heat exchanger

noun

1. a device for transferring the heat of one substance to another, as from the exhaust gases to the incoming air in a regenerative furnace.

heat exchanger

noun

1. a device for transferring heat from one fluid to another without allowing them to mix

Word History and Origins

Origin of heat exchanger¹

First recorded in 1900–05

Example Sentences

The latter heat exchanger uses the coolness of the lake water to dissipate heat from the downtown buildings.

From Washington Post

Another way the Toronto system saves is by using largely passive heat exchangers, rather than energy-intensive air conditioners and chillers.

From Washington Post

When energy is needed, the sand goes through a heat exchanger that then pressurizes gas to power turbomachinery and spin generators that create the electricity.

From Popular-Science

I removed it and everything was fine, but in a few days I’d have run the pump dry and also destroyed the heat exchanger.

From Ozy