1. Software tool for progressive dam breach outflow estimation 

   Vetsch, D. F.; Halso, M. C.; Seidelmann, L.; et al. (2023)

   ROLE OF DAMS AND RESERVOIRS IN A SUCCESSFUL ENERGY TRANSITION, ECS 2023

   Hazard assessment due to a dam failure is an important task in risk management. Assessment of the related hazard potential is based on a dam break analysis, a multi-step workflow in which the first step includes the analysis of possible dam failure and estimation of the outflow hydrograph. For that purpose, various approaches with different level of details with regard to modelled physical processes are available. Among the simplest ...

   Conference Paper

2. Efficiency evaluation and simulation of sediment bypass tunnel operation: Case study solis reservoir 

   Dahal, S.; Maddahi, M. R.; Albayrak, I.; et al. (2023)

   ROLE OF DAMS AND RESERVOIRS IN A SUCCESSFUL ENERGY TRANSITION, ECS 2023

   Hydropower is the major source of electricity in Switzerland contributing about 57% (36 TWh/yr) of the total annual generation. Therefore, water storage in hydropower reservoirs is crucial to balance the electricity demand over variable river flow. With the increase in storage demand and climate-related stress it becomes important to sustain the existing reservoir storage capacities. Sedimentation impairs the sustainable operation of ...

   Conference Paper

3. Photovoltaics and hydropower - Potential study at Alpine reservoirs in Switzerland 

   Maddalena, G.; Hohermuth, B.; Evers, F. M.; et al. (2023)

   ROLE OF DAMS AND RESERVOIRS IN A SUCCESSFUL ENERGY TRANSITION, ECS 2023

   Photovoltaics (PV) play a major role in Switzerland's energy transition. Compared to conventional installations in urbanized areas, PV at high altitudes may yield a 30% increase in power generation due to stronger solar irradiation and lower module temperatures as well as a considerably higher production share in winter. Numerous Swiss hydropower reservoirs are situated above 1,000ma.s.l. and already offer a good accessibility and grid ...

   Conference Paper

4. Shake table testing and finite element modeling of a modular prefabricated concrete bridge-like specimen accounting for geometry imperfections and additional damping 

   Katsamakas, Antonios A.; Vassiliou, Michalis F.; Mouzakis, Charalampos (2024)

   Earthquake Engineering & Structural Dynamics

   This paper presents the shake table testing and finite element (FE) modeling of a modular prefabricated concrete bridge-like specimen. The specimen comprised four equal-height cylindrical reinforced concrete (RC) columns capped with an RC slab. The structural connections were non-monolithic. Hence, controlled relative motion of the members, including rocking (uplift) of the piers, was allowed. The columns were connected to the slab with ...

   Journal Article

5. Effect of invert roughness on smooth spillway chute flow 

   Burgler, M.; Vetsch, D. F.; Boes, R. M.; et al. (2023)

   ROLE OF DAMS AND RESERVOIRS IN A SUCCESSFUL ENERGY TRANSITION, ECS 2023

   Spillway chutes are appurtenant dam outlet structures with the purpose to safely convey large discharges during extreme flood events. During such events, hydraulics plays a major role in the safety of the structure. Along a spillway chute, water is accelerated by gravity and may reach flow velocities in the order of 10 to 50 m/s, implying a considerable cavitation risk. On the spillway invert, turbulence is generated by shear stresses and ...

   Conference Paper

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