Modernisation of Steam Turbine Construction at Regenerative Steam Extraction Point

• Autorzy: Szymaniak M. , Gardzilewicz A.
• Języki publikacji: EN

Abstrakty

EN

The paper presents a methodology which has led to improvement of the turbine stage performance in the regenerative steam extraction chamber area by introducing a ring which collects the leakage flow from the gaps over unshrouded rotor blade tips and directs it to the extraction chamber. A comparison is made between the results obtained for the initial design (without a ring) and the design with the ring mounted. The results obtained for the construction were calibrated using the data measured on a real turbine in a Polish power plant.

Słowa kluczowe

EN

modernization; turbine stage; extraction point; leakage

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2010
• Tom: Vol. 14, No 4
• Strony: 319--327
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Szymaniak M.

autor

Gardzilewicz A.

• Institute of Fluid-Flow Machinery PASci, Fiszera 14, 80-952 Gdansk, Poland,

Bibliografia

• [1] Gardzilewicz A and Marcinkowski S 1993 Turbine Stage, Patent P 160-805, RP Patent Office, Warsaw (in Polish)
• [2] http://www.fluent.com
• [3] Marcinkowski S and Gardzilewicz A 1993 Protocols and Results of Steam Flow Measurements in LP Part of the Modernised Turbine 13K-215, Polaniec Power Plant, Diagnostyka Maszyn Report no. 06/93, Gdansk
• [4] Szymaniak M 2007 The Application of a Numerical Technique to Calculation of Steam Turbine Stages with Leakage Flows and Extractions, PhD Thesis, Gdansk (in Polish)
• [5] Marcinkowski S, Gardzilewicz A and Szymaniak M 2008 Inspection and Analysis of Erosion Threat for Last Stages in 200MW Turbine, Block 3, Kozienice Power Plant, Diagnostyka Maszyn Report no. 06/08, Gdansk (in Polish)