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J. Kubiak
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Proceedings Papers

Finite Element Analysis of Turbine Blades

A. Carnero, J. Kubiak, A. López
Proc. ASME. CIE91, ASME 1991 Computers in Engineering Conference: Volume 2 — Finite Elements/Computational Geometry; Computers in Education; Robotics and Controls, 235-244, August 18–22, 1991
Paper No: CIE1991-0121
DOI: https://doi.org/10.1115/CIE1991-0121
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Topics: Finite element analysis, Turbine blades, Blades, Failure, Finite element methods, Turbines, Erosion, Fracture (Materials), Computation, Deformation
Proceedings Papers

Influence of Cooling Flow Rate Variation on Gas Turbine Blade Temperature Distributions

Fernando Z. Sierra Espinosa, Je Chin Han, Areli Uribe Portugal, J. Kubiak, Diganta Narzary, Sarah Blake, Fernando Cadena, Hugo Lara, Jesu´s Nebradt
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 45-53, June 9–13, 2008
Paper No: GT2008-50103
DOI: https://doi.org/10.1115/GT2008-50103
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Topics: Blades, Cooling, Flow (Dynamics), Gas turbines, Temperature distribution, Temperature, Air flow, Compressors, Thermal stresses, Combustion
Proceedings Papers

Numerical Analysis of Crack Propagation and Life Estimation of Curtis Stage Blade of a Steam Turbine

J. A. Rodri´guez, J. Kubiak, J. C. Garci´a, Jose´ A. Segura, F. Sierra, G. Urquiza
Proc. ASME. IMECE2007, Volume 7: Engineering Education and Professional Development, 587-592, November 11–15, 2007
Paper No: IMECE2007-42554
DOI: https://doi.org/10.1115/IMECE2007-42554
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Topics: Blades, Crack propagation, Fracture (Materials), Numerical analysis, Steam turbines, Stress, Vibration, Fatigue, Finite element model, Fluid dynamics
Proceedings Papers

Numerical Analysis of the Blade Forces Caused by Wake/Blade Interaction in the Last Stage of a Steam Turbine

J. C. Garci´a, J. Kubiak, F. Sierra, G. Urquiza, J. A. Rodri´guez
Proc. ASME. POWER2007, ASME 2007 Power Conference, 283-289, July 17–19, 2007
Paper No: POWER2007-22029
DOI: https://doi.org/10.1115/POWER2007-22029
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Topics: Blades, Numerical analysis, Steam turbines, Vibration, Wakes
Proceedings Papers

The Effect of Boundary Layer Separation on Accuracy of Flow Measurement Using the Gibson Method

F. Z. Sierra, A. Adamkowski, G. Urquiza, J. Kubiak, H. Lara, W. Janicki
Proc. ASME. FEDSM2007, Volume 2: Fora, Parts A and B, 143-148, July 30–August 2, 2007
Paper No: FEDSM2007-37564
DOI: https://doi.org/10.1115/FEDSM2007-37564
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Topics: Boundary layers, Flow measurement, Separation (Technology), Flow (Dynamics), Pipelines, Geometry, Computation, Pressure, Water hammer, Bifurcation
Proceedings Papers

Integrated Diagnostic System for the Equipment of Power Plants: Part I — Formulation and Algorithms

J. Kubiak, A. Garci´a-Gutie´rrez, G. Urquiza, G. Gonza´lez
Proc. ASME. IJPGC2002, 2002 International Joint Power Generation Conference, 457-466, June 24–26, 2002
Paper No: IJPGC2002-26051
DOI: https://doi.org/10.1115/IJPGC2002-26051
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Topics: Algorithms, Power stations, Expert systems, Compressors, Bearings, Pumps, Rotors, Vibration, Combined cycle power stations, Condensers (steam plant)
Proceedings Papers

Integrated Diagnostic System for the Equipment of Power Plants: Part II — The Expert System

