Cooking performance fin for cooking appliance
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Solution Overview
Problem
Modern domestic cooking appliances with gas burners often experience uneven temperature distribution within the cooking compartment due to heated air naturally rising and accumulating at the top, rather than being directed towards the center where food is typically placed, leading to inefficiencies in heating and energy expenditure.
Innovation Solution
The integration of fins on the interior side walls of the cooking compartment redirects heated air away from the sides and towards the center, improving air circulation and temperature uniformity by intercepting the vertical rise of heated air and redirecting it towards the food item.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heated air is allowed to rise naturally in the cooking compartment, then the gas burner operates simply without additional components, but the temperature distribution becomes uneven with heat accumulating at the top rather than reaching the food item
Solution Approach 1:
The side walls of the cooking compartment are segmented by adding fins that divide the continuous vertical surface into sections. These fins create multiple air flow pathways and redirect heated air horizontally toward the center of the compartment, improving temperature distribution without requiring a complete redesign of the cooking compartment structure.
Solution Approach 2:
Fins are introduced as intermediary elements between the heated air and the food item. These fins intercept the rising heated air and redirect it toward the center of the cooking compartment, acting as mediators that improve heat distribution to the food without requiring direct modification of the gas burner or food positioning system.
2Loss of energy
If the gas burner heats air without redirection, then the heating system remains simple, but energy is wasted as heat accumulates at the top of the compartment rather than being directed to the food
Solution Approach 1:
The side walls are segmented with fins that create multiple air flow channels. This segmentation redirects heated air away from the top accumulation zones and channels it toward the food item, reducing energy waste while maintaining a relatively simple structural addition to the existing cooking compartment.
Solution Approach 2:
The natural tendency of heated air to rise and accumulate at the top is converted from a harmful effect (energy waste) into a beneficial one. The fins utilize this upward movement to create horizontal flow patterns that deliver heat to the food, transforming the problematic thermal convection into a useful heating mechanism.
3Productivity
If heated air circulates without redirection, then the air flow pattern remains simple and predictable, but the cooking efficiency decreases due to uneven temperature distribution
Solution Approach 1:
By segmenting the side walls with fins, the air flow pattern is transformed from a simple vertical rise to a more complex multi-directional circulation. This segmented approach improves cooking efficiency by directing heat to the food while maintaining a manageable structural complexity that can be integrated into existing oven designs.
Solution Approach 2:
Fins serve as intermediary structures that modify the air flow pattern to improve cooking efficiency. They intercept and redirect heated air toward the food item, creating more effective heat circulation without requiring complex mechanical systems or significant structural overhauls of the cooking compartment.
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 solution enhances temperature uniformity and efficiency by ensuring more heat is directed to the food item, reducing energy expenditure and minimizing heat wastage at the top of the compartment, resulting in a more consistent cooking environment.
Implementation Method 1
a gas burner that provides heat to the cooking compartment
Implementation Method 2
Air inside the cooking compartment is heated by the gas burner and passes through the panel
Implementation Method 3
interrupts the vertical rise of the heated air and redirects it toward the center of the cooking compartment
Implementation Method 4
redirects heated air away from the sides of the cooking compartment and toward the center
Data Source
AI summary
A domestic cooking appliance for heating a food item includes a main housing; a cooking compartment in the main housing, the cooking compartment being configured to receive the food item to be heated, the cooking compartment having a first sidewall and a second sidewall; a gas burner that provides heat to the cooking compartment; a burner panel located between the gas burner and the cooking compartment; and a first fin protruding from the first sidewall and into the cooking compartment.