Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL STUDY OF OXY-FUEL COMBUSTION IN A COFLOW BURNER
Submission Author:
Vítor Auguto Andreghetto Bortolin , SP
Co-Authors:
Vítor Auguto Andreghetto Bortolin, Bernardo Luiz Harry Diniz Lemos, GUENTHER Krieger Filho
Presenter: Vítor Auguto Andreghetto Bortolin
doi://10.26678/ABCM.ENCIT2018.CIT18-0298
Abstract
Carbon Capture and Storage (CCS) technology aims to extend the lifespan of fossil fuel in the energy matrix and allow a smooth transition to renewable energy. However, the high cost prevents its used. To overcome this difficulty, the oxy-fuel concept has been proposed, allowing a reduction in the costs. Though it presents its owns challenges. The combustion in carbon dioxide rich environments reduces the reaction rates, flame stability and combustion efficiency. To improve oxy-fuel combustion, this work aims to evaluate experimentally a methane and liquefied petroleum gas (LPG) diffusion flame in different oxidizer compositions. A standard burner denoted hereafter as ”Yale burner” is employed. The cold flow velocity field is evaluated using a constant temperature anemometer (CTA), whereas chemiluminescence is used to analyze the combustion. Observing the light emission of CH radical. The results shown that the burner coflow design provides a homogeneous flow. While in the chemiluminescence the oxy-fuel flame showed a different behavior than it air counterpart. It was smaller and could only be kept stable with higher oxygen concentration than the one in air. Also present an inferior proportional emission in the CH* light range.
Keywords
Oxy-fuel, chemiluminescence, carbon capture and storage, hot wire anemometry
