Cyclonic Plasma-UV Air Treatment for Multi-Exposure Pathogen Inactivation
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Solution Overview
Problem
Existing air treatment technologies are inadequate for effectively removing health-threatening airborne pollutants, such as pathogens, allergens, and volatile organic compounds, from indoor air, particularly due to disruptive methods and limited inactivation mechanisms.
Innovation Solution
A flexible electrode assembly generating low-power electrical discharge plasma, integrated with a cyclonic air treatment apparatus, creates an inactivation zone that effectively inactivates airborne pollutants by extending the pollutant's pathway and ensuring multiple exposures to the plasma, combined with optional UV light and electrostatic precipitation for enhanced pollutant removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing air treatment technologies are used, then air purification is provided, but the inactivation efficiency of airborne pollutants is insufficient
Solution Approach 1:
The patent combines multiple inactivation mechanisms into a single air treatment apparatus: plasma discharge from flexible electrode assemblies, UV irradiation from ultraviolet sources, and electrostatic precipitation. This merging of different technological approaches creates synergistic effects that significantly improve pollutant inactivation efficiency compared to using any single method alone.
Solution Approach 2:
The invention uses composite structural designs including flexible electrode assemblies with dielectric layers and conductive patterns, combining multiple functional materials (plasma-generating materials, UV-transparent or UV-reflective materials, electrostatic precipitator components) within a single integrated apparatus to achieve enhanced overall performance.
2Reliability
If chemical inactivation methods are used, then pathogen removal is effective, but the indoor space must be evacuated making the method disruptive
Solution Approach 1:
The patent replaces chemical inactivation methods (which require space evacuation) with physical inactivation mechanisms: plasma discharge, UV irradiation, and electrostatic precipitation. These physical methods can operate continuously without requiring the indoor space to be evacuated, eliminating operational disruption while maintaining effective pathogen removal.
3Reliability
If high power plasma discharge is used, then pollutant inactivation is enhanced, but toxic radicals are released
Solution Approach 1:
The invention carefully controls plasma discharge parameters (power level, frequency, electrode configuration) to operate in a regime that generates sufficient reactive species for effective pollutant inactivation while minimizing the formation of excessive toxic radicals. The flexible electrode assemblies are designed to produce controlled, low-power plasma that balances inactivation efficiency with safety.
4Device complexity
If a single pass through the treatment apparatus is used, then the device complexity is reduced, but pollutant exposure time is insufficient
Solution Approach 1:
The patent employs a cyclonic airflow design that creates a rotating, spiral motion of air through the treatment apparatus. This curved, multi-pass flow path naturally extends the residence time of pollutants within the treatment zone without requiring additional complex components, allowing pollutants to be exposed to plasma, UV, and electrostatic fields multiple times during a single continuous pass.
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 significantly increases the inactivation efficiency of airborne pollutants, reducing the risk of allergies and infection transmission by ensuring prolonged exposure to the inactivation zone, while maintaining low power consumption and minimizing the release of toxic radicals.
Implementation Method 1
a flexible electrode assembly configured for generating low power electrical discharge plasma
Implementation Method 2
ionization generated by the assembly is a dark or Townsend type discharge
Implementation Method 3
an apparatus having a pre-determined geometry the apparatus defining an area of generally circular fluid motion
Implementation Method 4
a plasma generating flexible electrode electrostatic precipitator assembly
Implementation Method 5
the inactivation zone can be created from use of an ultraviolet light source alone or in combination with the plasma generating flexible electrode
Data Source
AI summary
An air treatment apparatus, system and method for removal of health threatening airborne pollutants from an airflow is provided. The air treatment apparatus includes a ducting section having an inactivation zone created by either a plasma-generating flexible electrode alone, a UV light source alone, or a combination of a plasma-generating flexible electrode and a UV light source disposed within the interior of the ducting section, wherein the airflow and airborne pollutants are urged into the inactivation zone ensuring multiple exposures of airborne pollutant material into the inactivation zone resulting in purified air exiting from the apparatus.