Scientists led by China’s Dongguan University of Technology have proposed a novel control approach for water-to-water heat pumps that uses carbon dioxide (CO2) as refrigerant. The model-based optimal ...

Researchers at Brunel University London have developed a new system design for residential heat pumps using transcritical carbon dioxide (CO2) as the refrigerant. CO2 has a very low boiling point and ...

CO2 heat pumps represent a promising future for cooling and heating. These systems use carbon dioxide as a refrigerant, providing an energy-efficient solution that can warm your home while heating ...

Sales of super-efficient electric heat pumps are rising, now overtaking sales of gas furnaces in the U.S. But what are heat pumps? And why do some call them a key climate solution? Here are the ...

The name "heat pump" is a bit of a misnomer, says Kevin Kircher, assistant professor of mechanical engineering at Purdue University who works with the Center for High Performance Buildings. "A lot of ...