eductors

[scottn4]

Hi,
Can anyone suggest an easy way to calculate eductor performance or a software program/website that might be helpful?

Scott

 

[TD2K]

Graham produces a CD but it would be for their eductors. You might check with your manufacturer if they have something similar.

I don't know of a generalized program for eductors sizing/evaluation but I also don't do much with them.

 

[zdas04]

I had the need to calculate eductor performance several years ago and couldn't find any software on the market that was any help. Several of the vendors had bits and pieces specific to their equipment, but nothing generalized. From the e-Mails I get on the subject at work I would say that the situation has not changed. My solution in 1995 was to go to the literature looking for information on downhole jet pumps (Oil & Gas term). I found a couple of very useful old documents (1960's vintage) that pointed me towards the underlying arithmetic that I was then able to adapt to eductors. It worked and now I have a bunch of them running and have sized many more for use by my company on wells around the world. The best article was in "Oil World" as I recall.

Sorry, but my company won't allow me to post the key equations on this forum, but it wasn't that tough to adapt the jet pump equations.

David

 

[25362]

Try your luck in the internet simply by writing eductors, and there is a good chance that you'll find answers to your query.

 

[PierreSTRAUCH]

the easiest way is to ask an ejector manufacturer for a rough sizing, you will find a list of suppliers under

http://www.vacuum-guide.com

 

[owlscreech]

Pump Handbook, Karassik, et al, McGraw-Hill, has a section devoted to Jet Pumps including eductors.