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Pedro Filipe De Almeida Manso

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Publications associées (55)

Evolution of reservoir flushing and emptying practices in a cascade of large reservoirs across several decades

Giovanni De Cesare, Pedro Filipe De Almeida Manso, Sebastián Guillén Ludeña, Samuel Luke Vorlet

Reservoir sedimentation is, at present, one of the main concerns in the operational management of dams in the Alps. For larger seasonal storage reservoirs, the main operational concern is the blockage of bottom outlets and turbine abrasion. In case of infr ...

2018

Sediment balance of a cascade of alpine reservoirs based on multi-decadal data records

Anton Schleiss, Pedro Filipe De Almeida Manso, Sebastián Guillén Ludeña

Reservoir sedimentation is a major concern in the operational management of dams and appurtenant structures. The increasing volume of sediments deposited in reservoirs leads to a loss of water storage, undermining the purpose itself of the dam for human us ...

2018

Advanced models for stress evaluation and safety assessment in steel-lined pressure tunnels

Anton Schleiss, Pedro Filipe De Almeida Manso, Alexandre Jean Pachoud

An accurate estimation of the stress in a steel liner is required for the design of steel-lined pressure shafts, both with regard to safety assessment of ageing steel-lined waterways of hydropower plants built in the 20th century, and for new projects whic ...

2018

The role of glacier retreat for Swiss hydropower production

Bettina Schaefli, Pedro Filipe De Almeida Manso

High elevation or high latitude hydropower production (HP) strongly relies on water resources that are influenced by glacier melt and are thus highly sensitive to climate warming. Despite of the wide-spread glacier retreat since the development of HP infra ...

Pergamon-Elsevier Science Ltd2018

Parametric study on the influence of jet-like inflows and outflows on fine sediment settling

Anton Schleiss, Pedro Filipe De Almeida Manso, Samuel Luke Vorlet

This paper focuses on the dynamics of fine sediments in reservoirs exposed to hydropower cascade or pumped-storage operations. The aim is at analysing the influence of parameters such as the flow inlet and flow outlet relative position, the jet hydrodynami ...

Armanini2018

Innovative methods to release fine sediments from seasonal reservoirs

Giovanni De Cesare, Anton Schleiss, Pedro Filipe De Almeida Manso, Azin Amini, Sabine Chamoun, Sebastián Guillén Ludeña

The papers present three innovative solutions for fine sediment manage- ments in seasonal reservoirs, which are at different stages of maturity. Operational reservoir stirring using jet-like inflows may facilitate sediment routing, at no addi- tional cost ...

CRC Press/Balkema2018

Charting the course: A possible route to a fully renewable Swiss power system

Pedro Filipe De Almeida Manso, Michael Lehning, Albertus Christiaan Kruyt, Stuart John Bartlett, Annelen Kahl, Jérôme François Sylvain Dujardin

The prospect of a renewable transition seems plausible for many countries, but can be shrouded in risks, costs and challenges. This paper illuminates a path for such a transition with a numerical investigation, aimed at resolving the power dynamics of a co ...

2018

Multidecadal sediment balance modelling of a cascade of alpine reservoirs and perspectives based on climate warming

Anton Schleiss, Pedro Filipe De Almeida Manso, Sebastián Guillén Ludeña

This paper presents a comprehensive methodology to model and determine the annual sediment balance of a complex system of interconnected reservoirs, based on the detailed interpretation of a multi-decadal data series of reservoir management and modelling o ...

2018

Alpine hydropower production and glacier retreat: the case of Switzerland

Bettina Schaefli, Pedro Filipe De Almeida Manso

Hydropower production (HP) in high mountainous areas relies on snow- and glacier melt influenced water resources and is thus highly sensitive to climate warming. Based on the case of Switzerland that produces over 50% of its electricity from hydropower, we ...

2018

Behaviour of a scour protection overlay with randomly distributed concrete prisms in plunge pools downstream of mobile barrages for exceptional operation conditions

Giovanni De Cesare, Anton Schleiss, Pedro Filipe De Almeida Manso, Sabine Chamoun, Davide Wüthrich

Uncontrolled scour is affecting multiple mobile dams. The plunge pool of the Chancy-Pougny barrage, located on the Rhone River bordering France and Switzerland, has recently been reported to develop in a potentially unfavourable direction after almost 100 ...

