Heat exchangers are used to transfer thermal energy from one type of liquid or steam source to another kind of liquid source at a wide range of facilities. Whether heating a space or some type of ...

For several decades, our industry has applied closed-loop, water-source heat pump systems in commercial and institutional buildings. These systems can provide excellent energy performance when the ...

Air recirculation in ventilation systems is essentially the mixing of a certain amount of exhaust air into the supply air. This process provides a reduction in energy consumption when heating fresh ...

A common refrain is that they’re only effective in mild climates. We put that idea to the test. Credit...Photo illustration by The New York Times; Shutterstock Supported by By Sofia Quaglia Heat pumps ...

A British-Chinese research group has developed a novel heat pump concept consisting of a heat pump, the PCM tank, and tube solar heat collectors. Intended for demand shifting in space heating and ...