Natural Gas Compressor Selection 1

[Jmoore1]

Im attempting to estimate the costs for a natural gas compressor station on a 42 inch line.

So far Im looking at a GE or Rolls Royce 211 Driver (around 15-25 MW) and I have to select a compressor (currently looking at Dresser Rand Datum compressors.

The inlet pressure is 6.5 MPA, and the outlet pressure is 10.2 MPA, inlet temp is estimated at 15 C, and outlet at 35C ,and the flow rate is 22000 acfm.

How do I go about determining power requirements, number of stages, compressor type, and driver selection for each compressor?

Additionally, I need to estimate total costs of the compressor station, and dont have a basis to work off of.....any suggestions?

Appreciate any help!

 

[zdas04]

Seems like a pretty basic question for someone charged with purchasing a $15 million piece of kit. Dresser would be delighted to run the calcs for you and walk you step by step through them. For that much money they will generally jump through whatever hoop you place in their path.

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.

 

[rQuestionEngineering]

You can carry out initial estimation from this web site.

http://turbocalc.dresser-rand.com/

 

[tgmcg]

Competitively bid the job, e.g. the GE LM2500 driving a GE pipeline compressor

In another couple of years the Solar Titan 250 may be proven enough for critical application.