The energetic characteristic scale-up calculation of the smaller to the bigger tube model turbine with the evident distinction of the hydraulic design of inlet water passages.
Abstract
For the hydroelectric power station 'DJERDAP II' with tube turbines the energetic characteristics on the model turbine test identical to the full size (runner diameter D SUB 1 = 0.460 m) are performed. The complete characteristics, up to nondimensional unit speed n SUB 1 SUB 1/n SUB 1 SUB 1 SUB gL = 1.65 are determined, because the features of the test bed were limited. But, for the nondimensional unit speeds in the range 1.65 n SUB 1 SUB 1/n SUB 1 SUB 1 SUB gL 2.83 which is of the great interest for the full size turbine operation, the energetic characteristics on the mentioned test bed cannot be obtained. For this purpose, the second cavitation test bed with the smaller model turbine (runner diameter D SUB 1 = 0.250 m) is used. The obtained results could not be used directly because there was the evident distinction between the hydraulic design of the inlet water passages of the first model test bed and the full size plant. Even the turbine shaft bearings were quite different. Finall...y, for the scale up calculation the well known formulae (Hutton, Ackeret, Etinberg, Osterwalder, ...) for so wide range of turbine operation could not be used for such a wide range of turbine operation because the outside operation point of the optimum efficiency (points of the less efficiency) they give the unreal corrective valves. (from authors' abstract)
Source:
In: Proc. Conf. on Fluid Machinery and Flow Measurements, (Ljubljana, Yugoslavia: Apr. 1984), B. Vel, 1984, 1 , Ljubljana, Yugoslavia, Turboinstitut, 1984, Session 5, 279-293Publisher:
- Turboinstitut
Scopus: 2-s2.0-0021193814
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Institution/Community
Mašinski fakultetTY - CONF AU - Benišek, Miroslav AU - Vusković, I. AU - Ignjatović, B. AU - Nedeljković, Miloš PY - 1984 UR - https://machinery.mas.bg.ac.rs/handle/123456789/106 AB - For the hydroelectric power station 'DJERDAP II' with tube turbines the energetic characteristics on the model turbine test identical to the full size (runner diameter D SUB 1 = 0.460 m) are performed. The complete characteristics, up to nondimensional unit speed n SUB 1 SUB 1/n SUB 1 SUB 1 SUB gL = 1.65 are determined, because the features of the test bed were limited. But, for the nondimensional unit speeds in the range 1.65 n SUB 1 SUB 1/n SUB 1 SUB 1 SUB gL 2.83 which is of the great interest for the full size turbine operation, the energetic characteristics on the mentioned test bed cannot be obtained. For this purpose, the second cavitation test bed with the smaller model turbine (runner diameter D SUB 1 = 0.250 m) is used. The obtained results could not be used directly because there was the evident distinction between the hydraulic design of the inlet water passages of the first model test bed and the full size plant. Even the turbine shaft bearings were quite different. Finally, for the scale up calculation the well known formulae (Hutton, Ackeret, Etinberg, Osterwalder, ...) for so wide range of turbine operation could not be used for such a wide range of turbine operation because the outside operation point of the optimum efficiency (points of the less efficiency) they give the unreal corrective valves. (from authors' abstract) PB - Turboinstitut C3 - In: Proc. Conf. on Fluid Machinery and Flow Measurements, (Ljubljana, Yugoslavia: Apr. 1984), B. Vel T1 - The energetic characteristic scale-up calculation of the smaller to the bigger tube model turbine with the evident distinction of the hydraulic design of inlet water passages. EP - 293 SP - 279 VL - 1 , Ljubljana, Yugoslavia, Turboinstitut, 1984, Session 5 UR - https://hdl.handle.net/21.15107/rcub_machinery_106 ER -
@conference{ author = "Benišek, Miroslav and Vusković, I. and Ignjatović, B. and Nedeljković, Miloš", year = "1984", abstract = "For the hydroelectric power station 'DJERDAP II' with tube turbines the energetic characteristics on the model turbine test identical to the full size (runner diameter D SUB 1 = 0.460 m) are performed. The complete characteristics, up to nondimensional unit speed n SUB 1 SUB 1/n SUB 1 SUB 1 SUB gL = 1.65 are determined, because the features of the test bed were limited. But, for the nondimensional unit speeds in the range 1.65 n SUB 1 SUB 1/n SUB 1 SUB 1 SUB gL 2.83 which is of the great interest for the full size turbine operation, the energetic characteristics on the mentioned test bed cannot be obtained. For this purpose, the second cavitation test bed with the smaller model turbine (runner diameter D SUB 1 = 0.250 m) is used. The obtained results could not be used directly because there was the evident distinction between the hydraulic design of the inlet water passages of the first model test bed and the full size plant. Even the turbine shaft bearings were quite different. Finally, for the scale up calculation the well known formulae (Hutton, Ackeret, Etinberg, Osterwalder, ...) for so wide range of turbine operation could not be used for such a wide range of turbine operation because the outside operation point of the optimum efficiency (points of the less efficiency) they give the unreal corrective valves. (from authors' abstract)", publisher = "Turboinstitut", journal = "In: Proc. Conf. on Fluid Machinery and Flow Measurements, (Ljubljana, Yugoslavia: Apr. 1984), B. Vel", title = "The energetic characteristic scale-up calculation of the smaller to the bigger tube model turbine with the evident distinction of the hydraulic design of inlet water passages.", pages = "293-279", volume = "1 , Ljubljana, Yugoslavia, Turboinstitut, 1984, Session 5", url = "https://hdl.handle.net/21.15107/rcub_machinery_106" }
Benišek, M., Vusković, I., Ignjatović, B.,& Nedeljković, M.. (1984). The energetic characteristic scale-up calculation of the smaller to the bigger tube model turbine with the evident distinction of the hydraulic design of inlet water passages.. in In: Proc. Conf. on Fluid Machinery and Flow Measurements, (Ljubljana, Yugoslavia: Apr. 1984), B. Vel Turboinstitut., 1 , Ljubljana, Yugoslavia, Turboinstitut, 1984, Session 5, 279-293. https://hdl.handle.net/21.15107/rcub_machinery_106
Benišek M, Vusković I, Ignjatović B, Nedeljković M. The energetic characteristic scale-up calculation of the smaller to the bigger tube model turbine with the evident distinction of the hydraulic design of inlet water passages.. in In: Proc. Conf. on Fluid Machinery and Flow Measurements, (Ljubljana, Yugoslavia: Apr. 1984), B. Vel. 1984;1 , Ljubljana, Yugoslavia, Turboinstitut, 1984, Session 5:279-293. https://hdl.handle.net/21.15107/rcub_machinery_106 .
Benišek, Miroslav, Vusković, I., Ignjatović, B., Nedeljković, Miloš, "The energetic characteristic scale-up calculation of the smaller to the bigger tube model turbine with the evident distinction of the hydraulic design of inlet water passages." in In: Proc. Conf. on Fluid Machinery and Flow Measurements, (Ljubljana, Yugoslavia: Apr. 1984), B. Vel, 1 , Ljubljana, Yugoslavia, Turboinstitut, 1984, Session 5 (1984):279-293, https://hdl.handle.net/21.15107/rcub_machinery_106 .