Corona Discharge Dehumidification for Low-Temperature Desorption
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Solution Overview
Problem
Conventional household dehumidifiers using refrigerants face issues such as ozone layer depletion, and existing dehumidification technologies without refrigerants, like rotary adsorption dehumidifiers, have limitations in dehumidification performance and require heating for desorption.
Innovation Solution
A device utilizing a conductive electrode with a moisture absorber, energized by a high-frequency transformer to create a corona discharge, reducing the attraction between moisture molecules and the absorber, allowing for effective desorption at low temperatures without heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a refrigerant compressor is used to condense moisture in the air, then dehumidification is achieved, but ozone layer depletion occurs
Solution Approach 1:
The patent replaces the mechanical refrigeration system (compressor, refrigerant circulation) with an electrostatic field-based desorption system. A conductive electrode generates a corona discharge that creates charged particles to interrupt the attraction between moisture molecules and the moisture absorber, enabling refrigerant-free dehumidification while eliminating ozone layer depletion
Solution Approach 2:
The patent changes the physical state and interaction parameters by applying high voltage (3000V-20000V) to the conductive electrode, creating a corona discharge that generates charged particles. This electrostatic parameter change disrupts the molecular attraction between moisture and absorber, enabling desorption without mechanical compression or chemical refrigerants
2Reliability
If hot air heating is used for moisture desorption in rotary adsorption dehumidifiers, then moisture is removed from the absorber, but energy consumption increases and dehumidification performance is restricted
Solution Approach 1:
The patent replaces thermal heating with an electrostatic field mechanism. Instead of using hot air to provide thermal energy for desorption, the system uses a conductive electrode to generate a corona discharge that creates charged particles, which electrostatically interrupt the moisture-absorber attraction, enabling low-energy desorption
Solution Approach 2:
The patent changes the desorption mechanism from thermal parameter changes (heating) to electrostatic parameter changes (applying high voltage to create corona discharge). This allows moisture desorption at low temperatures by altering the electrostatic interaction between charged particles and moisture molecules rather than increasing thermal energy
3Reliability
If high voltage is applied to create corona discharge for moisture desorption, then charged particles interrupt the attraction between moisture and absorber, but device complexity increases
Solution Approach 1:
The conductive electrode serves multiple functions: it acts as the structural support for the moisture absorber, the electrical component for generating corona discharge, and the source of charged particles for interrupting moisture attraction. This multi-functionality reduces the need for separate components, simplifying the overall device structure despite the high-voltage requirement
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
Enables efficient dehumidification by interrupting the attraction between moisture absorbers and water molecules with charged particles, enhancing desorption and reducing the need for refrigerants and heating, thus improving dehumidification performance and energy efficiency.
Implementation Method 1
a conductive electrode that is coated or wrapped by a moisture absorber is electrically energized by a voltage of 3000V to 20000V from a high-frequency transformer for causing a small current of about 100 mA to flow from the conductive electrode to its ambient atmosphere so as to create a corona discharge or glow discharge within a small ionized region around the conductive electrode
Implementation Method 2
create a corona discharge or glow discharge within a small ionized region around the conductive electrode
Data Source
AI summary
The present invention provides a device and system for desorption and dehumidification, comprising a conductive electrode, a moisture absorber, and a power source. The conductive electrode comprises a first surface and a second surface opposite to the first surface, and the first surface has a plurality of protrusion elements. The moisture absorber comprises a third surface formed on the plurality of protrusions. The power source provides power to the conductive electrode such that a uniform and stable micro-discharge phenomenon is generated thereby forming a continuous charge flow. The continuous charge flow can further generate an electrical interruption for depolarizing the attraction between the moisture molecules and moisture absorber whereby the moisture molecules can be desorbed from the moisture absorber more easily.