A non-conventional interpretation of thermal regeneration in steam cycles

Stefano Bracco and Lorenzo Damiani

Applied Energy, 2012, vol. 97, issue C, 548-557

Abstract: The paper aims to contribute to a better understanding of the thermodynamic concept of heat regeneration in steam power plants with a finite number of bleedings. A regenerative Rankine cycle is compared to a complex system (CHC – complete hybrid cycle) composed by one non-regenerative Rankine cycle (HEC – hybrid engine cycle) and more reverse cycles (RCs – reverse cycles), as many as the number of the bleedings, able to pump heat from the condenser to a series of surface feedwater heaters, disposed upstream of the steam plant boiler. The COPs (coefficients of performance) of the heat pumps are evaluated, and new interesting formulations of the efficiency of the regenerative steam cycle are proposed.

Keywords: Regenerative Rankine cycle; Cycle efficiency; Feedwater heaters; Heat pump; COP (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:97:y:2012:i:c:p:548-557

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DOI: 10.1016/j.apenergy.2011.12.047

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