Wave-Shaped Fin Structure for Heat Exchange and Moisture Drainage
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Solution Overview
Problem
Existing fin structures in heat exchangers have low heat-exchange efficiency and inadequate drainage, leading to moisture accumulation and condensation.
Innovation Solution
A fin structure with a flat tube groove and inclined sections forming a wave shape, featuring controlled angles and continuous curvature, enhances air flow path length and contact area, improves drainage, and stabilizes the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a normal fin structure is used, then the structure is simple, but the heat-exchange efficiency is low
Solution Approach 1:
The fin structure is designed with a wave-shaped configuration featuring multiple inclined sections instead of a flat surface. This curvature increases the surface area and extends the air flow path length, thereby improving heat-exchange efficiency while maintaining manufacturing feasibility through bending technology.
Solution Approach 2:
The fin structure transitions from a two-dimensional flat surface to a three-dimensional wave shape with multiple inclined sections. This dimensional change increases the contact area between air and fin, enhancing heat-exchange efficiency without significantly increasing device complexity.
2Reliability
If a normal fin structure is used, then the manufacturing process is simple, but the drainage effect is insufficient
Solution Approach 1:
The wave-shaped fin structure features asymmetric inclined sections with specific angles (5° to 20°) that create directional flow patterns. This asymmetry promotes effective drainage by directing condensed moisture along the inclined surfaces, improving reliability without complex manufacturing processes.
3Productivity
If the fin structure contact area with air is increased, then heat-exchange efficiency improves, but air flow resistance increases
Solution Approach 1:
The wave-shaped fin structure with multiple inclined sections creates a dynamic air flow path that alternates direction as air moves through the heat exchanger. This dynamic path increases contact time and heat-exchange efficiency while the gradual inclination angles minimize flow resistance compared to abrupt obstacles.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances heat-exchange efficiency by prolonging air contact time and reducing moisture condensation, while maintaining structural stability and reducing power requirements.
Implementation Method 1
the fin structure is provided with a plurality of inclined sections. The plurality of inclined sections extend from one end of the fin structure to the other end of the fin structure. The plurality of inclined sections are sequentially connected to each other to form a wave shape
Implementation Method 2
when the moisture in air is left on the fin, a drainage effect of the fin is not good enough
Data Source
AI summary
A fin structure applied to a microchannel heat exchanger is provided. The fin structure is configured for allowing a flat tube to penetrate. The fin structure includes a plurality of inclined sections, wherein each of the plurality of inclined sections extends from one end of the fin structure to the other end thereof. The plurality of inclined sections are sequentially connected end to end to form a wave shape, and two opposite sides of each of the inclined sections are both provided with an inclined surface.