Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: steam turbine stage

Sortuj według:

Ogranicz wyniki do:

Performance analysis of a new LP stage located upstream of the extraction point in a 225 MW turbine

Gardzilewicz A., Szymaniak M., Głuch J.

Journal of Power Technologies

2012

Vol. 92, nr 4

241--248

A new design of steam turbine stages upstream an extraction point is presented. In this solution a special ring guides the steam leakage flow directly to the heat exchanger. The experiments and calculations have confirmed advantages of the new design as manifested by turbine operating features and efficiency. The design has been applied in 30 old turbines with Baumann stages. Recently, the patent was used in the LP exit ND-41A of modernised 225 MW turbines in the Polaniec and Kozienice power plants.

Proposal of modernisation of a steam turbine stage before extraction, CFD and CSD analysis

Gardzielewicz A., Karcz M., Marcinkowski S., Bielecki M., Badur J., Malec A., Banaszkiewicz M.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2002

Vol. 6, No 4

577-589

The paper presents an idea and analysis of application of a new solution of a stage before extraction in the modernised LP part of 200MW turbines with ND exhaust. The idea of the patent is to introduce to the turbine steam path a ring directing high energy tip leakage steam from the stage to the regenerative extraction. Owing to this it is possible to cheaply achieve some energy benefits from the operation of first heat exchanger which in the modernised 200MW turbine is continuously underheated. Ring design has been checked using CFD and CSD numerical codes.