What are the efficiencies of steam compressors that are available?

[pranj5]

For some purpose, I need a steam compressor that can compress sub atmospheric level steam to atmospheric and above. I want to know what's the efficiency of an average steam compressor available in market. I have got some replies from a few steam compressor manufacturers, but the system they are offering have efficiency less than 10%. Do other steam compressors are inefficient to that level in reality?

 

[Nidum]

Please tell us what this project is all about and what your level of technical knowledge is .

 

[pranj5]

This is about vacuum evaporation of water in an Evaporator and discharge that steam to keep the pressure level inside same. I can't say no more than that at this time. I want to know what are the efficiencies of compressors used in such system.

 

[CWatters]

Sounds like this thread is related to this one...

https://www.physicsforums.com/index.php?posts/3675643

 

[pranj5]

Does that make this irrelevant?

 

[Nidum]

Yes .

 

[pranj5]

That's your own opinion.

 

[CWatters]

I can't think of an application that might use such a compressor but Google found a general guide...

http://www.jmcampbell.com/tip-of-the-month/2015/07/how-to-estimate-compressor-efficiency/

 

[pranj5]

Well, everything said in this page is about gas compression, steam compression is different. Actually, I am looking for the info for a project of my own. It's about compressing very low pressure steam upto atmospheric level and above. I have found just two quotes so far and the efficiency I have found is below 10%. Now, I am sure that they don't have any idea about low pressure steam compression and are making mistakes.