The Concept of Increasing Regeneration Degree of Steam Cycle

Authors

  • A. Adamkiewicz Akademia Morska w Szczecinie, ul. Wały Chrobrego 1-2, 70-500 Szczecin, Wydział Mechaniczny
  • S. Grzesiak Akademia Morska w Szczecinie, ul. Wały Chrobrego 1-2, 70-500 Szczecin, Wydział Mechaniczny

DOI:

https://doi.org/10.26408/108.01

Keywords:

thermal efficiency, degree of regeneration, propulsion plant, steam turbine, steam jet injector

Abstract

This paper presents the results of carried out analyses regarding efficiency and criteria evaluation of various propulsion plants of modern LNG (Liquid Natural Gas) carriers as well as identification and quality assessment of waste heat energy fluxes of a CST (Conventional Steam Turbine) plant. The possibility of use a steam jet injector in order to recover the latent heat is analysed. Calculations were carried out for an injector. On the basis of the results of the injector calculation, the heat balance of a simple regenerative Clausius- Rankine steam cycle was carried out. The degree of regeneration for cycle using the regenerative injector was determined. Based on results the further research directions for complex plants using a steam jet injector are indicated.

References

Adamkiewicz, A., Grzesiak, S., 2016, Ewolucja efektywności energetycznej turbinowych napędów parowych współczesnych zbiornikowców LNG, Rynek Energii, nr 130/3, s. 92–98.

[2] Adamkiewicz, A., Grzesiak, S., 2018, Identification of Waste Heat Energy Sources of a Conventional Steam Propulsion Plant of an LNG Carrier, Proceeding of 5th International Conference Bremen, “Low Temperature and Waste Heat Use in Communal and Industrial Energy Supply Systems – Theory and Practice –“, Bremen.

[3] Adamkiewicz, A., Michalski, R., Zeńczak, W., 2012, Wybrane problemy technologii konwersji energii w okrętowych systemach energetycznych, KAPRINT, Lublin.

[4] Bukurov, M., Bikic, S., Prica, M., 2012, The Efficiency Rate of a Steam-Water Injector, Acta Polytechnica Hungarica, vol. 9, no. 5, óbuda University, Budapest.

[5] Drożyński, Z., Konorski, A., 1980, Algorytm wyznaczania parametrów termodynamicznych urządzeń eżektorowych, Instytut Maszyn Przepływowych PAN, Gdańsk.

[6] Goliński, A., Troskolański, T., 1979, Strumienice. Teoria i konstrukcja, WNT, Warszawa.

[7] Gryboś, R. 1956, Regeneracja ciepła w siłowni z turbiną bezupustową, Zeszyty Naukowe Politechniki Śląskiej, vol. 1, no. 5, Gliwice.

[8] Grzesiak, S., 2018, Alternative Propulsion Plants for Modern LNG Carriers, New Trends in Production Engineering, vol. 1, no. 1.

[9] IGU World LNG Report, 2018, http://www.igu.org, [dostęp: sierpień 2018].

[10] Szargut, J., Ziębik, A., 1998, Podstawy energetyki cieplnej, Wydawnictwo Naukowe PWN, Warszawa.

[11] Trela, M., Kwidzinski, R., Gluch, J., 2009, Analysis of Application of Feed – Water Injector Heaters to Steam Power Plants, Polish Maritime Research, vol. 16, no. 1.

Downloads

Published

2018-12-29

How to Cite

Adamkiewicz, A., & Grzesiak, S. (2018). The Concept of Increasing Regeneration Degree of Steam Cycle. Scientific Journal of Gdynia Maritime University, (108), 9–21. https://doi.org/10.26408/108.01

Issue

No. 108 (2018)

Section

Articles

License

Copyright (c) 2018 The Author(s)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors retain the copyright to their work, licensing it under the Creative Commons Attribution License Attribution 4.0 International licence (CC BY 4.0) which allows articles to be re-used and re-distributed without restriction, as long as the original work is correctly cited. The author retains unlimited copyright and publishing rights.