Determination of the operating parameters of steam jet injectors for a main boiler’s regenerative feedwater system

• Autorzy: Adamkiewicz Andrzej , Grzesiak Szymon

Identyfikatory

DOI

10.17402/386

• Języki publikacji: EN

Abstrakty

EN

Due to the development of alternative propulsion systems, there is a need for LNG tanker turbine propulsion plants to regain their competitiveness. Previous research revealed effective methods to increase the thermal efficiency of the steam cycle based on quality assessment, and it was proposed that the latent heat of the main turbine exhaust steam could be recovered. Research was carried out for the steam cycle using regenerative heat exchangers fed by steam jet injectors. In this paper, an algorithm to determine the operating parameters of steam jet injectors, and the calculation results for different drive steam parameters are presented. The obtained results will be used as input parameters for further heat balance calculations of the proposed regenerative steam cycles.

Słowa kluczowe

EN

steam jet injector; steam cycle; steam turbine; propulsion plant; thermal efficiency; determination

• Wydawca: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe Akademii Morskiej w Szczecinie
• Rocznik: 2019
• Tom: nr 60 (132)
• Strony: 171--176
• Opis fizyczny: Bibliogr. 12 poz., rys. tab.

Twórcy

autor

Adamkiewicz Andrzej

• Maritime University of Szczecin, Faculty of Maritime Engineering 1–2 Wały Chrobrego St., 70-500 Szczecin, Poland

autor

Grzesiak Szymon

• Maritime University of Szczecin, Faculty of Maritime Engineering 1–2 Wały Chrobrego St., 70-500 Szczecin, Poland

Bibliografia

• 1. Adamkiewicz, A. & Grzesiak, S. (2017) Evolution of energy efficiency of modern LNG carrier’s steam turbine propulsion plant. Rynek Energii 130, 3, pp. 67–76 (in Polish).
• 2. Adamkiewicz, A. & Grzesiak, S. (2018) Koncepcja zwiększenia stopnia regeneracji turbinowego obiegu parowego. Zeszyty Naukowe Akademii Morskiej w Gdyni, Scientific Journal of Gdynia Maritime University 108, pp. 9–21.
• 3. Adamkiewicz, A. & Grzesiak, S. (2019) Identification of waste heat energy sources of a conventional steam propulsion plant of LNG carrier. Archives of Thermodynamics 40, 3, pp. 195–210.
• 4. Dzida, M. & Mucharski, J. (2009) On the possible increasing of efficiency of ship power plant with the system combined of marine diesel engine, gas turbine and steam turbine in case of main engine cooperation with the gas turbine fed in parallel and the steam turbine. Polish Maritime Research 2 (60), 16, pp. 40–44.
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• 7. Grzesiak, S. (2018) Alternative Propulsion Plants for Modern LNG Carriers. New Trends in Production Engineering 1, 1, pp. 399–408.
• 8. Grzesiak, S. & Adamkiewicz, A. (2018) Application of Steam Jet Injector for Latent Heat Recovery of Marine steam Turbine Propulsion Plant. New Trends in Production Engineering 1, 1, pp. 235–246.
• 9. Hegazy, A. (2007) Possible Waste Heat Recovery in the Condenser of a Regenerative Steam Cycle. Journal of Thermal Science and Technology 2, 1, pp. 1–12.
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