The types of fins inside plate-fin heat exchangers are diverse, mainly including the following:

1. Plain Fins
Characteristics: Also known as smooth fins, plain fins are made of thin metal sheets. They feature long rectangular fins with smooth walls, and their heat transfer and flow characteristics are similar to those of fluids in oblong pipes.
Role: Primarily serve to expand the heat transfer surface. They have little effect on promoting fluid turbulence, but the length of the flow channel has a significant impact on heat transfer effectiveness.
2. Corrugated Fins
Characteristics: Corrugated fins are formed by pressing a certain waveform (such as herringbone) onto plain fins. Fluids constantly change direction in the curved flow channels.
Role: Enhance fluid turbulence, disrupt the heat transfer boundary layer, and improve heat transfer performance. The denser the corrugations and the larger the amplitude, the better the heat transfer performance.
3. Serrated Fins
Characteristics: The structural feature of serrated fins is that the fluid flow channels are punched to create irregularities, aiming to increase fluid turbulence and disrupt the heat transfer boundary layer.
Role: Strengthen the heat transfer process and improve heat transfer efficiency, hence the name "high-efficiency fins". The heat transfer performance of serrated fins varies with the cut length; shorter cut lengths result in better heat transfer performance.
4. Perforated Fins
Characteristics: Perforated fins are formed by punching holes in plain fins. The shape, diameter, spacing, and arrangement of the holes depend on the design requirements of the heat exchanger.
Role: Commonly used in inlet and outlet distribution sections and where fluids undergo phase changes, perforated fins can further enhance the performance of the heat exchanger.
5. Louver Fins
Characteristics: Louver fins feature equally spaced louver grids protruding into the internal flow channels.
Role: Enhance heat transfer and improve heat exchange efficiency.
info@zhcooler.com
inquire@zhcooler.com
#barplatefinheatexchanger 
#heatexchanger
#oilcooler
#cooler
#aftercooler
#drycooler
#radiator