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Turbulence-combusti...
Turbulence-combustion interaction in H2/CO/air Bunsen flame
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Battista, F. (författare)
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- Picano, Francesco (författare)
- KTH,Skolan för teknikvetenskap (SCI)
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Troiani, G. (författare)
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visa fler...
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Casciola, C. M. (författare)
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visa färre...
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(creator_code:org_t)
- Zakon Group LLC, 2020
- 2020
- Engelska.
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Ingår i: ETC 2013 - 14th European Turbulence Conference. - : Zakon Group LLC.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- In last decades, the increasing care to environmental safeguard and costs in the hydrocarbon fuel supplying have prompted in the development of alternative fuels, namely hydrogen based fuels as syngas. Syngas consists in a mixture of hydrogen and carbon monoxide (CO) in different relative concentration, in some cases with small concentration of methane. The aim of this work is to address the dynamics of turbulent hydrogen/carbon-monoxide/air Bunsen flames by means of Direct Numerical Simulation. The main issue is to understand how the thermo-diffusive instabilities occurring in pure hydrogen/air flame [7] are influenced by the presence of the carbon-monoxide. It is well known that the thermo-diffusive instabilities are mainly induced by the high hydrogen diffusivity leading to local quenching and temperature peaks in the flame with consequent increase of pollutant formation (e.g. NOx). The presence of carbon monoxide in the fuel mixture has significant effects in flame dynamics where we observe a damping of the H2/air flame instabilities with less apparent quenching and high temperature peaks.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
Nyckelord
- Alternative fuels
- Carbon monoxide
- Hydrogen fuels
- Mixtures
- Quenching
- Synthesis gas
- Turbulence
- Environmental safeguard
- High temperature peaks
- Hydrocarbon fuel
- Hydrogen diffusivity
- Pollutant formation
- Relative concentration
- Small concentration
- Temperature peaks
- Combustion
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)