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Seawater for temperature control in Cavalaire-sur-Mer

Cavalaire-sur-Mer, Franța
The sea is my heat pump
Seawater for temperature control in Cavalaire-sur-Mer
Seawater for temperature control in Cavalaire-sur-Mer
Seawater for temperature control in Cavalaire-sur-Mer
Seawater for temperature control in Cavalaire-sur-Mer

Cavalaire-sur-Mer is a French municipality with just over 7,000 inhabitants. It is located at the Côte d'Azur between Saint-Tropez and Le Lavandou. Its location in the Mediterranean Sea sparked the innovative idea to use the seawater for heating and cooling. For this ambitious project, Thermaflex could provide a solution for the thermal water distribution, using Flexalen pre-insulated pipes to secure reliable, and sustainable heating and cooling for the post office building in the city. In summer the seawater is used for cooling, and in winter for part of the heating. So the system functions as a heat pump.

Beside the establishment of new buildings and the restoration of the town hall, a ‘high environmental quality’ approach could be realized: improve the comfort of users at affordable cost, by efficiently maximizing the use of renewable energy. To achieve this, the alternative chosen by the city was a geothermal heat pump using seawater.

Obiective

The biggest challenge was to find material that was resistant to seawater –and the PB in Flexalen is perfectly suited for this! Additionally, the polyolefin insulation foam does not absorb water, so there was no risk even if the insulation came in contact with seawater. Once started, the seawater pump would create a vacuum inside the pipe - Flexalen gave the best possible resistance to deformation. Installation time was also significantly reduced due to the flexibility of the material, its availability on coil, and easy weldability.

Rezultate

The pipes were installed in a channel from the sea to the connection point at the post office. The pipes had to run underneath two roads and a pedestrian area. For the flow pipe, the choice was made for 125 mm because of the pressure loss due to the length of the pipe and the difference of height in the trajectory. Several coils were supplied for this project, and electrofusion welding applied for the connection between these coils. On various points along the trace of the pipe, fixation points were made for the installation and welding, as well as securing the pipes from moving.

Organizaţii

Municipality of Cavalaire-sur-Mer (intiator of the project)

Cabinet "Grégoire & Matteo", Sud Equip (contrator)

SNEF from La Seyne-sur-Mer (installer)

Statistică
  • 7000 
  • inhabitants use the service of the post office
  • 125 mm 
  • diameter of the pipe for flow
  • 110 mm 
  • diameter of the pipe for return
Durata
Realization in 2012
Contacte
Hubert Lhotellier
Project design and realization
Sub.: Thermaflex France
Hubert.lhotellier@thermaflex.fr
Adresa
83240 Cavalaire-sur-Mer, Franța
32095cae 1328 472f b667 e0d9a8f46873

Rămâneți în contact

Thermaflex Netherlands
  Țările de Jos
+31 416 567 777
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