Flame Flashback Karlovitz number for CO2 diluted CH4 and C3H8 mixtures with air

Autor: de Jesus Vieira, Maria Clara, Figueira da Silva, Luis Fernando
Přispěvatelé: Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Institut Pprime (PPRIME), Université de Poitiers-ENSMA-Centre National de la Recherche Scientifique (CNRS), Figueira da Silva, Luis Fernando
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Popis: The premixed flame flashback phenomenon in tubes has been known and studied for several decades. However, the effect of the CO 2 dilution has not been addressed, which is relevant for assessing the safety of oil-producing facilities. For this reason, specific studies of premixed flame flashback in laminar flows are developed here. The objective of this work is to determine the influence of CO 2 dilution on flame flashback in mixtures of hydrocarbons (CH 4 or propane) with air. This is effected by determining the critical Karlovitz number, using both experimental and numerical data. The original results obtained show that CO 2 dilution increases the Karlovitz number when the percentage of dilution on fuel is larger than 25% and 50%, for methane and propane, respectively. This indicates a smaller flashback propensity.
Databáze: OpenAIRE