But because heat pumps move heat instead of creating it, they can be three to four times more efficient than traditional heaters and slash a home’s carbon dioxide emissions by as much as eight ...

Researchers in Italy have designed a novel carbon dioxide heat pump that can work with photovoltaic-thermal energy, a finned coil heat exchanger and a U-tube borehole heat exchanger. Their experiment ...

Researchers in Spain have designed a pumped thermal energy storage system that uses supercritical carbon dioxide as a heat pump and a heat engine. The proposed system is claimed to achieve an ...

They are widely seen as the best way of cutting emissions of carbon dioxide - a planet-warming gas - from home heating, which accounts for 14% of the UK's carbon emissions. Heat pumps are more ...