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Wind Turbine Airfoils and Blades introduces new ideas in the design of wind turbine airfoils and blades based on functional integral theory and the finite element method, accompanied by results from wind tunnel testing. The authors also discuss the optimization of wind turbine blades as well as results from aerodynamic analysis. This book is suitable for researchers and engineers in aeronautics and can be used as a textbook for graduate students.

Wind turbines. --- Air-turbines --- Turbines --- Windmills --- Renewable Energies. --- Wind Energy.

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Finite fossil resources require the exploitation of alternative energy sources like photovoltaics. A methodology for the economic potential assessment of photovoltaic installations on buildings including building facades has been developed. It is based on detailed irradiation simulations and a combination of geographically referenced and statistical data and has been applied to the German building stock for 2015. A prognosis for the potential development until 2050 is given.

Potenzial --- Renewable Energies --- Economic --- Gebäude --- Buildings --- Erneuerbare Energien --- Photovoltaik --- Potential --- Wirtschaftlichkeit --- Photovoltaics

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China’s influence in the world keeps rising and being felt in the world. The former discrete factory of the world has converted itself in an economic superpower having its say in all the relevant international affairs. This big increase in power surged with a long term vision and effectively pursued strategies along the years, using reforms, technology transfers, investments and an influence strategy.

The Middle Empire’s influence strategy has been evolving recently with an increase in the importance given to caring about its influence capabilities (through lobbying, communication and a long term vision of its spheres of influence management). By analysing Republic of China’s lobbying and communication strategy in the renewable energies sector of Europe, strong links could be made with Beijing’s overall strategy. This work shows that China is proactive on several areas of influence, acting like what we could compare to a “panda faced dragon” in a long term, strategic way looking for extending its positions, power and influence in the renewable energies market of Europe.

Influence --- China --- strategy --- Europe --- renewable energies --- industry --- sector --- photovoltaïc --- wind --- Sciences économiques & de gestion > Stratégie & innovation

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Every human action consumes energy: heating, cooling, hot water, electricity and transport requirements – all of these require energy. But climate change demands that our energy needs also change, that we use more and more renewable energies and less and less C02. To do this, we must look at area requirements. In other words, what area per energy quantity per year does a renewable energy source require? Which sources require additional sealing and land use? How strongly does the production of renewable energy compete with other area and land uses? And what are the consequences for spatial and regional planning? The following publication will help answer these questions by providing a catalogue of area requirements for renewable energy sites. In addition, it makes clear that achieving integrated and regional energy planning involves not only energy technology, but requires further research into planning and participation processes. The concept of a regional cooperation area shows great potential in this aspect

Integrated spatial energy planning --- Spatial Planning --- Regional Planning --- Renewable Energies --- land use and planning --- land use and demand

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Currently, ocean plastic pollution has a big impact on both marine and human health. Thanks to the diversity in renewable energies on boats, diverse de-pollution energy-neutral solutions are envisaged. The aim of this work is to evaluate the relevance of installing horizontal axis wind turbines HAWT on a vessel, with a specific study on the SeaVax, a collecting plastic vessel. Indirectly, this objective also intends to provide the SeaVax company with additional information to the work already carried out.

To that end, the vessel’s energy consumption is assessed for three sectors : propulsion, plastic management and navigation. Moreover, the total daily energy production is evaluated for four scenarios associated to two locations and two time-frames. The overall energy production is divided in two sources : photovoltaic panels (PVs) and wind turbine(s) system. All computations are completed using Excel software and data available in the literature. Based on the estimated energy production of both sources, 26 models of two wind system designs are studied, one with a fixed wind turbine and the other with two moveable wind turbines. By applying constraints to these models, the most suitable model for the SeaVax is selected.

Despite a potential overestimation of 30 % for the energy consumption relative to the propulsion and the lack of information for the navigation, the evaluated energy requirements provided the company with useful and interesting details about the distribution of the energy consumption in different sectors. The evaluation of the overall production of the vessel made it possible to highlight the disparities between the studied scenarios. Moreover, the capacity factors of the solar panels confirm the relevance of their installation. By contrast, although adapted to the SeaVax, none of the HAWT study designs is assumed as relevant.

With regard to the exploitation of wind and solar potentials, the route taken by the SeaVax vessel
represents an interesting approach to be developed under the assumption that for an additional 11 m² of PVs only one studied scenario wouldn’t produce enough to meet the energy demand. Finally, it appears that HAWT are not suitable for vessel energy production. Both in terms of production and propulsion, other tracks are to be exploited with a certain compatibility with photovoltaic panels.

Cleaning oceans --- Renewable energies --- Zero-carbon ships --- Photovoltaic panels --- Wind turbines --- Plastic pollution --- Ingénierie, informatique & technologie > Energie