French startup uses Hi-Fi speakers to develop eco-friendly heat pumps
Yet, their air compression systems require refrigerants to work. These refrigerants, also known as hydrofluorocarbons (HFCs), are amongst the most potent greenhouse gasses. Founded in 2017 and havingraised5 million,French deeptech startupEquiumis seeking to provide a more ecological alternative. The so-called Acoustic Heat Pump (AHP) can cover a households heating needs without the use of refrigerants. The acoustic wave causes the gas to compress or expand, producing heat or cold, respectively....