Radiant Wall And Ceiling Panels With Laser-Welded Flow Channels
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Solution Overview
Problem
Existing radiant heat transfer systems for heating or cooling rooms suffer from energy loss, poor temperature regulation, and high inertia, as well as inefficient heat diffusion due to inadequate contact between metal diffusion plates and tubes.
Innovation Solution
A radiant heat transfer system comprising symmetrically profiled steel plates with a serpentine flow channel for a heat transfer fluid, where the plates are laser-welded to reduce contact areas and increase the heat exchange surface, and the surface is textured to enhance heat transfer efficiency, allowing direct contact with the fluid and reducing inertia.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If tubes are used for heat transfer fluid circulation, then heat transfer is achieved, but energy loss occurs and temperature regulation becomes difficult with significant inertia
Solution Approach 1:
The patent extracts the heat transfer fluid circulation from traditional mesh tubes and relocates it into a serpentine flow channel formed directly within the panel structure itself. This integration eliminates the need for separate tube networks, reducing energy loss points and simplifying temperature regulation by centralizing the thermal exchange function within the panel's inherent geometry.
Solution Approach 2:
The patent merges the functions of heat transfer fluid circulation and structural panel into a single integrated component. The serpentine flow channel is formed directly within the panel by connecting two profiled plates, combining what were previously separate elements (tubes and panels) into one unified heat exchange structure, thereby reducing energy loss and simplifying the overall system.
2Power
If fins are added to tubes or metal plates are combined with tubes, then heat transfer is increased, but contact between metal diffusion plate and tubes is insufficient for good heat diffusion
Solution Approach 1:
The patent merges the heat transfer fluid channel and the heat diffusion panel into a single integrated structure. The serpentine flow channel is formed directly within the panel by connecting two profiled plates, eliminating the need for separate tubes and metal diffusion plates. This ensures optimal thermal contact between the heat transfer fluid and the entire panel surface, achieving both high heat transfer efficiency and reliable heat diffusion throughout the panel structure.
Solution Approach 2:
The patent transitions from a one-dimensional tube-based heat transfer system to a two-dimensional serpentine flow channel embedded within the panel structure. This dimensional change allows the heat transfer fluid to contact a much larger surface area of the panel simultaneously, dramatically improving heat transfer efficiency and ensuring uniform heat diffusion across the entire panel surface.
3Area of stationary object
If plate thickness is reduced to 2-5 mm, then heat exchange surface area increases, but structural strength may be compromised
Solution Approach 1:
The patent employs symmetric profiling of the two plates with curved serpentine channels, creating a structurally optimized geometry. The curved profiles and interlocking design of the profiled plates provide structural reinforcement while maintaining thin plate thickness, allowing the panels to achieve both high heat exchange surface area and adequate structural strength through geometric optimization rather than increased material thickness.
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 system achieves high energy performance, rapid and comfortable temperature control with low maintenance, as it maximizes the heat exchange surface and minimizes inertia, allowing efficient heating or cooling with water as the heat transfer fluid.
Implementation Method 1
the heat transfer fluid comes into direct contact with the plates of the panel by circulating in a closed volume in a directed manner along the flow channel, thus advantageously obtaining a heat exchange surface with practically the entire surface area of the panel
Implementation Method 2
the heat transfer fluid comes into direct contact with the plates of the panel by circulating in a closed volume in a directed manner along the flow channel
Implementation Method 3
Laser welding of the steel plates makes it possible to reduce the contact areas between the plates, thus increasing the heat exchange surface of the channels. Laser welding guarantees the fixing of the plates to each other as well as the sealing of the panel
Implementation Method 4
Laser treatment of the surface of at least one of the plates, in particular the surface in contact with the heat transfer fluid in the channel, makes it possible to create a kind of surface texturization which increases the heat exchange surface between the panel and the circulating heat transfer fluid
Data Source
Figure 1
Figure 2~6
AI summary
A radiant heat transfer system for heating or cooling a room comprising at least one heat exchange element in the form of a panel (1) formed by a first plate (A) and a second plate (B) connected to the first plate, the first plate and the second plate being configured symmetrically so as to form, outside contact zones of the first and second plates, a flow channel (3) in a coil arrangement between the first and second plates for a heat transfer fluid to pass through. The first and second plates are pressed steel plates and are connected to each other by laser welding over the whole surface of the contact zones between the first and the second plate.