多組份油料與柴油液滴之燃燒行為研究

魏嘉興

doi:10.6342/NTU.2015.00420

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多組份油料與柴油液滴之燃燒行為研究

Investigation on the Burning Behavior of Multicomponent Fuel and Diesel Droplets

魏嘉興 , Masters　　Advisor：王興華　　

繁體中文 DOI： 10.6342/NTU.2015.00420

液滴燃燒；火焰縮口；燃燒效率；含水丙酮-丁醇-乙醇； Droplets combustion ； Flame shrinkage ； Burning rate ； WABE

Abstract │ Reference (28) │ Times Cited (1) │ Altmetrics

Abstract 〈TOP〉

Parallel Abstract 〈TOP〉

This paper will focus on the experiment on droplets combustion behavior occurring while freely falling droplets enter the high-temperature glass tube, in which the freely falling droplets are attained by Ink-Jet printing method. During the experiment, a number of key phenomena have been observed and analyzed, including flame colors, flame shrinkage, ignition delay, burning time, burning rate, as well as micro-explosion. The experiment is mainly separated into two parts. The first is to observe the changes in combustion behavior as the blends of fuels with a variety of boiling point and carbon number are exploited, such as methanol, dodecanol, hexane, heptane, hexadecane, octadecane, and propanol. In the second part, the investigation of burning behavior with the blends of diesel-water-containing acetone-butanol-ethanol (WABE) is undertaken. 
According to the experiment results, combustion behavior is influenced by latent heat of vaporization, boiling point and chemical structure. The timing of flame shrinkage occurring depends upon the variety of boiling point. There is a tendency that when the proportion of the high boiling point fuel is increased in the composition, an earlier flame shrinkage and a longer ignition delay will be obtained. An interesting finding of the experiment is that micro-explosion occurs whatsoever when burning mixed fuels. As for WABE, adding WABE to diesel fuels will trigger micro-explosion. This not only makes the burning time shorter and the burning rate increased, but also significantly reduces soot formation.

Reference ( 28 ) 〈TOP〉

[1] M. L. Botero, Y. Huang, D. L. Zhu, A. Molina and C. K. Law, “Synergistic Combustion of Droplets of Ethanol, Diesel and Biodiesel Mixtures,” Fuel, Vol. 94, pp. 342-347, 2011.
連結：
[2] B. J. Wood and W. A. Rosser, “An Experimental Study of Fuel Droplet Ignition,” AIAA Journal, Vol. 7, pp. 2288-2300, 1969.
連結：
[3] J. J. Sangiovanni and A. S. Kesten, “A Theoreticl and Experimental Investigation of the Ignition of the Fuel Droplets,” Combustion Science and Technology, Vol. 16, pp. 59-70, 1977.
連結：
[4] C. T. Avedisian and R. P. Andres, “Bubble Nucleation in Superheated Liquid- Liquid,” Journal of Colloid and Interface Science, Vol. 64, pp. 438-453, 1978.
連結：
[5] C. K. Law, “Internal Boiling and Superheating in Vaporizing Multi-Component Droplets,” AICHE Journal, Vol. 24, pp. 626-633, 1978.
連結：

Times Cited (1) 〈TOP〉

王鼎傑(2016)。多組份烷類、醇類與柴油液滴燃燒行為之研究。臺灣大學機械工程學研究所學位論文。2016。1-95。

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