2018

Computational hydraulic modelling of fine sediment stirring and evacuation through the power waterways at the Trift reservoir

Anton Schleiss, Pedro Filipe De Almeida Manso, Célestin Leupi, Azin Amini, Sara Venuleo

Taking advantage of the withdrawal of some glaciers, several new dams will eventually be constructed in Switzerland in the coming years as a part of the 2050 energy strategy. The Trift dam, located in Berner Oberlands in Switzerland, is one of these new pr ...

2017

Fine sediment routing in a cascade of alpine reservoirs: Influence of the inlet angle on settling of fine sediments

Anton Schleiss, Pedro Filipe De Almeida Manso, Sebastián Guillén Ludeña

Reservoir sedimentation is, at present, one of the main concerns in the operational management of dams. The resulting reduction of storage capacity has negative impacts on the hydropower production, flood protection, and availability of water for irrigatio ...

2017

Assessing the potential increase of seasonal energy storage to mitigate the impact of climate change in Switzerland: Case study of the Grande Dixence dam

Anton Schleiss, Pedro Filipe De Almeida Manso, Blaise Monay, Jérôme François Sylvain Dujardin

The total storage capacity of the reservoirs in Switzerland represents only 42% of their annual production of electricity, but secures approximately 100% of hydropower’s contribution to the winter electricity supply. In order to avoid spilling, the storage ...

2017

Fluid structure interaction in straight pipelines with different anchoring conditions

Anton Schleiss, Pedro Filipe De Almeida Manso, David Ferràs Segura

This investigation aims at assessing the fluid-structure interaction (FSI) occurring during hydraulic transients in straight pipeline systems fixed to anchor blocks. A two mode 4-equation model is implemented incorporating the main interacting mechanisms: ...

Elsevier2017

Tapping hidden hydropower potential in Swiss Alpine catchments in the context of the planned nuclear power phase out

Bettina Schaefli, Anton Schleiss, Pedro Filipe De Almeida Manso, Ana Clara Pereira Barbosa Santos

In its Energy Strategy 2050, Switzerland is revising its energy perspectives with a strong focus on renewable sources of energy and in particular hydropower. In this context, the Swiss Government funded a number of competence centers for energy research (S ...

2017

Fluid–structure interaction in pipe coils during hydraulic transients

Anton Schleiss, Pedro Filipe De Almeida Manso, David Ferràs Segura

The paper presents the analysis of fluid–structure interaction occurring during hydraulic transients in pipe coils by means of a four-equation model. The purpose is to understand and describe the effect of the coil movement on the transient wave. The four- ...

Taylor & Francis Ltd2017

Assessment of hydropower potential in wastewater systems and application to Switzerland

Philippe Heller, Luca Rossi, Anton Schleiss, Pedro Filipe De Almeida Manso, Irene Almeida Samora

Energy recovery through local hydropower generation is a way of coping with high electricity expenditures in wastewater systems (WWS). Installing small hydropower plants within WWS is already in some countries eligible for incentive policy mechanisms to re ...

Pergamon-Elsevier Science Ltd2017

Impacts du changement climatique sur la production hydroélectrique alpine : comment une nouvelle retenue à Oberaletsch pourrait garantir la gestion durable des installations existantes

Anton Schleiss, Pedro Filipe De Almeida Manso, Jonathan Fauriel, Fränz Zeimetz

Suite à décision du Conseil Fédéral de sortir du nucléaire, l’hydroélectricité suisse jouera un rôle central pour réussir la transition énergétique. Cependant, le changement climatique semble avoir un impact négatif sur la production hydraulique à long ter ...

Société hydrotechnique de France2017

Stress intensity factors for axial semi-elliptical surface cracks and embedded elliptical cracks at longitudinal butt welded joints of steel-lined pressure tunnels and shafts considering weld shape

Anton Schleiss, Pedro Filipe De Almeida Manso, Alexandre Jean Pachoud

When for steel liners of pressure tunnels and shafts high-strength steels are used, welded joints are subject to the risk of hydrogen induced cold-cracking in the base material. Longitudinal butt welded joints are critical regions as they are loaded transv ...

Elsevier2017

Feasibility assessment of micro-hydropower for energy recovery in the water supply network of the city of Fribourg

Anton Schleiss, Pedro Filipe De Almeida Manso, Mário Jorge Rodrigues Pereira Da Franca, Irene Almeida Samora

In water supply systems there is potential for hydropower production at several scales, from small hydro to micro. The energy recovery within the urban water supply networks is a type of micro-hydro that may be useful for the control of excessive pressures ...

2016

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