Hybrid Insulated Panel Frame for Thermal and Structural Performance
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Solution Overview
Problem
Conventional freezer or refrigerated enclosures face a trade-off between thermal insulation and structural reliability, as materials with high insulative properties often lack structural integrity, and vice versa, leading to compromised performance in either thermal resistivity or strength.
Innovation Solution
A hybrid panel and frame system combining a structurally reliable beam material with a high thermal performance foam jacket, where the beam and jacket form a joint with a compressible interface to achieve both high R-values and structural integrity, allowing for thinner panels and reduced energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a wood frame is used for structural reliability, then strength is improved, but thermal resistivity deteriorates
Solution Approach 1:
The frame is constructed as a composite structure with a wood or composite beam providing structural strength and a foam jacket providing thermal insulation. This composite approach allows the frame to simultaneously achieve high strength capacity and high thermal resistivity (R-value), eliminating the need to trade off between these two properties.
2Loss of energy
If a high-density rail frame is used for thermal resistivity, then thermal resistivity is improved, but strength deteriorates
Solution Approach 1:
The hybrid frame combines a structural beam (wood or composite) with a foam insulation jacket, where the beam provides the necessary strength capacity and the foam layer provides the thermal insulation. This resolves the contradiction by distributing the functional requirements to different materials within the composite structure.
Solution Approach 2:
The frame is segmented into two distinct functional components: an inner beam structure responsible for mechanical strength and an outer foam jacket responsible for thermal insulation. This segmentation allows each component to be optimized for its specific function without compromising the other.
3Volume of moving object
If panel thickness is reduced to increase usable space, then volume is improved, but thermal resistivity deteriorates
Solution Approach 1:
The use of composite frame material with high R-value per inch allows for reduced panel thickness while maintaining thermal performance. The foam jacket provides superior insulation efficiency, enabling thinner panels that increase usable interior volume without sacrificing thermal resistivity.
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 hybrid panel system enhances both thermal and structural performance, reducing energy consumption, increasing usable space, and providing a more efficient and cost-effective solution compared to traditional wood or high-density rail frames.
Implementation Method 1
a jacket of a second material at least partially enclosing the beam
Implementation Method 2
At least one joint member of the first and second panels may include a deformable portion that compresses when the joint member of the first panel engages with the joint member of the second panel
Data Source
AI summary
An enclosure for use as a walk-in freezer or refrigerator includes a first panel and a second panel connected to the first panel. Each of the first and second panels includes a body having a frame coupled to the body. The frame includes a beam of a first material and a jacket of a second material at least partially enclosing the beam. An interior edge of the frame is adjacent to the body. An exterior edge is defined by the jacket and defines a joint member. The joint member of the first panel defines a groove, and the joint member of the second panel defines a protrusion adapted to engage the groove of the joint member of the first panel. At least one joint member includes a deformable portion that compresses when the joint member of the first panel engages with the joint member of the second panel.