Doujak, E., Maly, A., Unterluggauer, J., Haller, F. J., Maier, M., Blasbichler, C., & Stadler, S. (2023). Fatigue strength analysis of a prototype Francis turbine in a multilevel lifetime assessment procedure part III: instrumentation and prototype site measurement. Energies, 16(16), Article 6072. https://doi.org/10.3390/en16166072 ( reposiTUm)

Doujak, E., Unterluggauer, J., Fillinger, G., Nocker, A., Haller, F., Maier, M., & Stadler, S. (2022). Fatigue Strength Analysis of a Prototype Francis Turbine in a Multilevel Lifetime Assessment Procedure Part II: Method Application and Numerical Investigation. Energies, 15, 1. https://doi.org/10.3390/en15031165 ( reposiTUm)

Doujak, E., Stadler, S., Fillinger, G., Haller, F., Maier, M., Nocker, A., Gaßner, J., & Unterluggauer, J. (2022). Fatigue Strength Analysis of a Prototype Francis Turbine in a Multilevel Lifetime Assessment Procedure Part I: Background, Theory and Assessment Procedure Development. Energies, 15, 1–30. https://doi.org/10.3390/en15031148 ( reposiTUm)

Unterluggauer, J., Sulzgruber, V., Doujak, E., & Bauer, C. (2020). Experimental and numerical study of a prototype Francis turbine startup. Renewable Energy, 157, 1212–1221. https://doi.org/10.1016/j.renene.2020.04.156 ( reposiTUm)

Unterluggauer, J., Doujak, E., & Bauer, C. (2019). Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation. International Journal of Turbomachinery, Propulsion and Power, 4(3), 21. https://doi.org/10.3390/ijtpp4030021 ( reposiTUm)

Unterluggauer, J., Eichhorn, M., & Doujak, E. (2019). Fatigue analysis of Francis Turbines with different specific speeds using site measurements. WASSERWIRTSCHAFT, 109(S1), 48–53. https://doi.org/10.1007/s35147-019-0234-0 ( reposiTUm)

Unterluggauer, J., Doujak, E., & Bauer, C. (2019). Fatigue analysis of a prototype Francis turbine based on strain gauge measurements. WASSERWIRTSCHAFT, 109(S1), 66–71. https://doi.org/10.1007/s35147-019-0238-9 ( reposiTUm)

Unterluggauer, J., Maly, A., & Doujak, E. (2019). Investigation on the Impact of Air Admission in a Prototype Francis Turbine at Low-Load Operation. Energies, 12(15), 1–19. https://doi.org/10.3390/en12152893 ( reposiTUm)

Bauer, C., & Doujak, E. (2017). Aktueller Stand zur Entwicklung einer modularen Pumpturbine im niedrigen Leistungsbereich. Wasserwirtschaft, 107(10), 54–58. http://hdl.handle.net/20.500.12708/146411 ( reposiTUm)

Doujak, E. (2015). Nepals notwendige Elektrizitätstransition hin zu mehr Wasserkraft. Zek Hydro, 13(Juni), 62–66. http://hdl.handle.net/20.500.12708/150908 ( reposiTUm)

Doujak, E. (2015). Nepals needed electricity transition towards more hydropower. ZEK, 13, 84–87. http://hdl.handle.net/20.500.12708/150909 ( reposiTUm)

Eichhorn, M., Doujak, E., & Schübl, A. (2015). Cavitation Measurement in Hydraulic Machines by Using Accelerometers. Wasserwirtschaft, 105(1), 89–93. http://hdl.handle.net/20.500.12708/150767 ( reposiTUm)

Bhattarai, N., Bajracharya, I., Bauer, C., & Doujak, E. (2015). Study on Residential Sector’s Energy Demand of Nepal for Proper Supply Side Management. Wasserwirtschaft, 105(1), 94–98. http://hdl.handle.net/20.500.12708/150769 ( reposiTUm)

Doujak, E. (2014). Effects in Increased Solar and Wind Energy on Hydro Plant Operation. HRW, 22(6), 28–31. http://hdl.handle.net/20.500.12708/157449 ( reposiTUm)

