Compressor selection
Compressor selection
(OP)
For a process that can met with either 4 stages Recp Compressor Vs 6 stages Integrally Geared Cent. Compressor, can any one give me an advise with any drawback for each selection?
Vibration, capacity control, cost........etc?
Vibration, capacity control, cost........etc?
RE: Compressor selection
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"
RE: Compressor selection
RE: Compressor selection
RE: Compressor selection
HamzaNossair,
You have to define the boundary conditions. For example if you are on an offshore platform, deck space is at a premium and energy density is key. Other locations having a small footprint might not matter so much. You have to understand how variable the suction pressure is (a recip wants to stay within +/-5% in absolute unts, a centrifugal wants to stay within +/-2%). How variable is the suction temperature (centrifugals don't do well with changing density). How variable is discharge sink?
For a given application each of these items (and a hundred more) will have an impact on the decision. For a very near thing (which this may be) I often list the boundary conditions in a table, assign a weight to each boundary condition and then a 1-10 score for each technology for each condition. Multiply times the weight and add the results. If there is not a clear winner go with life-cycle costs. If there is a clear winner go with that.
David Simpson, PE
MuleShoe Engineering
"Belief" is the acceptance of an hypotheses in the absence of data.
"Prejudice" is having an opinion not supported by the preponderance of the data.
"Knowledge" is only found through the accumulation and analysis of data.
The plural of anecdote is not "data"