Hexagonal Base Protrusions for Convection-Driven Vessel Heating
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Solution Overview
Problem
Conventional cooking vessels, such as kettles and pots, rely on flat bottoms for heat transfer, which leads to inefficient heating due to uniform heat distribution, resulting in longer times to reach desired temperatures and potentially causing superheating and dangerous pressures during boiling.
Innovation Solution
The design incorporates a base and wall portion with shaped surfaces, including hexagonal protrusions and corrugated patterns, that increase the surface area in contact with the heat source and fluid, promoting uneven heat transfer, convection, and rapid boiling by creating nucleation points and three-dimensional cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a flat bottom is used for heat transfer, then uniform heat distribution is achieved, but heating efficiency is reduced and heating time is extended
Solution Approach 1:
The base is designed with non-uniform thickness, creating regions of different thermal mass and heat transfer characteristics. This local variation in geometry enables simultaneous achievement of uniform overall heating while maintaining high peak heat transfer rates in critical areas, resolving the contradiction between uniformity and efficiency.
Solution Approach 2:
The invention transitions from a two-dimensional flat base to a three-dimensional structured base with varying thickness profiles. This dimensional change introduces new thermal pathways and heat distribution patterns that simultaneously achieve uniformity across the surface while maintaining high heating efficiency through optimized thermal mass distribution.
2Ease of manufacture
If a flat bottom is used for heat transfer, then simple manufacturing is maintained, but heating time to reach desired temperature is extended
Solution Approach 1:
The base thickness parameter is varied systematically across different regions of the base. This parameter change optimizes heat storage and transfer characteristics, enabling faster heating times while maintaining manufacturing feasibility through standard forming processes for variable thickness components.
3Reliability
If uniform heat distribution is used, then thermal degradation of fragile contents is prevented, but superheating and dangerous pressures occur during boiling
Solution Approach 1:
By creating local variations in base thickness, the invention generates controlled hot spots that serve as nucleation points for bubble formation. This prevents superheating while the overall uniform heat distribution continues to protect fragile contents from thermal degradation, resolving the contradiction between preventing degradation and avoiding superheating.
Solution Approach 2:
The non-uniform base structure pre-establishes nucleation sites for bubble formation before boiling occurs. This preliminary action ensures that boiling begins at multiple controlled locations, preventing the superheating condition that would otherwise lead to dangerous pressure buildup, while maintaining gentle overall heating.
4Manufacturing precision
If conventional vessel designs are used, then manufacturing consistency is maintained, but heat transfer efficiency is insufficient
Solution Approach 1:
The invention introduces controlled local variations in base thickness while maintaining consistent overall vessel dimensions and manufacturing processes. This approach improves heat transfer efficiency through optimized thermal characteristics without compromising manufacturing precision and design consistency.
Solution Approach 2:
By adding vertical dimensionality through variable base thickness, the invention enhances heat transfer efficiency without affecting horizontal dimensions or overall vessel geometry. This allows improved thermal performance while maintaining manufacturing consistency across production batches.
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 design enhances heat transfer efficiency, reduces heating time, prevents superheating, and ensures safer boiling by inducing convection and promoting rapid boiling through increased surface area contact and nucleation points.
Implementation Method 1
The base portion is configured to receive heat from a heating source... each shaped portion of the base inner surface including at least three sides extending from the bottom to the top... to assist in uneven heat transfer from the heating source to the retained fluid
Implementation Method 2
The plurality of shaped portions... to assist in uneven heat transfer from the heating source to the retained fluid... to induce convection in the fluid
Data Source
AI summary
An article of manufacture includes a wall portion having a wall inner surface and a wall outer surface, a base portion having a base inner surface and a base outer surface, at least a portion of the wall portion and the base portion forming a vessel to retain fluid therein, at least part of the base portion configured to receive heat, and a plurality of shaped portions extending above, each shaped portion of the base inner surface including at least three sides, the top of each being hexagonal in shape, each of the plurality of shaped portions capable of supplying heat from the sides to fluid adjacent to the sides, the plurality of shaped portions including the hexagonal shaped tops to assist in uneven heat transfer from the heating source to the fluid retained in the article of manufacture.