Gössinger, S., Doujak, E., Bauer, C., & Lenarcic, M. (2014). Nachhaltige Energieplanung und Analyse in Nepal. Österreichische Zeitschrift Für Soziologie, 36(2), 55–73. https://doi.org/10.1007/s11614-011-0033-z ( reposiTUm)

Unterberger, P., Doujak, E., & Bauer, C. (2013). Entwicklung kleiner Pumpturbinen - Vorteile eines modularen Ansatzes. WASSERWIRTSCHAFT, 103(7–8), 47–51. https://doi.org/10.1365/s35147-013-0650-5 ( reposiTUm)

Doujak, E., Unterberger, P., & Bauer, C. (2013). Können Pumpturbinen kleinerer Leistung einen Beitrag zur Energiewende liefern? Zek Hydro, FEBRUAR, 53–57. http://hdl.handle.net/20.500.12708/154791 ( reposiTUm)

Doujak, E., Unterberger, P., & Bauer, C. (2012). Modulare Pumpturbine als Unterstützung bei der Einbindung alternativer Energien ins dezentrale Stromnetz. VGB PowerTech, 9, 68–77. http://hdl.handle.net/20.500.12708/163952 ( reposiTUm)

Doujak, E. (2011). New Concept for an old problem. Zek Hydro, APRIL, 30–33. http://hdl.handle.net/20.500.12708/162775 ( reposiTUm)

Doujak, E. (2011). Triebwasserentsandung - neuer Ansatz für ein altbekanntes Problem. ZEK, FEBRUAR, 36–39. http://hdl.handle.net/20.500.12708/162558 ( reposiTUm)

Doujak, E. (2005). A tool for the future? International Water Power & Dam Construction, 57(05), 28–30. http://hdl.handle.net/20.500.12708/174088 ( reposiTUm)

Vagnoni, E., Gezer, D., Anagnostopoulos, I., Cavazzini, G., Doujak, E., Hocevar, M., & Rudolf, P. (2023). The new role of sustainable hydropower in flexible energy systems and its technical evolution through innovation and digitalization. In Proceedings of ECOS 2023 – The 36th lnternational Conference on Efficiency, Cost, Optimization, Simulation and Environmental lmpact of Energy Systems. 36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, Las Palmas de Gran Canaria, Spain. ( reposiTUm)

Cavazzini, G., Vagnoni, E., Gezer, D., Pummer, E., Kasiulis, E., Cerpinska, M., Fischer-Aupperle, B., Malicka, E., Finger, D. C., Rudolf, P., Doujak, E., & Muntean, S. (2023). Opportunities offered by PEN@HYDROPOWER COST Action CA21104 for the development of the European hydropower community. In Polish Hydropower Conference HYDROFORUM 2023, Abstracts of conference contributions (pp. 49–51). ( reposiTUm)

Medeiros, M., Doujak, E., Haller, F. J., Königswieser, C., & Schmidt, J. (2023). Going with the flow: using immersive analytics to support lifetime predictions of hydropower turbines. In T. Huang, M. Sra, F. Argelaguet, P. Lopes, & M. D. Barrera Machuca (Eds.), Proceedings SUI 2023 ACM : Symposium on Spatial User Interaction. Association for Computing Machinery. https://doi.org/10.1145/3607822.3618009 ( reposiTUm)

Unterluggauer, J., Doujak, E., & Bauer, C. (2019). Numerical Fatigue Analysis of a Prototype Francis Turbine Runner in Low-Load Operation. In Proceedings of 13th European Confernce on Turbomachinery Fluid Dynamics $ Thermodynamics (p. 13). http://hdl.handle.net/20.500.12708/67984 ( reposiTUm)

Unterluggauer, J., Doujak, E., & Bauer, C. (2019). Experimental and numerical study of a prototype Francis turbine startup. In Proceedings 2nd IHAR Asia-Symposium (p. 10). http://hdl.handle.net/20.500.12708/68059 ( reposiTUm)

Doujak, E., & Unterluggauer, J. (2018). Fluid-structure interaction of Francis turbines at different load steps. In Proceedings of the 9th International Symposium on Fluid-Structure Interactions, Flow-Sound Interaction, Flow-induced Vibration & Noise (p. 7). http://hdl.handle.net/20.500.12708/67956 ( reposiTUm)

