Surface roughness effects on losses in turbine stages

• Autorzy: Tajč, L. , Bednář, L. , Jůza, Z. , Valenta, R.
• Konferencja: International Symposium SYMKOM Compressor & Turbine Flow Systems, Treory & Application Areas (15-17.09.2008; Łódź; Polska)
• Języki publikacji: EN

Abstrakty

EN

The influence of surface roughness on energetic losses in a turbine blade cascade is presented here. The impact of Reynolds and Mach number by the different surface roughness on losses is described. Results from experimental steam turbine are compared with information received after investigation on a linear blade cascade in an aerodynamic wind tunnel.

Słowa kluczowe

PL

turbina; straty; chropowatość

EN

turbine; losses; roughness

• Czasopismo: Zeszyty Naukowe. Cieplne Maszyny Przepływowe - Turbomachinery / Politechnika Łódzka
• Rocznik: 2008
• Tom: nr 133
• Strony: 343--350
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Tajč, L.

• ŠKODA POWER a. s., Tylova 1/57, 301 28 Plzeň

autor

Bednář, L.

• ŠKODA POWER a. s., Tylova 1/57, 301 28 Plzeň

autor

Jůza, Z.

• ŠKODA POWER a. s., Tylova 1/57, 301 28 Plzeň

autor

Valenta, R.

• VZLU a. s., Beranových 130, 199 05 Praha

Bibliografia

• [1] Benetka, J., Ulrich, J. & Valenta, R., 2003, Měření vlivu drsnosti I, Research report VZLÚ, V 1778/03, (Only in Czech)
• [2] Benetka, J. & Valenta, R., 2004, Měření vlivu drsnosti II, Research report VZLÚ, V 1788/04, (Only in Czech)
• [3] Benetka, J. & Valenta R., 2004, Měření vlivu drsnosti III, Research report VZLÚ, V 1816/04, (Only in Czech)
• [4] Jůza Z. & Tajč, L., 2006, Výpočtová studie vlivu drsnosti povrchu na ztráty v lopatkové mříži, Research report ŠKODA POWER, VZTP1006, (Only in Czech)
• [5] Tajč, L., Bednář, L., Jůza, Z. & Rudas, B., 2005, Vliv drsnosti povrchu lopatek na ztráty v turbínovém stupni, Research report ŠKODA POWER, VZTP0984, (Only in Czech)
• [6] Hummel, F., Lötzerich M. Cardamone, P. & Fottner, L., 2005, Surface Roughness Effects on Turbine Blade Aerodynamics, ASME, Journal of Trubomachinery, vol. 127
• [7] Baynton, J. L., Tabibzadech, R., Hudson, S. T. (1993): Investigation of Rotor Blade Roughness Effects on Turbine Performance, Transactions of the ASME, Vol. 115
• [8] Bons, J. P., Taylor, R. P., McClain S. T. & Rivir, R. B., 2001, The Many Faces of Turbine Surface Roughness, Journal of Turbomachinery, ASME, Vol. 123
• [9] Van Rooij R. P. J. O. M. & Timmer W. A., 2003, Roughness Sensitivity Consideration for Thick Rotor Blade Airfoils, Transactions of the ASME, Vol. 125
• [10] Mcllroy, H. M., Budwikg, R. S. & McEligot D. M., 2003, Scaling of Turbine Blade Roughness for Model Studies, ASME IMECE