Modular Pallet Warmer With Heat-Spreading Insulation
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Solution Overview
Problem
Cold weather conditions pose challenges in maintaining asphalt patch at the required temperature for effective application, leading to significant wastage as cities discard up to 40% of purchased asphalt patch due to temperature management issues.
Innovation Solution
A portable heating unit designed to enclose and warm materials on a pallet, featuring modular walls with insulation and a heat spreading element, allowing for efficient temperature regulation and retention, with options for door access and wind prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If asphalt patch is stored in cold weather conditions, then it becomes difficult to maintain the required temperature for application, but using heating equipment can prevent temperature loss
Solution Approach 1:
The heating element is nested within the flexible cover structure, with the heat spreader layer positioned between the waterproof and breathable layers. This nesting allows the heating system to be integrated into the storage cover itself, providing localized heating directly at the asphalt patch without external equipment, thereby reducing heat loss to the environment while maintaining application temperature
Solution Approach 2:
The heat spreader layer acts as an intermediary between the heating element and the asphalt patch. This intermediate layer distributes heat evenly across the asphalt surface and prevents direct contact between the heating element and the material being heated, allowing for controlled temperature maintenance while minimizing energy loss through even heat distribution
2Temperature
If heating equipment is used to maintain asphalt patch temperature, then temperature control is improved, but device complexity increases
Solution Approach 1:
The flexible cover serves multiple functions: it provides weather protection, acts as an insulating barrier, incorporates the heating element for temperature maintenance, and includes the heat spreader layer for even distribution. By combining these functions into a single multi-functional device, the system achieves effective temperature control without requiring separate complex heating equipment
Solution Approach 2:
The heating system is designed to be self-regulating through the inherent properties of the materials used. The phase change material layer automatically absorbs or releases heat as needed to maintain temperature, and the heat spreader layer passively distributes heat without requiring active control mechanisms, reducing the overall complexity of the heating system while maintaining effective temperature control
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 heating unit effectively maintains materials at a desired temperature, reducing wastage and improving the application process by ensuring the asphalt patch is kept warm and usable.
Implementation Method 1
The heating component includes a heat generating element for converting electrical current to heat energy
Implementation Method 2
a heat spreading element thermally coupled to the heat generating element for substantially uniformly spreading the heat energy over the wall
Implementation Method 3
The insulation layer is positioned at one side of the heating component and is configured to direct heat energy to the interior space of the heating unit
Data Source
AI summary
A heating unit for use in heating pallets full of materials includes wall modules and a lid module. The modules include cover layers. Each module may include a heating component disposed between the cover layers and which is configured to convert electrical energy to heat energy and to distribute the heat energy. The heating component includes a heat generating element for converting electrical current to heat energy and a heat spreading element comprising carbon thermally coupled to the heat generating element. The modules may further include a thermal insulation layer. The modules may also include a receiving power connector electrically connected to the heat generating element. The modules may include a seam or hinge formed in a fashion that facilitates folding of the modules in a fashion which allows support members to support a module on an edge of the module.