分会场

高效清洁燃烧

摘要

The search for alternative transport fuel with comparable performance to fossil fuels in powering internal combustion engines (ICEs) has been a topical research project for decades. This is important because ICE is a well-developed technology and convenient for users, but fossil fuels are a finite resource and yet, their consumption causes environmental damage. The replacement fuel is however expected to overcome these limitations. Hydrogen gas has been on top of the list as the most suitable option but widely proposed to be mixed with other gaseous fuels for best performance. For better understanding of the combustion characteristics of methane and propane diluents, Particle Image Velocimetry (PIV) is employed in this study to compare the fundamental combustion characteristics of hydrogen in the featureless optical research engine, Leeds University Ported Optical Engine, version 2, Disc-head (LUPOE-2D). The characteristics of flow field and hydrogen flame propagation in the LUPOE have been qualitatively and quantitatively studied in terms of the hydrogen burning rate, flame wrinkling and instability.

关键词

Hydrogen, Flame instability, PIV

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