Study of Combustion Characteristics of Cooker-top Burners by Planar Laser Induced Fluorescence (PLIF)

Name: Usa Makmool

keyword: cooking burner

Abstract: Thermal performance of widely-used cooking burners depends on a complex interaction between flow field and combustion, which is controlled by a complex configuration of the combined burner ports. There is a wide variation in performance of the burners, which is extremely undesirable in view of safety, energy conservation and environmental protection. In the first part of this study, a nationwide cooking burner performance was analyzed insight fluid dynamic and combustion by mean of a particle image velocimetry (PIV) and planar laser-induced fluorescence (PLIF). It was found that the port configuration design of the burners is a very important factor for controlling the flow direction ofthe flame, and the areas of impingement; thus, it affects heat transfer rate. The thermal efficiencies and CO emissions of the tested burners are well-correlated with the corresponding velocity vector fields and the OH PUF structure. Parametric study of the laminar partially LPG/air premixed flame structure were then carried in order to examine the effect of each key parameters in isolate. Variation of reaction zone was visualized and compared by images of a typical spectra lineof- sight emission and the local distribution of OH species in flames. Flame enhancement and inhibition phenomena are revealed. The combustion can be enhanced by spacing the adjacent burners suitable for the initial condition of the emerging jet. Flame impingement and interaction between the adjacent flames yield a strong internal recirculation zone (lRZ) thus significantly enhance the combustion. Highly intensive and uniform distnbution of OH is produced. By mean of OH PUF technique, because of its ability to visualize insight through the flame, highly clarified combustion characteristics can be achieved.

King Mongkut's University of Technology Thonburi. KMUTT Library

Address: BANGKOK

Email: info.lib@mail.kmutt.ac.th

Name: Sumrerng Jugjai

Role: Advisor

Created: 2010

Modified: 2012-01-05

Issued: 2555-01-03

วิทยานิพนธ์/Thesis

application/pdf

CallNumber: JGSEE271

eng

DegreeName: Master of Science

Level: Master's Degree

Descipline: Energy Technology

Grantor: King Mongkut's University of Technology Thonburi

©copyrights King Mongkut's University of Technology Thonburi

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