Unterluggauer, J., Doujak, E., & Bauer, C. (2018). Fatigue analysis of a prototype Francis turbine based on strain. In 20. Internationales Seminar Wasserkraftanlagen (pp. 707–720). http://hdl.handle.net/20.500.12708/67925 ( reposiTUm)

Eichhorn, M., Doujak, E., & Waldner, L. (2016). Investigation of the fluid-structure interaction of a high head Francis turbine using OpenFOAM and Code_Aster. In IOP Conference Series: Earth and Environmental Science (p. 072005). https://doi.org/10.1088/1755-1315/49/7/072005 ( reposiTUm)

Doujak, E., & Eichhorn, M. (2016). An Approach to Evaluate the Lifetime of a High Head Francis Runner. In ISROMAC 2016 International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (p. 10). http://hdl.handle.net/20.500.12708/67486 ( reposiTUm)

Unterluggauer, J., Eichhorn, M., & Doujak, E. (2016). Fatigue analysis of Francis turbines with different specific speeds using site measurements. In 19th International Seminar on Hydropower Plants - Flexible Operation of Hydropower Plants in the Energy System (pp. 645–654). http://hdl.handle.net/20.500.12708/67489 ( reposiTUm)

Doujak, E., & Eichhorn, M. (2016). Impact of volatile electricity generation to the partial load behaviour of hydraulic machines. In Proceedings HydroVision 2016 (p. 12). http://hdl.handle.net/20.500.12708/67524 ( reposiTUm)

Eichhorn, M., & Doujak, E. (2016). Impact of different operating conditions on the dynamic excitation of a high head Francis turbine. In Proceedings of the ASME 2016 International Mechanical Engineering Congress & Exposition (p. 10). http://hdl.handle.net/20.500.12708/67529 ( reposiTUm)

Doujak, E., Unterberger, P., Steiner, P., & Bauer, C. (2014). Numerical Investigation on the spiral case of a fully variable speed multistage pump turbine. In 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (p. 10). http://hdl.handle.net/20.500.12708/66987 ( reposiTUm)

Unterberger, P., Doujak, E., & Bauer, C. (2014). Numerical Investigation on a pumpturbine stage with fully vaned return-channel geometry. In 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (p. 8). http://hdl.handle.net/20.500.12708/66988 ( reposiTUm)

Bajracharya, T. R., Shakya, S. R., Nakarmi, A. M., Ale, B. B., Shrestha, R., Bauer, C., Doujak, E., & Gössinger, S. (2014). Energy Systems Planning and Analysis in Terms of Nepal. In 18. International Seminar on Hydropower Plants - Innovations and Development Needs for Sustainable Growth of Hydropower (pp. 31–46). http://hdl.handle.net/20.500.12708/67119 ( reposiTUm)

Eichhorn, M., Doujak, E., & Schübl, A. (2014). Cavitation MEasurement in Hydraulic Machines by using accelerometers. In 18. International Seminar on Hydropower Plants - Innovations and Development Needs for Sustainable Growth of Hydropower (pp. 713–722). http://hdl.handle.net/20.500.12708/67171 ( reposiTUm)

Doujak, E. (2014). Effects of Increased Renewable Energy Supply. In Hydrovision 2014 (p. 6). http://hdl.handle.net/20.500.12708/67134 ( reposiTUm)

Bajracharya, I., Bauer, C., & Doujak, E. (2014). Assessment of run-of-river hydro potential of the Sunkosi river using geographoc information system (GIS). In 18. International Seminar on Hydropower Plants - Innovations and Development Needs for Sustainable Growth of Hydropower (pp. 857–866). http://hdl.handle.net/20.500.12708/67172 ( reposiTUm)

Bhattarai, N., Bauer, C., & Doujak, E. (2014). Residential Sector Energy Demand Projection and Analysis of Nepal for Sustainable Utilization of Local Hydropower Resources. In 18. International Seminar on Hydropower Plants - Innovations and Development Needs for Sustainable Growth of Hydropower (pp. 845–866). http://hdl.handle.net/20.500.12708/67091 ( reposiTUm)

