Currently, during the research and development stages of new hydraulic turbines, design optimization processes are carried out by numerical simulation and performance verification of the turbines by physical tests. Since ...

In turbomachinery the major efforts are concentrated on the parametric design of the runner blades, which can be seen geometrically as free-forms of considerable complexity. Therefore, the search for the optimal shape of ...

Hydroelectricity is a form of energy obtained via a low-entropy producing process carried out in hydropower stations. Most of power plants are old and in need of refurbishment. The development of the numerical methods and ...

In the draft tube of an hydraulic turbine the kinetic energy of the flow is transformed into pressure. This energy conversion significantly impacts on the efficiency and power output of the turbines and mostly those that ...

The Ranque-Hilsch Vortex Tube is an alternative device to produce a cooling effect. The knowledge of the vortex tube physics is not dearly understood, however it is used in many industrial applications for local cooling ...

Steam turbines today are equipment required mainly in industry for the generation of electric power. As the name implies, this equipment mostly use steam for the production of electrical energy. As a consequence of the ...

Hydraulic energy is the renewable energy source that has generated the most electricity throughout history. There are different types of hydroelectric power plants, depending on their generation capacity. Macro-hydroelectric ...

The blade of a hydraulic turbine is crucial in energy conversion, so during its design and redesign, any geometric disturbance that affects the interaction with the fluid and the efficiency of the turbine should be avoided. ...

Centrifugal compressors are widely used in industrial applications where different working fluid pressure ratios are required. In many cases, the industrial plants where these equipments are installed demand an increase ...

Currently, the design trend of Francis impellers focuses on the use of computational optimization processes. Basically, an optimization process is an iterative and automatic task that uses different numerical tools to carry ...