INGENIERIE

Engineering

Engineering

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Environmental changes and sustainable development issues require societies to adapt continuously.

Thanks to technologies developed through engineering sciences, essential tools can be produced to rise to the challenges facing intertropical nations.

The engineering science market is extremely vast and varied (sensors, metrology, materials) and is still very accessible in the Global South.

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This innovation developed by IRSTEA consists in a specific tool designed to cut cylindrical samples from soft and / or deformable materials and withdraw them for subsequent analysis and tests.

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This invention combines a specific device with a calculation method to determine the frictional characteristics between geotextiles and geomembranes surfaces G at the interface of a ground surfaces S. The measurements are performed on any geosynthetic materials and any “grounds” under both static & kinematic situations, using a tilted device. In the case of multilayer geosynthetics configurations, the weak sliding layer can be identified and its resistance can be quantified.

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This innovation is related to a unique strategy to operate in a sustainable way a bio electrochemical system (BES) made of a bioanode coupled with a biocathode. This design opens up opportunities to produce, in an energy efficient way, organic molecules of interest such as biochemical and biofuels from biodegradable wastes.

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This innovation consists in a measurement process specifically designed to self-calibrate most of the existing anemometers.

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This invention combines water with a mixture of two or more salts which are excellent PCM Materials. The possible concentrations allow to achieve enthalpy values ranging from 200 to 500 kJ/kg, with intermediate properties adjustable to the targeted operating conditions. As well, their processing and use are carried out at atmospheric pressure & dissociation temperatures from -18°C to 35°C.

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The technology recovers and makes use of metal (Al, Fe,…) and non-metal (Mg, Ca,…) chemical elements that are contained in industrial minerals, industrial wastes, by-products or industrial effluents. It makes it possible to design and produce mineral or organo-mineral structures based on « Layered Double Hydroxides » (LDH).

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The technology proposed here is using a thermo-hydraulic osmotic device to produce soft water from any brackish water (less than 10 g/l), contaminated water as well as waste-water treatment using low-grade solar thermal energy.

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