Impact of compressed air energy storage demands on gas turbine performance

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dc.contributor.authorIgie, Uyioghosa
dc.contributor.authorAbbondanza, Marco
dc.contributor.authorSzymaƄski, Artur
dc.date.accessioned2020-02-21T12:47:14Z
dc.date.available2020-02-21T12:47:14Z
dc.date.issued2020-02-16
dc.description.abstractIndustrial gas turbines are now required to operate more flexibly as a result of incentives and priorities given to renewable forms of energy. This study considers the extraction of compressed air from the gas turbine; it is implemented to store heat energy at periods of a surplus power supply and the reinjection at peak demand. Using an in-house engine performance simulation code, extractions and injections are investigated for a range of flows and for varied rear stage bleeding locations. Inter-stage bleeding is seen to unload the stage of extraction towards choke, while loading the subsequent stages, pushing them towards stall. Extracting after the last stage is shown to be appropriate for a wider range of flows: up to 15% of the compressor inlet flow. Injecting in this location at high flows pushes the closest stage towards stall. The same effect is observed in all the stages but to a lesser magnitude. Up to 17.5% injection seems allowable before compressor stalls; however, a more conservative estimate is expected with higher fidelity models. The study also shows an increase in performance with a rise in flow injection. Varying the design stage pressure ratio distribution, brought about an improvement in the stall margin utilized, only for high extraction.en_UK
dc.identifier.citationIgie U, Abbondanza M, SzymaƄski A, et al., (2021) Impact of compressed air energy storage demands on gas turbine performance, Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, Volume 235, Issue 4, June 2021, pp. 850-865en_UK
dc.identifier.issn0957-6509
dc.identifier.urihttps://doi.org/10.1177/0957650920906273
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15166
dc.language.isoenen_UK
dc.publisherSageen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectgas turbineen_UK
dc.subjectCompressed airen_UK
dc.subjectenergy storageen_UK
dc.subjectextractionen_UK
dc.subjectInjectionen_UK
dc.subjectStallen_UK
dc.titleImpact of compressed air energy storage demands on gas turbine performanceen_UK
dc.typeArticleen_UK

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