Application of Steam Jet Injector for Latent Heat Recovery of Marine Steam Turbine Propulsion Plant

• Autorzy: Szymon Grzesiak , Andrzej Adamkiewicz
• Języki publikacji: EN

Abstrakty

EN

This paper presents the results of previously carried out analyses regarding efficiency and criteria evaluation of various propulsion plants of modern LNG (Liquid Natural Gas) carriers. The results of previous identification and quality assessment of waste heat energy sources of a CST (Conventional Steam Turbine) plant are presente. In this paper the possibility of use a steam jet injector in order to recover the latent heat is analysed. Calculations were carried out for an injector equipped with a de Laval nozzle, determining the thermodynamic state parameters of the mixture of drive steam and sucked in steam as well as the steam on the outlet of the injector for the various ejection ratios. On the basis of the results of the injector calculation, the heat balance of a simple regenerative Clausius - Rankine steam cycle (with one regenerative heater - deaerator) was carried out. The degree of regeneration (increase of the thermal efficiency) for cycle using the regenerative injector was determined. Based on results the further research directions for complex plants using a steam jets are indicated. (original abstract)

Słowa kluczowe

EN

Drive system; Machinery and equipment; Engines; Sea navigation

PL

Układ napędowy; Maszyny i urządzenia; Silniki; Żegluga morska

• Czasopismo: New Trends in Production Engineering
• Rocznik: 2018
• Tom: 1
• Strony: 235--244

Twórcy

autor

Szymon Grzesiak

• Marine Engineer Class II

autor

Andrzej Adamkiewicz

• Maritime University in Szczecin, Poland

Bibliografia

• Adamkiewicz A., Grzesiak S. (2018): Identification of waste heat energy sources of a conventional steam propulsion plant of an LNG carrier, proceeding of 5 th International Conference Bremen, "Low Temperature and Waste Heat Use in Communal and Industrial Energy Supply Systems - Theory and Practice
• Adamkiewicz A. and Grzesiak S. (2016): Ewolucja efektywności energetycznej turbinowych napędów parowych współczesnych zbiornikowców LNG, Rynek Energii 130/3 p. 92-98
• Behrendt C. and Adamkiewicz A. (2010): LNG Carrier Power Systems, RYNEK ENERGI Issue 3 JUN 2010 p. 55-62
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• Grzesiak S. (2018): ALTERNATIVE PROPULSION PLANTS FOR MODERN LNG CARRIERS, New Trends in Production Engineering - Volume 1, issue 1, 2018.
• Gryboś R. (1956): Regeneracja ciepła w siłowni z turbiną bezupustową, Zeszyty Naukowe Politechniki Śląskiej Issue 1, No 5, Gliwice 1956 p. 59-80
• Hegazy A. (2007): Possible Waste Heat Recovery in the Condenser of a Regenerative Steam Cycle, Journal of Thermal Science and Technology Vol 2, No 1, 2007 p. 1-12
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• IGU World LNG Report (2018) Available at: http://www.igu.org [accessed August 2018]
• Trela M. and Kwidzinski R. and Gluch J. (2009): Analysis of application of feed - water injector heaters to steam power plants, Polish Maritime Research Volume 16 Special Issue:1 2009 p. 64-70

Identyfikatory

DOI

10.2478/ntpe-2018-0030