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Kinetics and Mechanism of Ignition/Combustion Initiated by Electronically Excited Singlet Oxygen

Objective

The project is devoted to research in the field of combustion chemistry, particularly, investigation of non-conventional ignition/combustion technique with the use of electronically excited singlet oxygen molecules that from the environmental viewpoint is an improvement to conventional ignition/combustion.

The specific objectives (target tasks) and expected achievements (output results) are:
- Development of new physical-chemical kinetic models for the description of the processes of ignition/combustion in the presence of electronically excited singlet oxygen molecules;

- Studying of regularities of kinetics and mechanisms of nonequilibrium ignition/combustion under different methods of singlet oxygen activation (chemical, electric discharge, laser-based) and investigation of a role of the exited species (molecules, atoms, ions and radicals) in the promotion of the chain process of combustion;

- Analysing of effects of singlet oxygen excitation on basic characteristics of combustion (ignition thresholds, ignition delay, burning velocity) for the rich, stoichiometric and lean combustible H2(CH4)-O2/air mixtures;

- Evaluation of potential enhancement of ignition/combustion of real fuels (hydrogen, methane, etc) in subsonic and supersonic gas flows, including detonation combustion, assisted by excited singlet oxygen, utilising different singlet oxygen generators (chemical, electric discharge, and laser-based).

Research includes: a) theoretical analysis, based on the state-to-state, level-to-level and relaxation kinetics; b) experimental studies, using the flame, gas-discharge, laser and shock tube techniques with optical and spectroscopic diagnostics; c) numerical simulations, utilising kinetic plasma-chemical and gas-dynamic mathematical models and home-made computer codes. Use of the well-founded original ideas, validated scientific solutions and basic regularities resulting from the project will effect in (i) achieving highest combustion efficiency, (ii) understanding how to improve existing combustion technologies in order to achieve better characteristics, and (iii) spreading-up an introduction of improvements in practical applications. Achievements expected will be disseminated and utilised by all partners.

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Coordinator

Centre National de la Recherche Scientifique CNRS

Address

Avenue De La Recherche Scientifique 1c
45071 Orleans

France

Administrative Contact

Jean-Pierre MARTIN (Dr)

Participants (6)

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Baranov Central Institute of Aviation Motors

Russia

Belarus Academy of Sciences Heat and Mass Transfer Institute

Belarus

CNR Consiglio Nationale delle Ricerche IENI Instituto per l'Energetica e le Interfasi

Italy

Institute of Mechanics, Moscow State University

Russia

Ukrainian Academy of Sciences Institute of Fundamental Problems for High Technology

Ukraine

Universitat Heidelberg

Germany

Project information

Grant agreement ID: INTAS 2003-51-4736

  • Start date

    1 April 2004

  • End date

    31 March 2007

Funded under:

IC-INTAS

Coordinated by:

Centre National de la Recherche Scientifique CNRS

France