Ifp Energies Nouvelles

Vivien Esnault

Jean-Francois Lecomte

Marie Marsiglia

Habiba Boulharts

Vlasios Leontidis

The present invention relates to a system of heat exchange between a building () and the Earth's subsurface (), comprising a closed loop with at least one pipe () installed in said subsurface () for heat exchange with subsurface (), and connected by connecting pipes () to at least one pipe () installed in said building () for heat exchange with building (), the closed loop comprising a circulation pump (P) for circulating a fluid through said closed loop, and the fluid comprising capsules containing phase change materials. The invention also relates to a method for cooling or heating a building () from the heat exchange system between a building () and the Earth's subsurface ().

System for heat exchange between a building and the earth's sub-soil comprising the circulation of phase change materials in a closed circuit

The present invention is a tank for storing pressurized gas. The tank comprises at least one tubular element () having a wall comprising a layer of prestressed concrete (), at least one circumferential mechanical reinforcing layer (), at least one axial mechanical reinforcing layer () and a sealing layer (). The concrete from which the layer of prestressed concrete is made is chosen from ultra high performance fiber-reinforced concretes.

Tank for storing energy in the form of pressurized gas, made of ultra-high performance fibre reinforced concrete

A pipe for transporting gas, notably carbon dioxide, includes at least one tubular element, tubular element consisting of a juxtaposition of concentric layers including, from inside to outside, at least one sealing layer, a wall including a prestressed concrete layer and at least one circumferential mechanical reinforcement layer. Furthermore, the concrete making up prestressed concrete layer is selected from among the ultra-high performance fibre-reinforced concretes (UHPFRC).

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Rueil-Malmaison, France

Vivien Esnault