Interior Cladding Thermal Bridges for Low-Temperature Radiant Heating

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Solution Overview

Problem

Existing radiant heating and cooling systems face inefficiencies due to significant temperature drops across interior cladding materials, limiting the use of low-temperature hydronic systems and increasing energy consumption and carbon emissions.

Innovation Solution

The implementation of thermal bridging using high-conductivity materials, such as aluminum, to create a thermal shunt that bypasses insulating layers, reducing thermal resistance and minimizing contact resistance, thereby decreasing the temperature drop across cladding materials in radiant heating and cooling systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If conventional interior cladding materials are used in radiant heating and cooling systems, then the cladding provides structural integrity and aesthetic appearance, but significant temperature drops occur across the cladding, reducing system efficiency and increasing energy consumption

Engineering Contradiction:

Improveenergy consumptionVSAvoidtemperature drop across cladding

Core Design Contradiction:

Use of energy by moving objectVSTemperature

Solution Approach 1:

The cladding is segmented into multiple layers with different thermal properties. A high-conductivity thermal bridge layer is introduced between the insulating cladding layers to create a dedicated heat transfer path, separating the thermal conduction function from the insulation function and reducing overall temperature drop.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cladding system uses composite materials combining low-conductivity insulating materials with high-conductivity thermal bridge materials. This composite structure allows simultaneous achievement of thermal insulation and efficient heat transfer through the thermal bridge pathways, reducing energy consumption while maintaining temperature distribution.

Inventive Principle:

Principle #40Composite materials

2Temperature

If high-conductivity thermal bridge materials are introduced to reduce temperature drop, then heat transfer efficiency improves, but contact resistance between different materials increases thermal resistance

Engineering Contradiction:

Improvetemperature drop across claddingVSAvoidenergy loss due to contact resistance

Core Design Contradiction:

TemperatureVSLoss of energy

Solution Approach 1:

An intermediary thermal bridge material with intermediate conductivity is introduced between the insulating cladding and the heated/cooled surface. This intermediary layer improves thermal contact and reduces contact resistance while maintaining the overall thermal performance, preventing energy loss at material interfaces.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The surface properties of contacting materials are modified to improve thermal contact. Surface roughness, contact pressure, and interface geometry are adjusted to minimize air gaps and enhance thermal coupling between different cladding layers and the thermal bridge, reducing contact resistance and associated energy losses.

Inventive Principle:

Principle #35Parameter changes

3Loss of energy

If thermal bridge materials are added to improve heat transfer, then low-temperature hydronic systems become more efficient, but the complexity of the cladding system increases

Engineering Contradiction:

Improveenergy loss in heating and coolingVSAvoidcladding system complexity

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The thermal bridge functionality is merged with the structural cladding elements themselves rather than being a separate additive component. The cladding panels are designed with integrated thermal bridge pathways that coincide with structural support elements, combining structural and thermal functions to reduce overall system complexity while improving heat transfer efficiency.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The thermal bridge materials serve multiple functions simultaneously: they provide structural support, enable heat transfer, and maintain aesthetic appearance. This multi-functionality reduces the need for additional specialized components, simplifying the overall cladding system while achieving low energy loss in heating and cooling operations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

This approach enhances the efficiency of low-temperature hydronic systems by reducing energy consumption and carbon emissions, allowing for wider use of renewable heat sources and improving comfort while maintaining structural integrity and cost-effectiveness.

Implementation Method 1

thermal bridging using high-conductivity materials, such as aluminum, to create a thermal shunt that bypasses insulating layers

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10060635B2Heat transfer through interior cladding of living spaces

Publication Date: 2018.08.28 GREGORY BRUCE

AI summary

The efficiency of radiant space heating or cooling is improved and the use of renewable energy sources enabled by reducing the resistance of the thermal path through cladding used in the floor, walls or ceiling of a domestic or commercial living space. The resistance of the thermal path is reduced by constructing the cladding with an array of thermal bridges each comprising a thermal shunt connected to a heat-collecting layer and to a heat-dispersing layer. Such bridged cladding extends the range of choice of interior cladding and of configuration of radiant system.