Erne, S., Edinger, G., Doujak, E., & Bauer, C. (2014). Numerical and Experimental Investigation on Unsteady Inflow Conditions of a Pump-Turbine. In Proceedings of the ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting (p. 9). http://hdl.handle.net/20.500.12708/67088 ( reposiTUm)

Edinger, G., Erne, S., Doujak, E., & Bauer, C. (2014). Flow determination of a pump-turbine at zero discharge. In 27th IAHR Symposium on Hydraulic Nachinery and Systems (p. 11). http://hdl.handle.net/20.500.12708/67096 ( reposiTUm)

Doujak, E. (2013). Pumped storage powerplants with special reference to variable speed turbines and generators and its necessity in harnessing renewable energy sources. In Hydro Power & Sustainable Development (p. 7). http://hdl.handle.net/20.500.12708/66759 ( reposiTUm)

Erne, S., Edinger, G., Doujak, E., Bauer, C., List, B., & Gaschl, J. (2013). CFD validation of inlet flow of a pump-turbine in pump mode, operating at part load. In Conference papers of Hydro 2013 - Promoting the Versatile Role of Hydro (p. 7). Aqua-Media International. http://hdl.handle.net/20.500.12708/66836 ( reposiTUm)

Doujak, E., Unterberger, P., & Bauer, C. (2012). Design concept of a modular multistage pump-turbine. In Innovative Approaches to Global Challenges (p. 10). http://hdl.handle.net/20.500.12708/66633 ( reposiTUm)

Doujak, E., & Nicolle, J. (2012). Numerical simulation and refurbishment options for a moody draft tube. In Pumped storage in the context of renewable energy supply (pp. 505–515). http://hdl.handle.net/20.500.12708/66648 ( reposiTUm)

Unterberger, P., Doujak, E., & Bauer, C. (2012). Small Hydro approach for Pump-Turbines - is a modular concept a possible solution? In Pumped storage in the context of renewable energy supply (pp. 91–103). http://hdl.handle.net/20.500.12708/66632 ( reposiTUm)

Doujak, E., Unterberger, P., & Bauer, C. (2012). Numerical Simulation of Multistage Pump-Turbine Components. In Hydroturbo 2012 (pp. 3–13). http://hdl.handle.net/20.500.12708/66594 ( reposiTUm)

Doujak, E., Unterberger, P., Bauer, C., & Samonig, M. (2012). Development of a modular pumped turbine concept for decentralized power production. In Hidroenergia 2012 (p. 12). http://hdl.handle.net/20.500.12708/66554 ( reposiTUm)

Doujak, E., Edinger, G., & Holzmann, G. (2012). The usage of strongly swirling flow for pressure pipe desilting in a hydropower plant. In 14th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (p. 8). Technische Universität Darmstadt. http://hdl.handle.net/20.500.12708/66521 ( reposiTUm)

Doujak, E., Unterberger, P., Bauer, C., & Samonig, M. (2012). Modular Concept for Decentraliced Pump Storage Systems A Small Hydro Approach. In 14th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (p. 8). Technische Universität Darmstadt. http://hdl.handle.net/20.500.12708/66524 ( reposiTUm)

Doujak, E., Unterberger, P., & Bauer, C. (2012). Decentralized Pump Storage Systems - A New Modular Small Hydro Concept. In HydroVision 2012 (p. 14). http://hdl.handle.net/20.500.12708/66596 ( reposiTUm)

Doujak, E., Unterberger, P., Weltzl, M.-M., & Bauer, C. (2012). Numerical investigation of the refeeding channel of a multistage high-head pump-turbine. In Conference Proceedings (pp. 772–779). http://hdl.handle.net/20.500.12708/66595 ( reposiTUm)

Doujak, E. (2011). A new method for a well known problem - Sediment removal by Axial Hydro Cyclone. In Retrud-11 (pp. 50–58). Centre for Energy Studies, Tribhuvan University, Nepal. http://hdl.handle.net/20.500.12708/66472 ( reposiTUm)

