Cost of compressed air?
Cost of compressed air?
(OP)
Does anyone have either a figure for kWhr/scfm/degF or $/scfm/degF for compressed air?
(Don't bother converting units - I can take care of that.)
Pressure this is based on would obviously be useful too.
Thanks,
Gary Garnier
Raytek Corp.
(Don't bother converting units - I can take care of that.)
Pressure this is based on would obviously be useful too.
Thanks,
Gary Garnier
Raytek Corp.





RE: Cost of compressed air?
Two specific examples in my plant are a 760 CFM screw compressor that requires 165 HP, and a 1400 CFM 3-stage centrifugal compressor that requires 350 HP. Both of these are values at full load. The screw compressor will be less efficient at part load, while the centrifugal maintains a high efficiency at part load. However, the screw machine costs about $50K, while the centrifugal costs about $135K.
Small compressors such as would be used at a service station will be significantly less efficient.
If you want to examine the problem in depth, I would suggest contacting some of the major manufacturers such as Ingersoll-Rand, Gardner-Denver, Kaiser, Atlas-Copco, Elliott, or Cooper Turbocompressor (JOY).
RE: Cost of compressed air?
the cost of compressed air. There are more costs involved than
producing the compressed air and drying it.