Fiche du document
2014
- handle: 10670/1.uf6vpo
Copyright PERSEE 2003-2023. Works reproduced on the PERSEE website are protected by the general rules of the Code of Intellectual Property. For strictly private, scientific or teaching purposes excluding all commercial use, reproduction and communication to the public of this document is permitted on condition that its origin and copyright are clearly mentionned.
Sujets proches
Architectural engineering Construction Buildings--Design and construction Engineering, Architectural building bâtiment monumentCiter ce document
Olivier Bertrand et al., « Building of a Simulator to Study Low-Head Hydropower Plants Performance », Journées de l'hydraulique, ID : 10670/1.uf6vpo
Métriques
Partage / Export
Résumé
In 2010, hydraulic energy represented 80% of renewable energy production in France. It has the advantage of being highly adaptable to the demand placed on the network, in contrast to solar and wind energy. However, most potential production sites are already equipped and it is now necessary to improve their operation in order to increase productivity. The goal of the PENELOP2 project is to study the influence of different factors contributing to the flow disturbance through low-head turbines hydraulic passages. As they typically operate on a run-of-river basis, the turbines (which are generally of the bulb type) are vulnerable to flow disturbances, especially upstream. The aim is to devise a method for optimizing the shape of the built structure around the turbine, depending on inflow and outflow conditions. Our approach consists in reproduce the flow disturbances and evaluates their influences on global productivity of the turbines, meaning under non ideal conditions. We have already done several stages with the instrumentation of a unit at Vaugris plant on the Rhone river. These measurements were performed under several hydraulic conditions, in order to collect a maximum amount of data exploited by numerical and physical models built subsequently. These models (the power dam and a part of the river) have tested the various possible modifications for improving the uniformity of flow along the flow path. We are now building a more general optimization tool by interpolating/ extrapolating the results obtained on the numerical and physical models and by constructing a simulator to evaluate the loss of energy (unrecovered production part operated by turbine groups), which depends on the encountered conditions on the river and the power plant : upstream disturbance, through flow separation with several turbines in different operating conditions, and downstream disturbance.