Need help - Compressor preliminary sizing 1

[sheiko]

Hello all,

First, i am a french junior engineer working for a "small" engineering company involved in conceptual, basic, detailed studies company.

I am looking for Excel spreadsheets for compressors (common types) preliminary sizing, and also relevant articles on the subject that you would know from CHE, CEP or HP namely.

So, would you be so kind to let me know if possible?

Of course i am trying to develop mine but i think it is maybe a good idea to inspire from work done by other people worldwide and namely by experienced engineers.

Thanking you all in advance

Wishing you a nice day

"We don't believe things because they are true; Things are true because we believe them."
"Small people talk about others, average people talk about things, smart people talk about ideas and legends never talk."

 

[pmover]

as far as spreadsheets, i believe that contacting the compressor mfg's directly will yield better results. some mfg's have software available to be downloaded from internet.

as far as articles, again, this information is available via the internet or directly from compressor mfg's. there are textbooks regarding compressors written by some saavy and seasoned engineers available available via internet.

a search via google will yield results.

hope this helps.

good luck!
-pmover

 

[zdas04]

To pile onto pmover's post--I think that writing a spreadsheed for compressor sizing is a waste of time. If I have an application that clearly calls for a recip, then I run it in Ariel or Ajax. If it could be a flooded screw I run it in GD's Rotosize, Frick's CoolWare, or Sullair's SulGas.

That way I never have to wonder which of the simplifying assumptions that went into the "generalized" spreadsheet are going to bite me on the butt. If I tell a client that their application calls for "a JGK/4 set up as a 2 stage with XX cylinder sizes and probably should be run by a Cat 3516 or Waukesha 7042" then they have a good starting point. If I say "it looks like 800 hp and probably should be 2 stages" then they don't have anything worth having.

David

 

[Feric]

Hi there:

Here is a free online calculator that deals with general compression calculations:

http://engware.i-dentity.com/calc4.htm

Thanks,

Gordan

http://engware.i-dentity.com

 

[sheiko]

Any Excel spreadsheets and reference articles (CHE, CEP)?

"We don't believe things because they are true, things are true because we believe them."
"Small people talk about others, average people talk about things, smart people talk about ideas and legends never talk."

 

[Feric]

Hi there:

OK, here is a free MS Excel that deals with general compression calculations:

http://engware.i-dentity.com/modeling10.xls

Thanks,

Gordan

http://engware.i-dentity.com

 

[sheiko]

thank you. It will be a good stating point.

"We don't believe things because they are true, things are true because we believe them."
"Small people talk about others, average people talk about things, smart people talk about ideas and legends never talk."

 

[Feric]

Sheiko:

No problem.

Thanks,

Gordan

http://engware.i-dentity.com

 

[dcasto]

Here is a BASIC program I wrote for reciprocating.

 

[milltir]

I'd encourage you to develop your own rather than trying to take somebody elses spreadsheets if only to develop your understanding of the theory (like doing a hand calculation). They can be quite useful for studies when you can quickly see the effect of say changing the suction temperature. I will also use vendor software, and if the fluid is air or a fairly standard natural gas you are usually OK, but on several occasions the gas compositions I have tried to enter have been outwith the capabilities of the program.

 

[Vegaskid]

You may want to just write a program to calc Head, #stages, HP, etc. requirments. Based on your results you can then take a look at GPSA Handbook and do some preliminary selection.

 

[sheiko]

exactly

"We don't believe things because they are true, things are true because we believe them."
"Small people talk about others, average people talk about things, smart people talk about ideas and legends never talk."