Doujak, E. (2011). Development of an Axial Hydro Cyclone for Pressure Pipe Desilting. In HydroVision 2011 (p. 6). HydroVision 2011. http://hdl.handle.net/20.500.12708/66466 ( reposiTUm)

Doujak, E., & Götsch, H. (2010). Usage of an Axial Hydro Cyclone as Sediment Separator. In 16. Internationales Seminar Wasserkraftanlagen (pp. 87–95). http://hdl.handle.net/20.500.12708/66256 ( reposiTUm)

Doujak, E., & Gössinger, S. (2010). Analysis of hydraulic facilities for combining pumped storage power systems and wind power in Austria. In Hidroenergia 2010 - Lausanne (p. 6). http://hdl.handle.net/20.500.12708/66258 ( reposiTUm)

Doujak, E., & Götsch, H. (2010). Pressure pipe desilting by an axial hydro cyclone - a first approach. In HYDRO 2010 Meeting Demands for Changing World (p. 8). http://hdl.handle.net/20.500.12708/66260 ( reposiTUm)

Doujak, E., & Götsch, H. (2010). Entwicklung eines Axialzyklons zur Triebwasserentsandung - Ein erster Ansatz. In 13. Internationales Anwenderforum Kleinwasserkraftwerke (pp. 54–60). http://hdl.handle.net/20.500.12708/66261 ( reposiTUm)

Doujak, E. (2008). Numerical calculation of the flow- and load- coefficient for the design of weirs and gates. In 15. Internationales Seminar Wasserkraft (pp. 161–183). http://hdl.handle.net/20.500.12708/65875 ( reposiTUm)

Doujak, E., & Naipal, S. (2008). The Gran-olo Mini Hydropower plant as local source for energy supply in the remote aera of Suriname- Preparation for implementation of high voltage transmission line. In 15. Internationales Seminar Wasserkraft (pp. 625–632). http://hdl.handle.net/20.500.12708/65876 ( reposiTUm)

Doujak, E., & Nicolle, J. (2008). Basic Numerical Simulation of a Moody Draft Tube. In HydroVision 2008 (p. 17). HCI Publications Inc. http://hdl.handle.net/20.500.12708/65877 ( reposiTUm)

Doujak, E., & Naipal, S. (2008). The Gran-olo-sula projekt: MHP implementation in the hinterland of surinam. In Hidroenergia 2008 (p. 10). http://hdl.handle.net/20.500.12708/65878 ( reposiTUm)

Doujak, E., & Latif, M. (2006). Lessons learned by playing the “Hydropower Plant Simulator - HPPS.” In HydroVision 2006 (p. 15). http://hdl.handle.net/20.500.12708/65524 ( reposiTUm)

Doujak, E. (2006). Development, simulation and stress analysis of a rope trash rake machine for Small Hydropower plants. In Hidrogenia 06 (p. 13). http://hdl.handle.net/20.500.12708/65525 ( reposiTUm)

Naipal, S., & Doujak, E. (2006). LOW HEAD TURBINE IMPLEMENTATION IN SURINAME. In 14. Internationales Seminar Wasserkraftanlagen (pp. 365–376). http://hdl.handle.net/20.500.12708/65515 ( reposiTUm)

Unterberger, P., Doujak, E., & Bauer, C. (2015). Entwicklung kleiner Pumpturbinen - Vorteile eines modularen Ansatzes. In S. Heimerl (Ed.), Wasserkraftprojekte Band II (pp. 182–187). Springer Vieweg. http://hdl.handle.net/20.500.12708/28657 ( reposiTUm)

Doujak, E. (2015). The Nepalese Context - How to see technical problems from a different point of view. In Appear (pp. 122–132). Böhlau. http://hdl.handle.net/20.500.12708/28839 ( reposiTUm)

Doujak, E., & Bauer, C. (Eds.). (2018). Tagungsband 20. Internationales Seminar Wasserkraftanlagen. Institut für Energietechnik und Thermodynamik. http://hdl.handle.net/20.500.12708/24509 ( reposiTUm)

Doujak, E., & Bauer, C. (Eds.). (2016). Tagungsband 19. Internationales Seminar Wasserkraftanlagen. Institut f Energietechnik und Thermodynamik. http://hdl.handle.net/20.500.12708/24198 ( reposiTUm)

