Common materials used in heat exchangers
Selecting the materials used in a heat exchanger is a pivotal part of the design. They need to be heat conductive whilst withstanding any corrosive properties of the mediums involved. Some materials will wear or get dirty faster than others, so upkeep and durability is another consideration.
Conductive metals
The vast majority of heat exchangers rely on conductive metals. For example, copper and steel are popular choices. However, they’re only suitable for applications up to a certain temperature and
where the fluids involved won’t react with the metals.
While conductive metals are most common, in some applications ceramics or especially designed plastic polymers can be a better alternative.
Fluids
The fluids used in the process are an important element. We design heat exchangers suitable to have seawater, oil, water or water-glycol as the coolant. We select the best option according to both your resources and the other medium involved.
We can also design heat exchangers for use with more corrosive fluids such as acids, chlorinated salt water and other chemicals. If these are being used, we carefully consider the appropriate materials to prevent corrosion.
Air
Air is also commonly used in heat exchanger systems. It has a low thermal conductivity and, therefore, often works well with an extended surface heat exchanger such as our enhanced finned heat exchanger