Food Freshness Maintenance System with Electromagnetic Ionization
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Solution Overview
Problem
Existing food storage systems fail to effectively maintain freshness due to the presence of fungi like mold, viruses, bacteria, and ethylene gas, which can cause food to spoil and potentially harm humans or livestock.
Innovation Solution
A food freshness maintenance system that includes a chamber with a freshness maintenance device equipped with an electromagnetic wave module to ionize air-borne freshness reducing materials, a collection module to gather ionized contaminants, and an adsorption module to absorb them, along with a filter module to remove foreign substances, preventing ozone production and ensuring effective sterilization without ozone harm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional storage methods are used, then storage simplicity is maintained, but food freshness deteriorates due to fungi, bacteria, and ethylene gas accumulation
Solution Approach 1:
The storage system is divided into multiple functional modules: electromagnetic wave emission units distributed throughout the storage space, collection modules with electrostatic fields, and adsorption modules with porous materials. Each module targets specific contaminants (fungi, bacteria, ethylene gas) separately, allowing effective freshness maintenance while keeping individual components relatively simple and modular.
Solution Approach 2:
The storage system integrates multiple functions into a single apparatus: electromagnetic wave emission for sterilization, electrostatic collection for contaminant gathering, and adsorption for gas removal. This multi-functional design addresses various freshness degradation mechanisms simultaneously, improving reliability without requiring separate systems for each function.
2Reliability
If electromagnetic waves are emitted to ionize contaminants, then sterilization effectiveness is improved, but ozone production may occur causing harm
Solution Approach 1:
The system uses an intermediary collection module with electrostatic fields between the electromagnetic wave emission and the final removal stage. This intermediate stage captures and concentrates ionized contaminants before the adsorption module processes them, preventing direct contact between high-energy electromagnetic waves and food items, thereby reducing ozone production while maintaining sterilization effectiveness.
Solution Approach 2:
The system replaces traditional mechanical or chemical sterilization methods with electromagnetic wave emission and electrostatic collection mechanisms. This substitution eliminates the need for ozone-generating chemicals while achieving effective sterilization through non-contact electromagnetic fields and physical collection processes.
3Reliability
If multiple modules are added to the freshness maintenance device, then contaminant removal effectiveness is improved, but device complexity increases
Solution Approach 1:
The collection module and adsorption module are nested within or integrated with the electromagnetic wave emission structure. The electrostatic collection fields are generated within the same spatial envelope as the electromagnetic wave sources, and the adsorption materials are positioned to capture contaminants emerging from the collection module. This nested arrangement achieves multi-stage contaminant removal while minimizing overall device footprint and structural complexity.
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 system effectively ionizes and collects air-borne contaminants, improving food freshness by inactivating viruses and killing bacteria, absorbing ethylene gas, and preventing mold transfer, while avoiding ozone production, thus enhancing food storage efficiency and safety.
Implementation Method 1
an electromagnetic wave module, installed at the inlet of the main body, for ionizing food freshness reducing materials included in the air by emitting electromagnetic waves to the air
Implementation Method 2
a collection module, installed at the outlet of the main body, for collecting the ionized food freshness reducing materials from the air
Implementation Method 3
an adsorption module having a porous material adsorbing the ionized food freshness reducing materials from the air that has passed through the collection module
Data Source
AI summary
A food freshness maintenance system is proposed. The system may include a chamber configured to accommodate food and a freshness maintenance device installed in the chamber. The freshness maintenance device may include a main body including an inlet through which air flows in and an outlet through which the air is discharged. The freshness maintenance device may also include an electromagnetic wave module, installed at the inlet of the main body, for ionizing food freshness reducing materials included in the air by emitting electromagnetic waves to the air. The device may further include a collection module, installed at the outlet of the main body, for collecting the ionized food freshness reducing materials from the air.