Solar Thermal

Tests according to EN 12975, EN 12976 et EN 12977 standards or out-of-standard tests

Performance Tests

The performance or efficiency of a solar thermal module alone or integrated in an installation is the most important characteristic in order to define its abilities of enregy production for a given climate.

To determine these performance indexes, many tests are used:

  • Thermal performance testing of liquid heating collectors
  • Thermal performance characterisation of a solar thermal installation
  • Thermal performance characterisation under any given climatic conditions

Mechanical Tests

As for the PV modules, the solar thermal panels are submitted to mechanical loads which they must withstand alla long their life time. These loads can be simulated through the following tests:

  • Mechanical load test
  • Shock test
  • Internal pressure test

Aging Tests

The actual standards required little or no aging tests on solar thermal modules. Nevertheless, these products are also submitted to non-negligible climatic stresses and are likely to “age” as any other material or mechanical assembly.

In order to point out any weakness which could arise and cause the degradation of the performance or the destruction of the product, many tests can be foreseen:

  • Freeze protection
  • Internal thermal shock test
  • External shock test
  • Watertightness test
  • Climatic aging tests

Electrical Tests

In the solar thermal field, the electrical tests aim mainly at verifying that the product is “safe”. Among others, we can point out the following tests:

  • Lightning resistance test
  • Electrical safety of the installation
  • Compliance of each electrical element with the standards applicable