Corona Discharge CO2 Reduction Using Sodium Chloride Solution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for reducing carbon dioxide concentration in enclosed spaces, such as rooms or vehicles, are inefficient in terms of energy consumption and often require manual ventilation, which can be forgotten, leading to inadequate carbon dioxide reduction.
Innovation Solution
A carbon dioxide reduction device that utilizes an aqueous solution containing sodium ions, with a configuration of cathodes and anodes to generate corona discharge, causing ion wind to collide with the solution, converting carbon dioxide into sodium carbonate and sodium bicarbonate, enhancing carbon dioxide reduction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If ventilation is used to reduce carbon dioxide concentration, then carbon dioxide levels decrease, but cooling and heating efficiency decreases leading to higher energy consumption
Solution Approach 1:
The invention changes the chemical composition parameters of the aqueous solution (using different concentrations of sodium chloride, sodium hydroxide, or other alkali metal salts) to optimize the chemical reaction efficiency with carbon dioxide, thereby reducing the need for ventilation and maintaining thermal efficiency
Solution Approach 2:
The aqueous solution acts as an intermediary substance that chemically reacts with carbon dioxide in the air. The solution absorbs CO2 through chemical reaction (forming carbonates and bicarbonates), serving as a mediator between the carbon dioxide removal goal and the ventilation system that would otherwise be required
2Quantity of substance
If manual ventilation is performed to reduce carbon dioxide, then carbon dioxide levels decrease, but ventilation may be forgotten resulting in inadequate reduction
Solution Approach 1:
The system performs self-service by automatically detecting carbon dioxide levels through sensors and activating the ion release device when thresholds are exceeded. The aqueous solution continuously circulates through the ion release device, which automatically generates ions to react with CO2 without requiring manual intervention
Solution Approach 2:
The system incorporates feedback mechanisms where carbon dioxide sensors continuously monitor air quality and provide signals to the control unit. When CO2 levels exceed predetermined thresholds, the control unit activates the ion release device, creating a closed-loop feedback system that ensures reliable carbon dioxide reduction
3Productivity
If corona discharge is generated between electrodes to produce ion wind, then carbon dioxide conversion efficiency increases, but device complexity increases
Solution Approach 1:
The electrode system is segmented into multiple independent ion release devices, each with its own cathode and anode pairs. This segmentation allows the complex corona discharge function to be divided into smaller, manageable modules that can be independently controlled and maintained
Solution Approach 2:
The ion release device is designed with multi-functionality, serving both as a carbon dioxide reduction mechanism through corona discharge and as a space disinfection device through ion generation. The same electrode structure performs multiple functions, reducing overall system 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 device effectively reduces carbon dioxide by accelerating chemical reactions that convert CO2 into usable compounds, while maintaining space disinfection capabilities, and is compact and cost-effective.
Implementation Method 1
the power supply device applies a voltage having a potential difference that generates corona discharge between the first cathode and the first anode
Implementation Method 2
an ion wind is generated in the air entering the container from the intake port. The direction of the ion wind is a direction directed from the first cathode to the first anode
Implementation Method 3
a large number of fine particles of the aqueous solution that are negatively charged are generated from the aqueous solution
Implementation Method 4
converting carbon dioxide into sodium carbonate and sodium bicarbonate
Data Source
Figure 1
Figure 2(A)~2(B)
Figure 3
AI summary
In order to provide a practical technology for reducing carbon dioxide in a space, provided is a carbon dioxide reduction device including a container (10) configured to store an aqueous solution (50) of sodium chloride at the bottom. The container (10) has an intake port (11) and an exhaust port (13), and includes therein a needle-shaped electrode (21), a planar electrode (22), and a tubular electrode (23). A pulsed voltage of 8,000 V is applied between the needle-shaped electrode (21) and the planar electrode (22) and between the needle-shaped electrode (21) and the tubular electrode (23) so that the former becomes negative. The aqueous solution (50) sucked up from the bottom of the container (10) spreads in a layered shape on the planar electrode (22) to be exposed to corona discharge.