Stone Slabs on Radiator Units for Baking Ovens
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Solution Overview
Problem
Baking ovens with multi-tiered trolleys and stone slabs face challenges in handling due to high weight and heat retention, leading to inefficient energy use and increased energy expenditure for reheating stone slabs for subsequent baking processes.
Innovation Solution
A gap-free arrangement of stone slabs directly on radiator units within the oven, with guide rails for secure placement and easy removal, enhances heat transfer efficiency and eliminates the need for removing heavy, hot trolleys, allowing for improved energy utilization and reduced heat radiation in the bakery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If stone slabs are arranged on rack trolleys for baking, then heat accumulation and radiation occur, but handling difficulty and energy consumption increase
Solution Approach 1:
The system is segmented into two independent parts: the rack trolley (for transport) and the stone slab (for heat accumulation). The stone slab is separated from the trolley, allowing the trolley to be easily removed while the slab remains in the oven to retain heat, thus resolving the contradiction between heat accumulation and handling ease.
Solution Approach 2:
The stone slab is extracted from the rack trolley structure and placed directly in the oven. This extraction allows the trolley to be lightweight and easy to handle, while the stone slab independently provides heat accumulation and radiation functions without being moved during operation.
2Productivity
If stone slabs are placed on rack trolleys, then baking function is achieved, but energy loss increases due to repeated heating
Solution Approach 1:
The stone slab is pre-positioned directly in the oven and preheated along with the oven. This preliminary action ensures the slab is ready to immediately absorb and radiate heat for baking, eliminating the need for repeated heating cycles and reducing energy loss.
Solution Approach 2:
The stone slab remains continuously in the oven, maintaining heat accumulation and radiation functions across multiple baking cycles. This continuous presence ensures uninterrupted heat supply and eliminates energy-wasting reheating, thereby improving productivity while reducing energy loss.
3Loss of energy
If gap-free arrangement of stone slab on radiator unit is implemented, then heat transfer efficiency improves, but structural complexity increases
Solution Approach 1:
A guide rail system acts as an intermediary mechanism between the stone slab and the radiator unit. This simple guiding structure enables precise positioning for gap-free contact, maximizing heat transfer efficiency while adding minimal structural complexity compared to the overall oven system.
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 configuration reduces handling difficulties, minimizes energy losses, and allows for more efficient baking with reduced energy consumption and expanded product height capabilities, while maintaining optimal heat transfer and uniformity.
Implementation Method 1
direct heat conduction is also made possible
Implementation Method 2
the heat radiated by radiators
Implementation Method 3
losses in the heat transfer by radiation are reduced
Data Source
Figure 1
Figure 2~3
AI summary
In a baking oven having a baking chamber (20) for receiving at least one roller trolley and containing horizontally extending radiator units (3), a stone slab lies directly on each radiator unit with no intermediate gap.