Tuesday, August 27, 2019
Soot Essay Example | Topics and Well Written Essays - 750 words
Soot - Essay Example The hydrocarbon fuel molecular constitution is associated with a six carbon atom types which might be obtained, for complex hydrocarbon mixtures, such as, transportation fuels, from the proton nuclear magnetic resonance (HNMR) measurements. Soot derived from ethanol, benzene, and acetylene have dissimilar reactivity and structural order. Soot is usually produced by combusting engines, flickering candle lights, and campfires. The process of soot formation is actually very challenging to comprehend and describe. However, with regard to the demand of for much lower particulate emissions an in depth understanding is absolutely necessary. Most types of combustion systems emit particles into the atmosphere that are a major hazard because of their toxicity to the human health, especially the cardiovascular and respiratory systems. The smaller particles less 100nm in size are regarded as the most hazardous. This is because they can penetrate deep into the lungs. The proposed project aims to determine the theory of formation, structure of (via image analysis) and impact of soot, as well as assess the differences between optical and electron microscopy. Soot comprises of agglomerates with a diameter of up to several hundred nanometers. They are made of fine structures that comprise of spherical primary molecules. Soot formation commences with the pyrolysis of fuel molecules along the formation of polcyclic aromatic hydrocarbons (Vander Wal & Tomasek, 2004). The most crucial precursor in the formation of higher hydrocarbons is acetylene (C2H2). Ladommatos and Balachndran (2011) assert that the molecular structure of various hydrocarbons influence soot formation. Gulder (2007) adds that the fuel structure also impact on the soot structure. Vander Wal and Tomasek (2004) showed that the soot particles that are generated by ethanol, benzene, and acetylene have different reactivity and structural order. Soot derived
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