CO2 Adsorption Air Conditioning With Low-Temperature Filter Regeneration
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Solution Overview
Problem
Existing air conditioning devices face challenges in efficiently reducing indoor carbon dioxide concentrations without incurring significant energy losses during ventilation, as they rely on energy-intensive processes to circulate and purify air.
Innovation Solution
An air conditioning device equipped with a carbon dioxide suction filter using a low-temperature heat source to desorb adsorbed CO2, featuring a carbon nanofiber and nanoparticle-based adsorbent with an amine group, which is heated to 65° C to 70° C to regenerate the filter and maintain high adsorption performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ventilation is used to reduce indoor carbon dioxide concentration, then carbon dioxide removal effectiveness is improved, but energy consumption increases
Solution Approach 1:
The patent extracts and removes carbon dioxide specifically from indoor air using a dedicated CO2 filter, rather than ventilating the entire air volume. This selective extraction approach achieves carbon dioxide removal effectiveness while avoiding the energy consumption associated with full air exchange and ventilation of all indoor air.
Solution Approach 2:
The patent applies a specialized carbon dioxide filter with specific adsorption properties to targeted air passages where CO2 removal is needed, rather than uniformly treating all air. This local application of specialized filtration achieves effective CO2 removal while minimizing overall energy consumption compared to comprehensive ventilation.
2Productivity
If a carbon dioxide filter is applied to remove carbon dioxide, then carbon dioxide concentration is reduced, but energy loss occurs during the process
Solution Approach 1:
The patent employs periodic regeneration of the carbon dioxide filter using a low-temperature heat source, rather than continuous high-energy operation. The filter operates in cycles of adsorption and regeneration, maintaining CO2 removal efficiency while minimizing energy loss through intermittent, low-temperature thermal input.
Solution Approach 2:
The patent changes the temperature parameter used for filter regeneration from high temperature to low temperature, achieving effective CO2 removal and filter regeneration while significantly reducing energy loss. This parameter modification allows the filter to maintain high removal efficiency without the energy-intensive processes of conventional high-temperature regeneration.
3Reliability
If high temperature is used to regenerate the filter, then filter regeneration is effective, but energy consumption increases
Solution Approach 1:
The patent fundamentally changes the temperature parameter for filter regeneration from high temperature to low temperature, achieving effective filter regeneration and maintained CO2 adsorption capacity while dramatically reducing energy consumption. This low-temperature regeneration approach proves sufficient for restoring filter performance without the energy costs of high-temperature processes.
Solution Approach 2:
The patent replaces high-temperature thermal regeneration with a low-temperature heat source system, substituting an energy-intensive thermal mechanism with a more efficient low-energy thermal process. This substitution maintains filter regeneration effectiveness while reducing energy consumption through a modified thermal approach.
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
This solution effectively reduces indoor carbon dioxide levels while minimizing energy consumption by regenerating the filter efficiently and maintaining high adsorption capacity, thus enhancing indoor air quality and reducing operational costs.
Implementation Method 1
carbon nanofiber and nanoparticle-based adsorbent with an amine group
Implementation Method 2
adsorbent with an amine group
Implementation Method 3
heated to 65° C to 70° C to regenerate the filter
Implementation Method 4
using a low-temperature heat source to desorb adsorbed CO2
Data Source
AI summary
An air conditioning device configured so that, in a circulation operation state, a first air passage connecting a first intake port and a first discharge port is formed to move indoor air through the first intake port, through a carbon dioxide suction filter, and through the first discharge port to the indoor area, and, in a ventilation operation state, a second air passage connecting the first intake port and a second discharge port is formed to move indoor air from through the first intake port, through the carbon dioxide suction filter, and through the second discharge port to the outdoor area while a heater heats the carbon dioxide suction filter, and a third air passage connecting a second intake port to the first discharge port is formed to move outdoor air from the outdoor area through the second intake port, and through the first discharge port to the indoor area.