Benefits of plate technology

Heat recovery

The diagram shows the heat recovery level as a function of initial cost. The yield from compact plate heat exchangers is up to 25% higher than for shell-and-tubes at a comparable cost.

To reach the same levels of heat recovery, shell-and-tube solutions often become several times more expensive. 

High turbulence

At the core of a compact plate heat exchanger is a set of heat-transfer plates with hot and cold streams flowing through alternate channels. The highly turbulent flow results in a substantially higher heat transfer efficiency than in a shell-and-tube, meaning compact plate heat exchangers operate with a 50-80% smaller heat transfer area.

Flow turbulence also causes high shear stress along the plates, effectively reducing the build-up of fouling and minimizing cleaning needs.

Compact size

The small required heat transfer area means units are very compact and easy to install. This makes it easy to upgrade the capacity of existing systems. Exchanging shell-and-tubes for compact plate heat exchangers means you can fit in much higher capacity on the same floor space.

The small size is also beneficial from an investment perspective, especially when exotic materials are required. A compact plate heat exchanger needs less of the material, e.g. titanium, making it much cheaper than a shell-and-tube of the same material. 

Crossing temperatures

The counter-current flow in most compact plate heat exchangers makes it possible to run a crossing temperature program in a single unit. With shell-and-tubes you need several heat exchangers in series for a crossing temperature program.