Corrugated Heat Exchanger Assembly With Split Flow Channels
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Solution Overview
Problem
Existing heat exchangers with corrugated heat transfer sheets are complex to manufacture due to their intricate design.
Innovation Solution
A heat exchanger design featuring a channel dividing system that creates separate flow channels on opposite sides of a corrugated heat transfer sheet, allowing for efficient heat transfer between two fluid flows while simplifying the manufacturing process by using a thin sheet material and supporting elements to maintain the corrugated shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known heat exchangers with corrugated heat transfer sheets are used, then heat transfer efficiency is improved, but manufacturing complexity increases
Solution Approach 1:
The heat exchanger is divided into multiple individual corrugated heat transfer sheets (1-6) that can be manufactured separately and then assembled together. Each sheet is formed from a flat sheet material by creating corrugations along fold lines, allowing independent manufacturing and simplifying production while maintaining effective heat transfer surface area
Solution Approach 2:
The invention transitions from complex three-dimensional formed sheets to flat two-dimensional sheet materials with simple corrugations. The heat transfer surfaces are created by folding flat sheets along predetermined fold lines rather than forming complex 3D shapes, reducing manufacturing complexity while preserving the corrugated heat transfer functionality
2Reliability
If complex corrugated heat transfer sheets are manufactured, then heat transfer performance is improved, but manufacturing cost increases
Solution Approach 1:
The heat exchanger is divided into multiple individual corrugated heat transfer sheets (1-6) that can be manufactured separately and then assembled together. Each sheet is formed from a flat sheet material by creating corrugations along fold lines, allowing independent manufacturing and simplifying production while maintaining effective heat transfer surface area
Solution Approach 2:
The invention changes the manufacturing parameters from complex formable sheet metal to simple corrugated flat sheets. By altering the geometric parameters from three-dimensional formed surfaces to two-dimensional corrugated planes, the manufacturing process becomes less costly while maintaining adequate heat transfer performance through increased surface area
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 results in a simpler, less expensive heat exchanger structure with improved manufacturing efficiency and effective heat transfer, maintaining a small temperature difference across the sheet even with moderate thermal conductivity materials.
Implementation Method 1
a first fluid flow adapted to be in contact with a first surface of the corrugated heat transfer sheet, and a second fluid flow adapted to be in contact with a second surface of the corrugated heat transfer sheet, wherein the heat exchanger is adapted to transfer heat between the first fluid flow and the second fluid flow
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A heat exchanger comprising a corrugated heat transfer sheet (2) having a first surface (21) and a second surface (22) on opposite sides thereof, a first flow channel (61) for a first fluid flow in a first flow direction parallel to a longitudinal direction, and a second flow channel (62) for a second fluid flow in a second flow direction parallel to the longitudinal direction, the second flow direction being opposite to the first flow direction. The heat exchanger comprises a channel dividing system which provides the first flow channel (61) and the second flow channel (62) on opposite sides of the corrugated heat transfer sheet (2) such that the first fluid flow is adapted to be in contact with the first surface (21), and the second fluid flow is adapted to be in contact with the second surface (22).