The better way

This eductor calculator will help you determine the required. Miller Plastic Products. The eductor design calculation application below will give the. Ejectors and jet pumps: computer program for design and performance for steam/gas flow. Summary; Document; Software. Abstract: ESDU 94046.

'Before including a compressor or pump in your process design, would you fill in your request, send it to a supplier and then cool you heels waiting for a reply? So don't do this for an ejector.'

Avoid the time lost, develop your own solution

Feedback from users:

'Your software is very well designed and easy to use with plenty of great info.'

'Thank you. I found the program very useful indeed!'

'Thank you for all the help!'

'According to program steam flow and sizing seems perfect!'

'I was able to prepare a very successful solution!

EZEJECTOR is a computer model for gas ejector and steam ejector design that has been developed based on a unique approach using fundamental principles.

The ejector computer model includes the following:

Thermodynamic models,Continuity equations
Equations for geometric arrangement
Efficiencies of each step within the ejector based on correlations

The inputs to the program are:

Motive gas flow rate, pressure, temperature and properties (molecular weight, Cp/Cv)
Entrained gas properties (molecular weight, Cp/Cv), pressure and temperature
The ratio of entrained gas flow rate to motive gas flow rate (entrainment mass ratio)

The model has been tested extensively and is easy to use. Results compare favourably with actual ejector installations, see graph to the left.

The application below will give the required inlet pressure and water flow needed with each size eductor at various discharge pressures. Total flow is sum of feed and supply required. Make sure that flow and pressure are available under flowing conditions.

1/2' Eductor

Discharge into 5 psi

Pressure Required:	{{half_5_p \| number : 0}} psi
Supply Required:	{{half_5_s \| number : 1}} gpm

Discharge into 10 psi

Pressure Required:	{{half_10_p \| number : 0}} psi
Supply Required:	{{half_10_s \| number : 1}} gpm

Discharge into 15 psi

Pressure Required:	{{half_15_p \| number : 0}} psi
Supply Required:	{{half_15_s \| number : 1}} gpm

1' Eductor

Discharge into 5 psi

Pressure Required:	{{one_5_p \| number : 0}} psi
Supply Required:	{{one_5_s \| number : 1}} gpm

Discharge into 10 psi

Pressure Required:	{{one_10_p \| number : 0}} psi
Supply Required:	{{one_10_s \| number : 1}} gpm

Discharge into 15 psi

Pressure Required:	{{one_15_p \| number : 0}} psi
Supply Required:	{{one_15_s \| number : 1}} gpm

1-1/2' Eductor

Discharge into 5 psi

Pressure Required:	{{onehalf_5_p \| number : 0}} psi
Supply Required:	{{onehalf_5_s \| number : 1}} gpm

Discharge into 10 psi

Pressure Required:	{{onehalf_10_p \| number : 0}} psi
Supply Required:	{{onehalf_10_s \| number : 1}} gpm

Discharge into 15 psi

Pressure Required:	{{onehalf_15_p \| number : 0}} psi
Supply Required:	{{onehalf_15_s \| number : 1}} gpm

2' Eductor

Discharge into 5 psi

Pressure Required:	{{two_5_p \| number : 0}} psi
Supply Required:	{{two_5_s \| number : 1}} gpm

Discharge into 10 psi

Pressure Required:	{{two_10_p \| number : 0}} psi
Supply Required:	{{two_10_s \| number : 1}} gpm

Discharge into 15 psi

Pressure Required:	{{two_15_p \| number : 0}} psi
Supply Required:	{{two_15_s \| number : 1}} gpm

2-1/2' Eductor

Discharge into 5 psi

Pressure Required:	{{twohalf_5_p \| number : 0}} psi
Supply Required:	{{twohalf_5_s \| number : 1}} gpm

Discharge into 10 psi

Ejector Calculation

Pressure Required:	{{twohalf_10_p \| number : 0}} psi
Supply Required:	{{twohalf_10_s \| number : 1}} gpm

Discharge into 15 psi

Pump Design Calculation

Pressure Required:	{{twohalf_15_p \| number : 0}} psi
Supply Required:	{{twohalf_15_s \| number : 1}} gpm

3' Eductor

Discharge into 5 psi

Pressure Required:	{{three_5_p \| number : 0}} psi
Supply Required:	{{three_5_s \| number : 1}} gpm

Discharge into 10 psi

Pressure Required:	{{three_10_p \| number : 0}} psi
Supply Required:	{{three_10_s \| number : 1}} gpm

Ejector Design

Discharge into 15 psi

Ejector Design Calculation Software

Pressure Required:	{{three_15_p \| number : 0}} psi
Supply Required:	{{three_15_s \| number : 1}} gpm