Calcium looping with supercritical CO2 cycle for decarbonisation of coal-fired power plant

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dc.contributor.authorHanak, Dawid P.
dc.contributor.authorManovic, Vasilije
dc.date.accessioned2016-08-05T15:54:55Z
dc.date.available2016-08-05T15:54:55Z
dc.date.issued2016-03-11
dc.description.abstractState-of-the-art integration scenarios of calcium looping (CaL), which is an emerging CO capture technology, assume that excess heat is used to raise steam for the steam cycle and result in a net efficiency penalty of 6.0-8.0% points. In this study, a concept using the supercritical CO cycle (s-CO) instead of the conventional steam cycle is proposed. Retrofit of CaL with recompression s-CO cycle to the 580 MW coal-fired power plant was found to result in a net efficiency penalty of 6.9% points. This is 1% point lower than that for the same system linked with the steam cycle having the same turbine inlet conditions (593.3 °C/242.3 bar). A further reduction of the net efficiency penalty to 5.8% points was achieved through considering a pump instead of a first CO compression stage and increasing the turbine inlet temperature to 620 °C and pressure to 300 bar. As the s-CO cycle's specific capital cost is up to 27% lower than that of the equivalent steam cycle, CaL with s-CO cycle is a viable option for the coal-fired power plant decarbonisation. Moreover, it can be expected that this cycle can be successfully implemented in other high-temperature looping cycles, such as chemical looping combustion.en_UK
dc.identifier.citationDawid P. Hanak, Vasilije Manovic, Calcium looping with supercritical CO2 cycle for decarbonisation of coal-fired power plant, Energy, Volume 102, 1 May 2016, Pages 343-353en_UK
dc.identifier.issn0360-5442
dc.identifier.urihttp://dx.doi.org/doi:10.1016/j.energy.2016.02.079
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/10242
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-Non-Commercial-No Derivatives 3.0 Unported (CC BY-NC-ND 3.0). You are free to: Share — copy and redistribute the material in any medium or format. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No Derivatives — If you remix, transform, or build upon the material, you may not distribute the modified material. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectCalcium loopingen_UK
dc.subjectCarbon captureen_UK
dc.subjectCoal-fired power planten_UK
dc.subjectSupercritical CO2 cycleen_UK
dc.subjectRecompression Brayton cycleen_UK
dc.subjectEfficiency penalty reductionen_UK
dc.titleCalcium looping with supercritical CO2 cycle for decarbonisation of coal-fired power planten_UK
dc.typeArticleen_UK

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