An energetic analysis of a gas turbine with regenerative heating using turbine extraction at intermediate pressure - Brayton cycle advanced according to Szewalski's idea

Paweł Ziółkowski, Janusz Badur and Piotr Józef Ziółkowski

Energy, 2019, vol. 185, issue C, 763-786

Abstract: In this paper, a modification of a simple gas turbine into the Brayton cycle with regenerative heating, using turbine extraction at intermediate pressure, is presented. The main concept of the retrofitting is based on the transfer of heat from the turbine exhaust gases to the air entering the combustion chamber. The extracted gas transfers heat to air via the divided regenerative heat exchanger and after that is compressed and mixed with additional air. The efficiency gain is dependent on the extraction intermediate pressure and the extraction mass flow rate.

Keywords: Thermodynamic analysis; Regenerative heat exchanger; Extraction at intermediate pressure; In-house code COM-GAS; Increase of efficiency (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (11)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:185:y:2019:i:c:p:763-786

DOI: 10.1016/j.energy.2019.06.160

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