Cooking system, including a particle detecting apparatus, and a cooking method
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Solution Overview
Problem
Existing air pollution monitors, such as those measuring PM2.5 and PM10, do not provide information on the type of particles present, particularly those harmful from cooking operations, which can cause health issues like lung cancer, COPD, and cardiovascular diseases, and are not effective in identifying the source or origin of these particles.
Innovation Solution
A cooking system with a particle detection system that determines particle concentrations in multiple size ranges and uses ratios between these concentrations to control cooking processes, including altering temperature settings or ceasing cooking to reduce harmful particle generation, and integrates with an air purifier for additional purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If particle concentration monitoring is implemented using existing PM2.5/PM10 monitors, then particle pollution levels can be measured, but the type and source of particles cannot be identified
Solution Approach 1:
The particle size distribution is segmented into multiple size ranges (e.g., 0.3-1.0 μm, 1.0-2.5 μm, 2.5-10 μm) and concentration is measured in each range separately. This segmentation enables identification of particle sources based on characteristic size distributions, resolving the contradiction by providing both precise measurement and source identification capability
Solution Approach 2:
The measurement approach transitions from a single dimension (total particle concentration) to multiple dimensions (concentration across multiple size ranges). By adding the size distribution dimension, the system can identify particle types and sources while maintaining precise concentration measurement capability
2Productivity
If cooking operations continue without monitoring, then productivity is maintained, but harmful particles are generated causing health risks
Solution Approach 1:
The system continuously monitors particle concentration in multiple size ranges and provides real-time feedback to the cooking process. When characteristic particle patterns indicating harmful combustion are detected, the system alerts operators or automatically adjusts cooking parameters, enabling productivity maintenance while preventing harmful particle generation
Solution Approach 2:
The system detects early signs of harmful particle generation by monitoring characteristic size distributions before excessive harmful particles are produced. By taking preliminary action at the detection stage, the system prevents harmful particle accumulation while minimizing disruption to cooking productivity
3Loss of information
If particle detection system monitors multiple size ranges, then particle source identification is enabled, but device complexity increases
Solution Approach 1:
A single particle detection device is designed to perform multiple functions: measuring total particle concentration, determining size distribution across multiple ranges, identifying particle sources, and providing health risk assessment. This multi-functionality reduces overall system complexity compared to using separate devices for each function
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
Effectively identifies harmful particles from cooking by using particle concentration ratios, reducing their generation and concentration through automated cooking process adjustments, and providing integrated air purification.
Implementation Method 1
Optical particle sensing approaches are for example known based on optical scattering.
Data Source
AI summary
A cooking system combines a food cooking unit and a particle detection system. By deriving a ratio between particle concentrations in at least two size ranges, particular particles may be identified, and the food cooking unit may then be controlled to reduce or eliminate the generation of those particles.