Cost of high capacity compressors ($/kW)

AI Thread Summary
The discussion focuses on the cost of high-capacity compressors, specifically seeking information on 4 MW compressors like GE axial models used in petroleum and power applications. It notes that as power increases, the cost per kW decreases, but available online resources do not provide pricing for such high capacities. Participants suggest that equipment of this size typically requires direct quotes from vendors, as they are not listed in catalogs. Additionally, there is a mention that efficiency gains may plateau at higher power levels due to thermodynamic limits. Accurate pricing and efficiency insights for large compressors necessitate vendor consultations.
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Hello -

I was looking at costs of compressors online and could find a couple of links that provided me $ for the power I was looking at. As the power increases, $/kW decreased. The range of kW that these websites could give me cost for was well below what I was looking at.
Can someone help me with the cost of a compressor with a capacity of 4 MW. The likes of GE axial compressors that are used for Petroleum or Power applications.

Thanks
 
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Equipment of that size doesn't come with a price tag in a catalog. You'll need to speak directly to an equipment vendor and get a quote.

That said, I'd be surprised if the efficiency increases much once you get above a few tens of kW in size - the theoretical maximum efficiency is a matter of thermodynamics.
 

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