Saving costs, reducing waste.

Scientists are currently trialling MOF adsorption in heat pumps in an effort to find a less energy-intensive way to recover hot and cold air from waste heat energy.

Traditional heat pumps draw environmental heat from the earth or air to vaporise a refrigerant in an evaporator. The vapour produced then rises into an electrically powered compressor where it is condensed and heated. It then turns back into liquid in the condenser and releases heat to warm rooms or cool refrigerators.

A thermally powered adsorption heat pump works in a similar way but instead of having a compressor it has an adsorption heat exchanger that uses heat as its energy source instead of electricity.

As heat is used to power these pumps rather than electricity, this disruptive technology could relieve the pressure on the power grid by harnessing waste heat from factories, power stations and computer centres.