J. Kubiak S., G. Urquiza B., A. Garci´a-Gutierrez
Proc. ASME. IJPGC2002, 2002 International Joint Power Generation Conference, 467-473, June 24–26, 2002
Paper No: IJPGC2002-26052
DOI: https://doi.org/10.1115/IJPGC2002-26052
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Topics: Expert systems, Power stations, Algorithms, Compressors, Gas turbines, Heat, Monitoring systems, Steam turbines, Turbines, Vibration analysis
Proceedings Papers

The Diagnosis of Turbine Component Degradation: Case Histories

J. Kubiak S., A. Garci´a-Gutie´rrez, G. Urquiza B., F. Sierra E., J. Siqueiros A., M. A. Basurto-Pensado
Proc. ASME. IJPGC2003, 2003 International Joint Power Generation Conference, 397-403, June 16–19, 2003
Paper No: IJPGC2003-40030
DOI: https://doi.org/10.1115/IJPGC2003-40030
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Topics: Blades, Computer software, Dimensions, Flow (Dynamics), Gas flow, Gas turbines, Machinery, Steam, Steam turbines, Temperature
Proceedings Papers

Failure Analysis of the L-0 Steam Turbine Blade

J. Kubiak S., G. Gonzalez R., D. Jua´rez R., J. Nebradt G., F. Sierra E.
Proc. ASME. IJPGC2003, 2003 International Joint Power Generation Conference, 423-427, June 16–19, 2003
Paper No: IJPGC2003-40056
DOI: https://doi.org/10.1115/IJPGC2003-40056
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Topics: Blades, Failure analysis, Steam turbines, Fracture (Materials), Fracture (Process), Failure, Turbines, Finite element analysis, Stress, Telemetry
Proceedings Papers

Evaluation of the Last Stage Blades of 37.5 and 110 MW Geothermal Turbines

J. Kubiak, F. Sierra, J. C. Garci´a, J. G. Gonza´lez, J. Nebradt, G. Urquiza
Proc. ASME. POWER2006, ASME 2006 Power Conference, 377-383, May 2–4, 2006
Paper No: POWER2006-88222
DOI: https://doi.org/10.1115/POWER2006-88222
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Topics: Blades, Corrosion, Erosion, Fracture (Materials), Fracture (Process), Geothermal engineering, Turbines
Proceedings Papers

Measurement of the Flow in a 170 MW Hydraulic Turbine Recording the Pressure-Time Rise in One Section of the Penstock

F. Sierra, J. Kubiak, G. Urquiza, A. Adamkoski, W. Janicki, J. M. Ferna´ndez, M. Basurto
Proc. ASME. FEDSM2006, Volume 2: Fora, 1029-1035, July 17–20, 2006
Paper No: FEDSM2006-98529
DOI: https://doi.org/10.1115/FEDSM2006-98529
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Topics: Flow (Dynamics), Hydraulic turbines, Pressure, Flow measurement, Calibration, Computer software, Errors, Flow simulation, Reservoirs, Turbines
Proceedings Papers

Numerical Analysis of Unstable Flow in Last-Stage Blades of Steam Turbines

J. C. Garci´a, J. Kubiak, F. Sierra, G. Gonza´lez, G. Urquiza
Proc. ASME. FEDSM2006, Volume 2: Fora, 305-309, July 17–20, 2006
Paper No: FEDSM2006-98498
DOI: https://doi.org/10.1115/FEDSM2006-98498
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Topics: Blades, Flow (Dynamics), Numerical analysis, Steam turbines, Vibration
Proceedings Papers

Air Flow Turbulent Fluctuations in a Centrifugal Fan

F. Z. Sierra, H. C. Lara, J. Kubiak, J. Siqueiros, J. C. Garcia, G. Urquiza
Proc. ASME. IMECE2005, Fluids Engineering, 697-703, November 5–11, 2005
Paper No: IMECE2005-79609
DOI: https://doi.org/10.1115/IMECE2005-79609
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Topics: Air flow, Fluctuations (Physics), Turbulence, Flow (Dynamics), Impellers, Pressure, Rotors, Annulus, Blades, Boilers