CO2 Recovery System Segmented Control Architecture

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Solution Overview

Problem

Carbon dioxide recovery systems face challenges in efficiently recovering carbon dioxide from the atmosphere due to high processing loads and increased wiring costs and efforts when using multiple electrochemical units, which can lead to inefficiencies and higher operational costs.

Innovation Solution

A carbon dioxide recovery system is designed with a main controller that provides control guidelines to unit controllers, allowing them to manage electrochemical cells, channel on/off units, and transfer units independently, reducing the processing load on the main controller and minimizing direct wiring connections, and incorporating a common pump for multiple holding units to streamline carbon dioxide transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple electrochemical units are used to recover more carbon dioxide, then the carbon dioxide recovery capacity is improved, but the processing load on the main controller and wiring complexity increase

Engineering Contradiction:
Improvecarbon dioxide recovery capacityVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The control system is segmented into a main controller that provides high-level control guidelines and unit controllers that execute specific control contents for each electrochemical unit. This segmentation allows multiple units to operate independently with reduced main controller processing load while maintaining coordinated operation for improved carbon dioxide recovery capacity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Control guidelines act as an intermediary between the main controller and unit controllers. The main controller provides control guidelines that serve as frameworks for unit controllers to determine specific control contents, reducing direct wiring requirements and processing load on the main controller while enabling scalable expansion of electrochemical units.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Extent of automation

If direct wiring connections are made from the main controller to each electrochemical unit, then centralized control is achieved, but wiring work and wiring costs increase

Engineering Contradiction:
Improvecentralized control capabilityVSAvoidwiring work and costs
Core Design Contradiction:
Extent of automationVSEase of manufacture

Solution Approach 1:

Control guidelines serve as an intermediary communication mechanism between the main controller and unit controllers, replacing direct wiring connections. This approach maintains centralized control capability through guideline distribution while significantly reducing wiring work and associated costs by eliminating point-to-point connections.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The main controller creates and distributes control guidelines that can be copied to multiple unit controllers. This copying mechanism allows centralized control logic to be replicated across multiple units without requiring unique wiring for each connection, reducing both wiring complexity and manufacturing costs.

Inventive Principle:
Principle #26Copying

3Ease of manufacture

If the system is designed with fixed configuration, then initial setup is simplified, but future expansion and reconfiguration become difficult

Engineering Contradiction:
Improveinitial system setupVSAvoidsystem expansion capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The control architecture is segmented into independent unit controllers that can operate autonomously based on control guidelines. This segmentation enables easy system expansion by adding or removing electrochemical units without requiring complex reconfiguration of the entire system, while maintaining simplified initial setup through standardized guideline-based control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control system is designed to be dynamic rather than fixed, allowing the number of electrochemical units to be adjusted based on operational requirements. Unit controllers can dynamically adapt to changes in system configuration while maintaining consistent control guidelines from the main controller, enabling flexible expansion and reconfiguration.

Inventive Principle:
Principle #15Dynamics

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 configuration reduces processing loads and wiring costs, allows for easier expansion or reconfiguration of the system, and enhances the efficiency of carbon dioxide recovery by distributing control tasks effectively across multiple units.

Implementation Method 1

an electrochemical cell which is disposed in a housing, adsorbs carbon dioxide by applying an adsorption potential and desorbs an adsorbed carbon dioxide by applying a desorption potential

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

a transfer unit which sucks carbon dioxide desorbed from the electrochemical cell from an inside of the housing and transfer carbon dioxide to a carbon dioxide recovery tank

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentUS20240033681A1Carbon dioxide recovery system
Publication Date: 2024.02.01 DENSO CORP
  • US20240033681A1 patent drawing
  • US20240033681A1 patent drawing
  • US20240033681A1 patent drawing

AI summary

A carbon dioxide recovery system includes a main controller and unit controllers. The main controller provides guidelines to the unit controllers for a plurality of recovery units. The guideline serves as a guideline for controlling operations of components including an electrochemical cell, a channel on/off valve, a pump, and a channel switching valve. Each one of the unit controllers determines a control content for each one of components based on the guideline.