Mechanically Coupled Turbine-Blower for Carbon Capture

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Solution Overview

Problem

Conventional carbon capture systems in power plants face inefficiencies due to the dual conversion of mechanical energy into electrical energy and back, leading to energy loss and increased operational costs for blowers used in carbon capture plants.

Innovation Solution

Mechanically coupling the blower directly or indirectly to the turbine, allowing the turbine's mechanical rotation to drive the blower, eliminating the need for external electrical power and reducing the blower's reliance on electronic components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the blower is powered by an external electrical source, then the carbon capture system can operate reliably, but energy loss increases due to dual conversion of mechanical energy

Engineering Contradiction:
Improveenergy lossVSAvoiddevice complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent combines the blower and turbine into a single integrated unit where the blower shaft is mechanically coupled to the turbine shaft. This merging eliminates the need for separate electrical motor and generator components, directly connecting the mechanical energy source (turbine) to the mechanical energy consumer (blower) to eliminate dual conversion losses.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The blower serves itself by being directly driven by the turbine through mechanical coupling. The turbine, which is already processing flue gas to generate mechanical energy, now directly powers the blower without requiring external electrical infrastructure, making the system self-sufficient and eliminating energy conversion losses.

Inventive Principle:
Principle #25Self-service

2Ease of manufacture

If the blower uses external electrical power, then operational flexibility is maintained, but manufacturing costs and electronic component requirements increase

Engineering Contradiction:
Improvemanufacturing costVSAvoidenergy source
Core Design Contradiction:
Ease of manufactureVSUse of energy by moving object

Solution Approach 1:

The patent extracts and removes the electrical motor and associated electronic control components from the blower assembly. By taking out these unnecessary components and replacing them with a direct mechanical drive from the turbine, the system reduces manufacturing complexity and costs while eliminating the need for external electrical power connections.

Inventive Principle:
Principle #2Taking out (Extraction)

3Loss of energy

If mechanical coupling is implemented between turbine and blower, then energy efficiency improves, but system complexity increases

Engineering Contradiction:
Improveenergy efficiencyVSAvoidmechanical coupling
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent merges the turbine and blower into a single mechanically coupled unit, eliminating the need for complex electrical control systems, motors, and power transmission infrastructure. The direct mechanical coupling through shared shafting simplifies the overall system architecture while maximizing energy efficiency by eliminating conversion losses.

Inventive Principle:
Principle #5Merging (Combining)

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 approach enhances energy efficiency, reduces manufacturing costs, and minimizes the size and weight of the blower, while maintaining effective carbon capture capabilities.

Implementation Method 1

a first shaft of the turbine that is rotatable in response to flue gas generated by combusting a fossil fuel

Methodology Applied
Scientific EffectCombustion: Combustion

Implementation Method 2

The turbine includes a first shaft that is rotatable in response to flue gas generated by combusting a fossil fuel

Methodology Applied
Scientific EffectTurbine: Turbine

Data Source

PatentEP4575188A1Carbon capture system including a blower that is mechanically coupled to a turbine
Publication Date: 2025.06.25 TECHNIP ENERGIES FRANCE SAS
  • EP4575188A1 patent drawingFigure 1
  • EP4575188A1 patent drawingFigure 2
  • EP4575188A1 patent drawingFigure 3

AI summary

In one example, a system includes a turbine and a blower. The turbine includes a first shaft that is rotatable in response to flue gas generated by combusting a fossil fuel. The blower includes a second shaft that is coupled to the first shaft of the turbine. The second shaft can rotate in response to a rotation of the first shaft.