Scroll compressors are efficient, reliable, and a fill a pressure/flow niche in the array of available compressor technologies. However, I have never seen one used the other direction for generating power from a compressed air source, steam, or power cycle. Any thoughts on why this might be the case? Any examples of one being used as a prime mover?
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1$\begingroup$ There seems to be a research paper in that direction, "Powered Reverse Running of Scroll Compressors" from Hugenroth and Barito, 1998: docs.lib.purdue.edu/icec/1285 $\endgroup$– OpticalResonatorCommented Nov 4, 2023 at 8:58
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$\begingroup$ @OpticalResonator, Thanks! That helped me find the "scroll expander" vocab I needed. $\endgroup$– ericnutschCommented Nov 4, 2023 at 10:00
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Looks like "scroll expander" was the term I was looking for.
Still looks to be a pretty rare application, but here are some instances:
- Air Squared commercially available scroll expander
- Here is a good thesis from Oregon State University (direct pdf link).
- Some short Science Direct Excerpts