Exhaust Hood for the Steam Turbines of Single - Flow Arrangement

• Autorzy: Tajc L. , Bednar L. , Poskocilova M. , Hoznedl M.
• Języki publikacji: EN

Abstrakty

EN

The effect of the front wall inclination and the mutual position of casing and diffuser on thermodynamical losses have been investigated. The effect of the outer-casing shape variation was studied. In addition, the influence of taking-out for bearing cover on the loss factor has also been tasted. The computational model employed as the input a measured inlet velocity profile. Some internal rib and reinforcement were neglected in the model. A 3D model was used, but the symmetry of the flow field was taken into account. Only half of the flow channel was being treated in the computation. The results were compared with the available experimental data.

Słowa kluczowe

EN

exhaust hood; steam turbine; diffuser

PL

króćce wylotowe; turbina parowa; dyfuzor

• Wydawca: Wydawnictwo Politechniki Łódzkiej
• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2005
• Tom: nr 128, vol. 2
• Strony: 547--556
• Opis fizyczny: Bibliogr. 4 poz.

Twórcy

autor

Tajc L.

• ŠKODA POWER s. r. o., Plzeň, Czech Republic

autor

Bednar L.

• ŠKODA POWER s. r. o., Plzeň, Czech Republic

autor

Poskocilova M.

• ŠKODA POWER s. r. o., Plzeň, Czech Republic

autor

Hoznedl M.

• ZČU Plzeň, Czech Republic

Bibliografia

• [1] Tajč, L., Bednář, L., Polanský, J., Kňourek, J., Feldberg, L. A.: “Flow Computations and Experimental Investigation of Exhaust Hoods”, CMP Turbomachinery, No 115, Symkom´99, Łódź 1999.
• [2] Tajč, L., Bednář, L., Polanský, J., Goudkov, E. I.: “Exhaust Hoods of Double-flow Arrangement”, 4th European Conference on Turbomachinery, 2000.
• [3] Tajč, L., Polanský, J., Synáč, J.: “Experimental Investigation of Low-pressure Steam Turbine Exhaust Hood”, CMP Turbomachinery, No 122, Symkom´02, Łódź 2002.
• [4] Hoznedl, M., Krejčík, J., Tajč, L., Linhart, J.: “Computational Modelling of Flow in an Exhaust Hood of a Steam Turbine and Comparison with Experimental Results”, Power System Engineering – Fluid Flow – Heat Transfer, UWB in Pilsen, 2004.