USING EXPANDING SPHERICAL FLAMES METHOD TO MEASURE THE UNSTRETCHED LAMINAR BURNING VELOCITIES OF LPG-AIR MIXTURES | Zendy

Vu Manh Tran | Zendy

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USING EXPANDING SPHERICAL FLAMES METHOD TO MEASURE THE UNSTRETCHED LAMINAR BURNING VELOCITIES OF LPG-AIR MIXTURES

Author(s) -

Vu Manh Tran

Publication year - 2009

Publication title -

science and technology development journal

Language(s) - English

Resource type - Journals

ISSN - 1859-0128

DOI - 10.32508/stdj.v12i8.2270

Subject(s) - laminar flow , combustion , schlieren , mechanics , volume (thermodynamics) , schlieren photography , schlieren imaging , equivalence ratio , range (aeronautics) , gasoline , combustion chamber , laminar flame speed , materials science , diffusion flame , analytical chemistry (journal) , thermodynamics , chemistry , combustor , composite material , chromatography , physics , flow (mathematics) , organic chemistry , flow visualization

(Manuscript Received on December 01 st , 2008, Manuscript Revised April 25 th , 2009) ABSTRACT: In the present study, a technique making expanding spherical flames in a constant volume combustion bomb is presented for determining burning velocities of unstretched laminar flames, and applied to liquefy petroleum gas (LPG)-air mixtures. The experimental setup consists of a cylindrical combustion chamber coupled to a classical schlieren system. Flame pictures are recorded by a high speed camera. The laminar burning velocities of LPG-air mixtures are measured over a wide range of preheat temperatures, initial pressures and equivalence ratios. The effects of these initial conditions on the laminar burning velocities are also examined in this paper.

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