Gallery EQUIUM 1
Gallery EQUIUM 1
July 2019
By Equium
Headquarters 44000 Nantes, France

EQUIUM - Recycling waste heat into energy using thermoacoustic technology

EQUIUM recycles waste heat of exhaust gas into cooling to enhance energy efficiency of systems.

The solution offers a new way for the production of cooling in the CCHP (Combined Cooling and HeatPower) process, also known as trigeneration process, using thermoacoustic technology. This technology converts heat energy into work in the form of acoustic energy, using the effects that arise from the resonance of a standing-wave in a gas. It is a completely passive process with automatic and silent equipment. Additionally, there is no use of negative environmental impact fluid, such as refrigerants, along with lower CO2 and NO2 emissions.

Key features

  • Almost zero operational expenditure and a low a capital expenditure.
  • Works with exhaust gas, waste heat or solar heat.


  • ROI obtained in less than two years.

Company Profile

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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