Doujak, E., & Bauer, C. (Eds.). (2014). Tagungsband 18. Internationales Seminar Wasserkraftanlagen. Institut f Energietechnik und Thermodynamik. http://hdl.handle.net/20.500.12708/23882 ( reposiTUm)

Doujak, E., & Bauer, C. (Eds.). (2012). Tagungsband 17. Internationales Seminar Wasserkraftanlagen. Institut f Energietechnik und Thermodynamik. http://hdl.handle.net/20.500.12708/23583 ( reposiTUm)

Doujak, E. (Ed.). (2010). 16. Internationales Seminar Wasserkraftanlagen. Institut f Energietechnik und Thermodynamik. http://hdl.handle.net/20.500.12708/23200 ( reposiTUm)

Doujak, E., & Matthias, H.-B. (Eds.). (2006). Tagungsband 14. Internationales Seminar Wasserkraftanlagen. Institut für Wasserkraftmaschinen und Pumpen. http://hdl.handle.net/20.500.12708/22700 ( reposiTUm)

Doujak, E. (2017). Part load operation of Francis Turbines with special consideration to fatigue strength using numerical simulations and site measurements. AWG-IAHR Symposium on Hydraulic Machinery and Systems, Peking, China, Non-EU. http://hdl.handle.net/20.500.12708/94683 ( reposiTUm)

Bauer, C., & Doujak, E. (2017). Aktueller Stand zur Entwicklung einer modularen Pumpturbine im niedrigen Leistungsbereich. 11. Seminar Kleinwasserkraft, Stuttgart, EU. http://hdl.handle.net/20.500.12708/94653 ( reposiTUm)

Doujak, E. (2014). Pumped Storage Power Plants with Special Consideration on Variable Speed Units for the Integration of Fluctuating Renewable Energy Sources. Grand Renewable Energy 2014, Tokio, Japan, Non-EU. http://hdl.handle.net/20.500.12708/93959 ( reposiTUm)

Doujak, E. (2014). Latest developments of using an axial hydro cyclone for pressure pipe desilting. Hidroenergia 2014, Istanbul, Non-EU. http://hdl.handle.net/20.500.12708/94037 ( reposiTUm)

Doujak, E. (2014). Mehrstufige modulare Pumpturbine für kleine Speicheranlagen. Hydropower alpina, Salzburg, Austria. http://hdl.handle.net/20.500.12708/93816 ( reposiTUm)

Doujak, E. (2013). Entwicklungstendenzen bei Pumpspeicherung im Kontext mit erneuerbaren Energien. Fachtagung Maschinenbau - Strömungsmaschinen, St. Pölten, Austria. http://hdl.handle.net/20.500.12708/93658 ( reposiTUm)

Doujak, E. (2011). Model tests to sediment removal by an Axial Hydro Cyclone. Renexpo Austria, Salzburg, Austria. http://hdl.handle.net/20.500.12708/93284 ( reposiTUm)

Doujak, E., Maly, A., & Bauer, C. (2015). Druck - und Schwallmessung im KW Offner (I 2015/04). http://hdl.handle.net/20.500.12708/38988 ( reposiTUm)

Doujak, E. (2014). Experimentelle und numerische Untersuchungen zum instabilen Teillastbetrieb von Pumpturbinen (No. 3). http://hdl.handle.net/20.500.12708/38291 ( reposiTUm)

Promper, O., & Doujak, E. (2004). Berechnung der Strömung in einem let down valve einer Ethylenanlage. http://hdl.handle.net/20.500.12708/34524 ( reposiTUm)

List, B., Doujak, E., & Artmann, M. (2003). Berechnung der Strömung im Laufrad einer Kreiselpumpe. http://hdl.handle.net/20.500.12708/34467 ( reposiTUm)

Doujak, E. (2000). Ein Beitrag zur technisch ökonomischen Analyse von Verschlußkörpern bei der Beurteilung über Revitalisierungs- bzw. Modernisierungsmaßnahmen von Wasserkraftanlagen [Dissertation, Technische Universität Wien]. reposiTUm. http://hdl.handle.net/20.500.12708/186652 ( reposiTUm)