Heat Exchanger with Segmented Ribbed Shell for Enhanced Turbulence
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Solution Overview
Problem
Existing heat exchangers have inefficiencies in heat transfer due to continuous inner shells, which limit their ability to maximize heat exchange rates and are complex to manufacture, making them costly and resource-intensive.
Innovation Solution
A heat exchanger design featuring an inner shell with transversely displaced ribs in multiple portions, promoting turbulence and enhancing surface area for improved heat exchange efficiency, manufactured using segmented construction for simplicity and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a continuous inner shell is used in existing heat exchangers, then the structural integrity is maintained, but the heat exchange rate is limited and manufacturing complexity increases
Solution Approach 1:
The continuous inner shell is divided into multiple discrete portions (first portion, second portion, third portion, etc.) that are arranged axially along the heat exchanger. These segmented portions can be manufactured separately and then assembled, reducing manufacturing complexity while the transverse displacement of ribs between portions enhances turbulence and heat exchange efficiency
Solution Approach 2:
Adjacent portions are designed with transverse displacement of their ribs relative to each other, creating an asymmetric configuration. This asymmetry promotes fluid turbulence at the interfaces between portions, significantly enhancing the heat exchange rate without requiring a completely redesign of the entire shell structure
2Productivity
If ribs are added to increase surface area for heat exchange, then heat exchange efficiency improves, but manufacturing complexity and material usage increase
Solution Approach 1:
The ribbed structure is segmented into multiple portions with ribs in each portion being transversely displaced relative to adjacent portions. This segmentation allows for standardized manufacturing of individual portions that can be assembled together, reducing overall manufacturing complexity while maintaining high surface area for heat exchange
Solution Approach 2:
The ribs are arranged in multiple axial portions with transverse displacement, adding a dimensional aspect to the rib configuration. Instead of simply increasing rib density in a single continuous shell, the invention utilizes the axial dimension to create staggered rib patterns that enhance turbulence and heat exchange while managing structural complexity
3Ease of manufacture
If a segmented construction with transverse rib displacement is used, then manufacturing simplicity and material usage are reduced, but structural integrity may be compromised
Solution Approach 1:
The heat exchanger shell is divided into multiple portions that can be manufactured separately using simpler processes and then assembled. This segmentation directly improves ease of manufacture while the design ensures proper connection and alignment of portions to maintain structural integrity
Solution Approach 2:
Multiple separately manufactured portions are combined through assembly to form the complete heat exchanger shell. The portions are designed to connect in a way that restores and maintains structural integrity, while the transverse displacement of ribs between portions continues to provide the desired turbulence enhancement for heat exchange
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
The design achieves a higher heat exchange rate with reduced manufacturing complexity, allowing for efficient heat dissipation and transfer, while minimizing material usage and production costs.
Implementation Method 1
The inner shell of the heat dissipating body comprises a first and a second portion, the first portion having two ribs that are transversally displaced in relation to each other, and the second portion having two ribs that are transversally displaced in relation to each other and wherein at least one rib of the second portion is transversally displaced in relation to each rib of the first portion
Implementation Method 2
a heat exchanger having an internal conduct (32) for conducting a fluid and having a heat dissipating body (12, 12') for dissipating heat of the fluid
Implementation Method 3
between an outer shell (48) of the internal conduct (32) and an inner shell (20, 20') of the heat dissipating body a streaming space for conducting the fluid away from the bottom area is provided
Data Source
AI summary
A heat exchanger and a method of manufacturing a heat exchanger having an internal conduit for conducting a fluid, and a heat dissipating body for dissipating heat of the fluid. The heat dissipating body has a cavity extending in a longitudinal direction. An end piece of the internal conduit extends inside of the cavity and has an orifice facing a bottom surface of the cavity for feeding the fluid into a bottom area of the cavity. An inner shell of the heat dissipating body includes a first portion and a second portion, each portion having at least two ribs transversally displaced in relation to each other. At least one rib of one of the first and the second portion is transversally displaced in relation to each rib of the other of the first and the second portion.