Counterflow Heat Exchanger

As the years progressed, the expectation for efficiency in energy saving began to increase. The type of exchanger that can provide the best solutions to the efficiency problems experienced in heat exchangers, especially at low flow rates, is the counter-flow heat recovery exchanger. These exchangers, also known as hexagonal heat exchangers, can provide high efficiency rates due to their low pitch and ability to create more surface area through which air can pass.

Working Principle

The reason why counter-flow heat recovery exchangers are called hexagonal is their shape. Heat transfer takes place in different ways in these differently shaped regions of the heat exchanger, which has a triangular region on the edges and a rectangular region in the middle. While cross flows occur in the triangular sections, a reverse flow region occurs in the quadrangular sections. The part that provides an advantage over the cross-flow heat recovery exchanger is this region where the reverse flow occurs. This rectangular area has been designed to maximize efficiency. The cross-flow region works to complement the counter-flow section. It aims to deliver the air to the reverse flow region or remove it from the reverse flow region as quickly as possible, while keeping the pressure loss low.

Dimensions