Hydrogen Combustion Chamber for CO2-Free Steam Power

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Solution Overview

Problem

Conventional steam power plants often rely on external firing methods using coal, nuclear waste heat, or gas turbine exhaust gases, which result in pollutant emissions and are not suitable for CO2-free and NOx-free operations, especially when integrating hydrogen combustion.

Innovation Solution

A combustion chamber system that burns pure hydrogen with oxygen, producing water vapor as a combustion product, designed for integration into existing steam power plants or industrial applications, utilizing a ceramic flame tube with modular construction and steam passages to optimize hydrogen combustion and reduce environmental impact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional external firing methods (coal, nuclear waste heat, gas turbine exhaust) are used in steam power plants, then power generation is achieved, but pollutant emissions (CO2, NOx) occur

Engineering Contradiction:
Improvepower generationVSAvoidpollutant emissions
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

The invention changes the chemical composition parameters of the combustion process by using hydrogen instead of conventional fuels (coal, gas, oil). This parameter change transforms the combustion products from CO2 and NOx to primarily water vapor, eliminating harmful emissions while maintaining power generation capability through the steam cycle

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent uses oxygen enrichment or pure oxygen combustion to accelerate and control the hydrogen combustion process. This strong oxidant approach ensures complete combustion of hydrogen, maximizing energy release for power generation while preventing formation of harmful byproducts and enabling efficient conversion to mechanical work in the turbine

Inventive Principle:
Principle #38Strong oxidants (Accelerated oxidation)

2Object-generated harmful factors

If hydrogen combustion is implemented in steam power plants, then CO2-free and NOx-free operation is achieved, but integration complexity increases

Engineering Contradiction:
Improvepollutant emissionsVSAvoidsystem integration
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The combustion chamber system designed for hydrogen combustion is constructed to be universally applicable in multiple configurations - it can replace conventional boilers entirely, or be integrated as an additional firing system in existing steam power plants. The modular design with standardized components enables flexible deployment across different plant types and scales, reducing integration complexity despite the novel combustion chemistry

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The combustion system is divided into modular segments including separate burners, mixing zones, and combustion chambers that can be independently designed, tested, and installed. This segmentation allows for gradual integration into existing plants without requiring complete system replacement, thereby managing complexity through phased implementation

Inventive Principle:
Principle #1Segmentation

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 system enables pollutant-free turbine operation with water vapor as a byproduct, achieving CO2-free and NOx-free combustion, suitable for both power generation and industrial applications, while maintaining efficiency across various steam pressures.

Implementation Method 1

The combustion chamber system (1) has, as central part, a combustion cylinder (7) with a combustion chamber (30). The combustion chamber system (1) is used for burning hydrogen with the aim of heating a flow of steam

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentUS20240318818A1Hydrogen-fired combustion chamber system, method and plant
Publication Date: 2024.09.26 SIEMENS ENERGY GLOBAL GMBH & CO KG
  • US20240318818A1 patent drawing
  • US20240318818A1 patent drawing
  • US20240318818A1 patent drawing

AI summary

A combustion chamber (“steam booster”) system for burning hydrogen with the aim of heating a flow of steam and/or of increasing the steam states of the hydrogen, and a method and a plant. In the combustion chamber system, hydrogen and preferably oxygen can be burned in the presence of water and/or water vapor in a combustion chamber, steam can flow around the combustion chamber on the outside in an intermediate space, in particular can flow over the entire length of the combustion chamber in the intermediate space of a flame tube.