Development of Solutions for Increasing the Combustion Efficiency of Hydrogen in Water Vapor in a Hydrogen-Oxygen Steam Superheater

The study is aimed at revealing the specific features of the burning of hydrogen with oxygen in a water-vapor atmosphere. The purpose of the study is to define the optimal values for diluting the burning mixture with water vapor in the active burnout zone, providing the minimal values of incomplete...

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Bibliographic Details
Published in:Inventions (Basel) 2023-02, Vol.8 (1), p.6
Main Authors: Rogalev, Andrey, Rogalev, Nikolay, Kharlamova, Daria, Shcherbatov, Ivan, Karev, Timofey
Format: Article
Language:English
Subjects:
adiabatic burning temperature
Burnout
Carbon dioxide
Combustion
Combustion chambers
Combustion efficiency
Computer simulation
Design
Efficiency
Gas turbine engines
Gas turbines
Heat
Hydrogen
Hydrogen combustion
Mixtures
Modelling
normal flame propagation rate
Oxygen
Process parameters
Reaction kinetics
Software
Supercritical pressures
Temperature
Thermal properties
vapor superheater
Water vapor
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Summary:The study is aimed at revealing the specific features of the burning of hydrogen with oxygen in a water-vapor atmosphere. The purpose of the study is to define the optimal values for diluting the burning mixture with water vapor in the active burnout zone, providing the minimal values of incomplete combustion. Modeling of burning processes was carried out with the use of kinetic mechanisms in the Ansys Chemkin-Pro software. The result of the study was the definition of critical water vapor content in a burning mixture as 60% fraction of total mass with, obtaining dependencies of key parameters of the burning process within a wide range. The mechanism of chemical kinetics was selected for further modeling in a three-dimensional setting, and tasks for the formulation of requirements and methods for the design of efficient hydrogen combustion chambers were set up for 500 MW gas turbine plants at a supercritical pressure of 20 MPa or higher.
ISSN:2411-5134
2411-5134
DOI:10.3390/inventions8010006