Comparison of Power Distribution, Losses and Efficiencies of a Steam Turbine with and without Extractions

Autor: Vedran Mrzljak, Sandi Baressi Šegota, Hrvoje Meštrić, Zlatan Car
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Tehnički Glasnik, Vol 14, Iss 4, Pp 480-487 (2020)
Druh dokumentu: article
ISSN: 1846-6168
1848-5588
Popis: The paper presents an analysis of two steam turbine operation regimes - regime with all steam extractions opened (base process) and regime with all steam extractions closed. Closing of all steam extractions significantly increases turbine real developed power for 5215.88 kW and increases turbine energy and exergy losses with simultaneous decrease of turbine energy and exergy efficiencies for more than 2%. First extracted steam mass flow rate has a dominant influence on turbine power losses (in comparison to turbine maximum power when all of steam extractions are closed). Cumulative power losses caused by steam mass flow rate extractions are the highest in the fourth turbine segment and equal to 1687.82 kW.
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