Elydan can help you with your geothermal installation project. We can also guide you to our partners for your Thermal Response Test.
Elydan is part of a large network of experts throughout France and beyond.
Contribute to the energy transition with geothermal energy
Geothermal energy represents a promising solution for the energy transition, as it reduces CO2 emissions by providing renewable and sustainable energy. The Thermal Response Test is a key lever for ensuring that geothermal installations are not only efficient, but also adapted to today's energy needs.
When you call on Elydan to carry out a TRT, you can be sure of being accompanied by specialists who will be able to guide you in the best possible way, and also help you to obtain financial aid.
When should a TRT be carried out?
A TRT is carried out during the design phase of a geothermal project, before the solution is chosen and installed. It is particularly useful for large-scale projects, where the geothermal probes need to provide stable energy over a long period. For residential, commercial or industrial projects, TRT provides performance guarantees before the construction phase.
It should be noted that some projects are only eligible for ADEME funding under specific conditions, in particular when it comes to carrying out the Thermal Response Test. Our experts will be able to provide you with the best possible guidance.
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Why carry out a Thermal Response Test?
The TRT provides a precise understanding of how heat is transferred between the ground and a geothermal probe. This is essential for designing efficient, long-lasting installations. By carrying out this test, you can :
Calculate soil thermal conductivity: Knowing the soil's capacity to transfer heat is crucial to correctly dimensioning a geothermal installation. Soil with good thermal conductivity helps improve system performance.
Optimize geothermal probe sizing: TRT helps determine the depth and number of probes required for a project, reducing installation costs and maximizing energy efficiency.
Ensure system longevity: By understanding the thermal dynamics of the soil, it is possible to prevent thermal imbalances that could adversely affect the long-term performance of the geothermal system.
How does a TRT work?
The Thermal Response Test takes place in several stages:
Installation of the geothermal probe: Before the test begins, a probe is installed in a borehole, often at a depth of several tens of meters, studied according to the project parameters.
Controlled heat injection: A heat transfer fluid is injected and circulates in the probe at a controlled temperature. Over a period of several hours, a defined quantity of heat is injected into the ground.
Temperature measurement: During the test, sensors continuously measure the temperature of the circulating fluid at the probe inlet and outlet. This data is used to monitor the soil's thermal response.
Analysis of results: The data collected is then analyzed to determine the soil's thermal conductivity and volumetric heat capacity. This information is essential for sizing geothermal probes.
The benefits of TRT in geothermal projects
Reliable data: By providing precise measurements of the ground's thermal behavior, TRT ensures that the geothermal installation will be adapted to actual site conditions.
Energy savings: A correctly sized system using TRT can offer significant savings on energy consumption, particularly by avoiding heat loss.
Reduced installation costs: TRT helps to avoid oversizing installations, which could lead to unnecessary costs. Thanks to accurate data, it is possible to adjust the number of boreholes required for each project.
