Introduction to the ALPHEUS Project

Introduction to the ALPHEUS Project

European goals for reducing greenhouse gas emissions require the increase of renewable energies used in the electric grid. Nowadays the most developed renewable energy technologies are wind, solar and hydraulic power stations. Wind and solar energy capacity has been rapidly increasing in the last years. However, the natural unpredictability of these energy sources calls for […]

New Publication: Drivetrain Architectures for a Mechanically Decoupled Contra-Rotating Reversible Pump-Turbine

With the rise of renewable energy production in the pan-European grid, the need for flexible energy storage is experiencing a rapid increase. Pumped hydropower storage has proven viability due to its long lifespan and cost-effectiveness. The ALPHEUS project will implement pumped hydropower storage for flat topographies to augment grid stability in adjacent regions. To ensure […]

The Design of the Counter Rotating RPT has been created

The current mechanical design of the counter rotating RPT was created using the CAD software PTC Creo Parametric. This design will be tested in the experiment and later validated in the CFD. With the help of two bellows couplings, a possible misalignment between the motor shaft and the drive shaft can be compensated. The torque […]

RDP Research Prototype Running in a Pump Mode

The prototype was built at Chalmers University of Technology by Petter Miltén under the supervision of Prof. Valery Chernoray. Video courtesy to Petter Miltén. Positive displacement reversible pump-turbine research model running in a pump mode. This model is being used to validate Computational Fluid Dynamics (CFD) being undertaken by Pal-Tore Storli and Luiz Henrique Accorsi Gans at the […]

New Publication: Numerical Analysis of an Initial Design of a Counter-Rotating Pump-Turbine

The paper presented at the IAHR conferences ‘Numerical Analysis of an Initial Design of a Counter-Rotating Pump-Turbine’ has been published by IOPscience. The paper has been written by Jonathan Fahlbeck, Håkan Nilsson, Saeed Salehi, Mehrdad Zangeneh and Melvin Joseph. What’s Inside? Renewable sources of energy are on the rise and will continue to increase the coming decades. A common problem […]

New Publication: Flow Characteristics of Preliminary Shutdown and Startup Sequences for a Model Counter-Rotating Pump-Turbine

Jonathan Fahlbeck*, Håkan Nilsson and Saeed Salehi released a new publication on the flow characteristics of preliminary shutdown and startup sequences for a model counter-rotating pump-turbine. Pumped Hydropower Storage (PHS) is the maturest and most economically viable technology for storing energy and regulating the electrical grid on a large scale. Due to the growing amount of […]

ALPHEUS Project Celebrates Its First Anniversary

We would like to thank you all for your participation and contributions to the ALPHEUS Project meeting last Wednesday. The Consortium meeting had provided an opportunity for an update on the whole project: highlights per work package, experiments, project planning… Although the pandemic still forced us to organize the meeting online, it was good to […]

IFAS’ institute mechanical design expertise to join ALPHEUS’ RPT design

The ALPHEUS’ project WP2 involves the design and manufacture of a pump/turbine runner that can work in low head conditions and with high round-trip efficiency. Within the project there are several partners from European universities, a company (Advanced Design Technology Ltd.) and a research organization (IHE Delft). The proposal of the project describes briefly all […]

ALPHEUS Project Work Package 2 – Update

The growing share of intermittent renewable energy sources are creating challenges for grid stability. Energy storage is now becoming an important topic of research to ensure future growth of renewable energy. Reversible pump/turbine technology (RPT) is one of the key areas of research. But many existing RPTs require high head reservoirs which limits application to […]