http://www.cnr.it/ontology/cnr/individuo/prodotto/ID90112
Effect of Hot Diluted Fuel Flow on Reactive Structures in MILD Combustion (Contributo in atti di convegno)
- Type
- Label
- Effect of Hot Diluted Fuel Flow on Reactive Structures in MILD Combustion (Contributo in atti di convegno) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.4405/ptse2010.P1.3 (literal)
- Alternative label
G. Sorrentino*, M. de Joannon**, A. Cavaliere* (2010)
Effect of Hot Diluted Fuel Flow on Reactive Structures in MILD Combustion
in PTSE2010 - International Conference on Processes and Technologies for a Sustainable Energy, Ischia - NA - Italy
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- G. Sorrentino*, M. de Joannon**, A. Cavaliere* (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- doi: 10.4405/ptse2010.P1.3 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Università degli Studi di Napoli Federico II, Italy_** Istituto Ricerche sulla Combustione - CNR - Napoli, Italy_P1 - 3 (literal)
- Titolo
- Effect of Hot Diluted Fuel Flow on Reactive Structures in MILD Combustion (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- 978-88-88104-11-9 (literal)
- Abstract
- In a survey of potential keys for the mitigation of environmental problems, MILD
Combustion represents a flexible and clean process that is the result of a trade-off in the
optimization of fuel conversion with respect to efficiency while not requiring drastic changes
in the configuration of traditional plants [1].
MILD combustion has been rigorously defined such as a process for which \"the inlet
temperature of the reactant mixture is higher than mixture self ignition temperature whereas
the maximum allowable temperature increase with respect to inlet temperature during
combustion is lower than mixture self ignition temperature\" [2]. Experimental [3] and
numerical [4] works carried out on a steady unidimensional diffusive layer, show an extension
of reactive regions by increasing temperature and dilution up to the condition where the
reaction zone overcomes the stagnation point. This justifies the classification of the relative
reactive structure as Homogeneous Charge Diffusion Ignition [4].
The analysis of the steady diffusive layer requires a higher level of accuracy with respect to
the premixed case because different types of conditions has to be considered in order to fit the
Mild combustion feed parameters. Experimental works carried out in specific conditions [3,
5-7] evidenced the occurrence of unusual behavior, for instance related to presence of ignition
kernels in correspondence of mixture fraction region where they are not expected to be. Hot-
Oxidant-Diluted-Fuel fed conditions, was analyzed in the past both for low and high
molecular weight paraffins [8, 9]. Results obtained for Hot-Oxidant-Diluted-Oxidant
configuration confirm the extension of the mixture fraction region covered by the reaction and
the disappearing of the pyrolysis region [9].
The present work aims to conclude the categorization and characterization of the reactive
structures in diffusive configuration, dealing with a fed condition corresponding to Hot-Fuel-
Diluted-Fuel counterflowing jet.
Processes controlled by Hot-Fuel-Diluted-Fuel oxidation can locally occurs in several
practical systems. The analysis consists in detailed simulations of the thermochemical patterns
in a dense grid of input parameters synthetized in regimes diagrams and it differs from the
other ones only in the inlet conditions. Therefore the results are tightly comparable with each
others and the discussion on their implication extend the conceptual framework previously
outlined. (literal)
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