses empirical data to preliminary size suppression devices. Click here for more information. Continue below to size your pulsation suppression device(s) using our API 618 Bottle Size calculator.

YOUR PROCESS REQUIRES A DESIGN APPROACH 2
Acoustic Simulation and Piping Restraint Analysis

Per API 618 section 7.9.4.2.1 and based on the information provided, your process requires a Design Approach 2. A design approach 2 uses acoustic analysis to size suppression devices and orifice plates. Click here for more information. Continue below to preliminarily size your pulsation suppression device(s) using our API 618 Bottle Size calculator.

YOUR PROCESS REQUIRES A DESIGN APPROACH 3
Acoustic Simulation and Mechanical Analysis

Per API 618 section 7.9.4.2.1 and based on the information provided, your process requires a Design Approach 3. A design approach 3 uses acoustic analysis to size suppression devices and orifice plates, followed by a mechanical analysis to determine natural frequencies and check for resonance. Click here for more information. Continue below to preliminarily size your pulsation suppression device(s) using our API 618 Bottle Size calculator.

1 STEP ONE - Piston Displacement (PD):

Please fill in all the fields

Is/Are the cylinder(s) Single Acting Double Acting

Number of Cylinders

Cylinder Bore Diameter (inches)

Stroke Length (inches)

Rod Diameter (inches)

2 STEP TWO - Isentropic Exponent : k

Please fill in all the fields

Isentropic Exponent (k) (for an approximate value Natural Gas value use k = 1.27)

- OR -

C_p (Specific heat at constant pressure)

C_v (Specific heat at constant volume)

3 STEP THREE - Compression Ratio : r

Please fill in all the fields

P_s (Absolute Suction Pressure - (psia))

P_d (Absolute Discharge Pressure - (psia))

4 STEP FOUR - Suction Temperature : T_s

T_s (°F)

5 STEP FIVE - Molecular Mass : M

Please fill in all the fields

Molecular Mass

- OR -

Specific Gravity

PD - Piston Displacement FT³ M³

V_s - Suction Bottle Volume FT³ M³

V_d - Discharge Bottle Volume FT³ M³

6 STEP SIX - Contact Info

Name Company Email Phone Comments

Mechanical Analysis
Acoustic/Pulsation Analysis
Torsional Analysis
Pipe Stress Analysis
Skid Dynamic and Static FEA (Finite Element Analysis)
API 618 Design Approach Selector
API 618 Bottle Size Calculator

Contact Information

Compression Dynamics Consulting, LLC.
6130 S Maplewood Ave, Suite C
Tulsa, OK 74136

918-710-3664

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www.cdconsulting.com

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