Oven Steam Chamber Layout for Stable Baking Temperature
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Solution Overview
Problem
Existing baker's ovens face inefficiencies in steam generation, as external steam generators require additional space and energy, and internal steam methods can cause temperature drops and debris accumulation on heating elements, affecting product quality.
Innovation Solution
A steaming device with a steam generation chamber adjacent to heating elements, featuring a heat sink member and a nozzle to convert water into steam within the chamber, which is then released through a steam outlet, directing steam away from ceramic surfaces to maintain temperature stability and prevent debris accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If water is sprayed into the oven compartment for conversion into steam, then steam generation is achieved, but the internal temperature drops significantly
Solution Approach 1:
A ballast bar is introduced as an intermediary heat transfer medium. Water is sprayed onto the heated ballast bar, and the ballast bar converts the water to steam through controlled heat transfer. This intermediary approach prevents direct temperature drop in the oven compartment while still achieving steam generation, as the ballast bar absorbs heat locally and releases it gradually for steam conversion.
Solution Approach 2:
The ballast bar utilizes the existing heating elements to maintain its own temperature, and in turn, provides steam generation service. The system is self-sustaining where the heating elements continuously heat the ballast bar, and the ballast bar continuously converts sprayed water to steam without requiring additional external energy input or cooling systems.
2Productivity
If water is sprayed directly onto heating rods and ballast bars, then steam generation is efficient, but debris accumulates on the heated surfaces
Solution Approach 1:
The water spray application point is extracted and separated from the heating rods. Instead of spraying water directly onto the heating rods, water is sprayed onto the ballast bar which is positioned separately. This extraction prevents debris from accumulating on the heating rods while still enabling efficient steam generation through the ballast bar's heat transfer surface.
3Speed
If steam is sprayed directly at ceramic surfaces, then steam delivery is direct, but the ceramic surfaces absorb the steam reducing availability to bakery products
Solution Approach 1:
The ballast bar serves as an intermediary that generates steam in a controlled manner. Instead of spraying water directly onto ceramic surfaces, the ballast bar converts water to steam through controlled heat transfer, and the steam is then released into the oven compartment. This intermediary process ensures steam is delivered in vapor form rather than liquid droplets, preventing ceramic absorption while maintaining steam availability.
4Quantity of substance
If an external steam generator is used, then steam generation capacity is sufficient, but valuable bakery space is consumed
Solution Approach 1:
The steam generation function is merged with the existing heating element structure. The ballast bar is integrated into the heating system, utilizing the same space and energy infrastructure already present in the oven compartment. This merging eliminates the need for separate external steam generator equipment, thereby conserving valuable bakery space while maintaining adequate steam generation capacity.
Solution Approach 2:
The heating elements serve dual functions: directly heating the oven compartment and indirectly generating steam through the ballast bar. This multi-functionality allows the same thermal energy infrastructure to perform both heating and steaming operations, eliminating the need for dedicated steam generation equipment and optimizing space utilization.
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 solution provides efficient steam generation without significant temperature drops, ensuring consistent product quality and reducing maintenance by directing steam away from ceramic surfaces and allowing free heat dissipation from heating rods.
Implementation Method 1
at least one heat sink member in the covered steam generation chamber to provide a heat source to convert steaming water introduced into the covered steam generation chamber into steam
Implementation Method 2
a steaming water pipe having at least one nozzle operable to direct water into the covered steam generation chamber
Implementation Method 3
The oven compartments are heated by electric heating elements in the bottom and top of the compartments
Data Source
AI summary
A steaming device (50) for a bakers oven including a steam generation chamber (55), located adjacent at least one heating element (25, 26) in an oven compartment of the baker's oven, the steam generation chamber (55) being closed at one end and having at least one steam outlet at or adjacent the other end; at least one heat sink member (57) in the steam generation chamber (55) to provide a heat source to convert steaming water introduced into the steam generation chamber (55) into steam; and a steaming water pipe (40) having at least one nozzle (41) operable to direct water into the steam generation chamber (55), the steaming water being convertible into steam within the steam generation chamber (55) and releasable to the oven compartment through the at least one steam outlet.