本研究首先利用一適用多種燃料且具多功能之工業燃燒模擬設施，針對含不同添加劑的燃料油，進行加熱特性與污染排放之分析。研究中所使用之添加劑燃料油共分為三大類，第一類為添加輕油之基礎重油，此類燃料油燃燒效果較好，且SOX與NOX皆有降低排放的特性。第二類為含水乳化之基礎重油，此類燃料油其加熱特性皆有下降的趨勢。對於SOX的排放有減量的效果；而NOX的排放減量，則需添加水量達10%以上才有顯著的效果，否則有可能會提高NOX的生成。第三類為含少量添加劑之基礎重油，可發現此類添加劑具有助燃的效果。少數添加劑對於NOX有改善排放之效果。對於SOX由於添加量極少故無明顯改善排放之效果。

在液滴與液柱碰撞研究中，利用壓電液滴產生器產生一串相同直徑的水滴，與等直徑之噴流水柱進行碰撞研究，探討水滴與等直徑水柱在不同軸向韋伯數、不同橫向韋伯數與不同撞擊參數下之碰撞行為。研究發現到四種碰撞現象：截段黏合現象，此類現象發生於橫向韋伯數大，軸向韋伯數小時。貼附黏合現象，此類現象發生於橫向韋伯數較小，軸向韋伯數較大時。拉伸分離現象，此類現象發生於撞擊參數較高的情形下液滴與液柱擦撞所產生的現象。反彈分離現象，此類現象發生於，橫向韋伯數較小，某一特定液柱軸向韋伯數值正撞時。

A multi-functional multi-fuel industrial furnace simulator was utilized to study the burning characteristics and pollutant emissions of fuel oils containing various additives. Three specimens were tested. The first was light-oil-added fuel oil, which burned well and could reduce the emission of SOX and NOX. The second was water-emulsified fuel oil, which decreased the burning intensity and reduced SOX emission. For NOX reduction, the amount of water added had to be over 10%. The third was fuel oil with trace additives. Some additives could intensify burning. Some showed reduction in NOX. But none of them changed SOX emission.

For drop-jet collision experiment, we utilized a piezo-electric drop generator to produce a stream of uniform droplets, which was directed to collide with a liquid jet of the same diameter as the drop. The dimensionless parameters governing the collision phenomena are the jet-axial Weber number, the jet-cross-sectional Weber number, and the impact parameter. We have discovered four types of collision outcome: (a) Segmenting coalescence-this happens at high jet-cross-sectional Weber number, low jet-axial Weber number. (b) Clinging coalescence-this happens at low jet-cross-sectional Weber number, high jet-axial Weber situation. (c) Stretching separation-this happens at high impact parameters. (d) Reflecting separation-only occurs at low impact parameters and a specific jet-axial Weber number range.

第一部份 燃油添加劑之燃燒應用

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第二部份 液滴-液柱碰撞分析

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