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Study of the effectiveness of the turbine condenser air extraction system using hydro ejectors

Badur J., Kowalczyk T., Ziółkowski P., Tokarczyk P., Woźniak M.

Transactions of the Institute of Fluid-Flow Machinery

2016

nr 131

41--53

The aim of the paper is to investigate the effectiveness of the 18K380 steam turbine condenser air extraction system using hydro ejectors. Motivation for the analysis was a need of improvement of the energy conversion ratio of the power plant. To achieve this goal it was necessary to establish efficiency of each subsystem of the energy cycle. The air extraction system is not a highly power consuming system but it has great impact on the steam cycle efficiency by influence on the condensation temperature. The air extraction system effectiveness depends on a weather conditions, exactly on the ambient temperature, which raises the question whether it is worth to modernize the hydro ejectors or replace them by a centrifugal vacuum pumps. To establish the vacuum system effectiveness a new innovative mass flow measuring system has been implemented to measure an air-steam mixture flow and the fraction of the air mass in the mixture. The measuring system is based on a Venturi nozzle supplemented with a temperature drop during the mixture expansion.

Wykonanie dyszy Venturiego metodą szybkiego prototypowania zastosowane do badań w odpieniaczach akwarystycznych

Siemiński P., Wojs M.

Mechanik

2011

R. 84, nr 2

148-148

Opisano zastosowanie metod szybkiego prototypowania (FDM, Polyjet, drukowanie proszkowe) do wykonywania prototypów dysz napowietrzających. Praca jest fragmentem badań wydajności nowego kształtu dyszy Venturiego stosowanej w odpieniaczach białek do akwariów morskich.

The paper describes the use of rapid prototyping methods (FDM, Polyjet Modeling, 3D Printing) for making prototypes of aeration nozzles. The work is part of research performance of the new shape of the Venturi nozzle used in protein skimmer for marine aquariums.