Working principle of aluminum plate fin heat exchanger

The working principle of aluminum plate fin heat exchanger is mainly based on the principle of inter wall heat exchanger, but it has its own characteristics. The working principle can be explained in detail as follows:
Heat transfer process
Heat conduction: Inside the finned tube, the heat medium (such as hot water, steam, etc.) flows through the pipeline and transfers the heat it carries to the inner wall of the finned tube. Due to the excellent thermal conductivity of aluminum, heat can be quickly transferred to the outer wall of the finned tube.
Convection heat transfer: Outside the finned tube, air or other medium flows through the surface of the finned tube and exchanges heat with it. The structure of fins causes disturbance to the fluid as it flows through, enhancing the convective heat release coefficient of the fluid and thus improving heat transfer efficiency.
The function of fins
The presence of fins greatly increases the heat transfer area, resulting in high heat transfer efficiency.
The height of the fins greatly exceeds the thickness of the fins, so the heat conduction process along the height direction of the fins is similar to that of a homogeneous slender guide rod. At this point, the thermal resistance of the fins cannot be ignored, but the design of the fins allows for effective heat transfer along the height direction of the fins.
Fluid flow mode
Cold and hot fluids flow through different channels of the heat exchanger. These channels are assembled according to different fluid flow modes, such as counterflow, cross flow, multi stream flow, etc., to meet different heat transfer requirements.
Manufacturing process
The core is the core part of an aluminum plate fin heat exchanger for heat exchange, consisting of tightly arranged fins, seals, and baffles. The fins, seals, and partitions are welded together using vacuum brazing technology to form a complete core structure. This manufacturing process ensures the sealing and pressure bearing capacity of the heat exchanger.
Overall effect
Aluminum plate fin heat exchangers are widely used in various fields due to their heat transfer performance, compact structure, and lightweight. Its high heat transfer efficiency, compact structure, light weight, wide adaptability, and strong pressure bearing capacity make it one of the popular heat exchange equipment in modern industry.
In summary, the working principle of aluminum plate fin heat exchangers is to increase the heat transfer area and enhance fluid disturbance through the unique structure of fins through heat conduction and convection, thereby achieving heat exchange.

TOP

Home Product Tel wapmap