Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition
碩士 === 國立臺灣大學 === 機械工程學研究所 === 96 === The objective of this study is to investigate the burning characteristics of fuel droplets under a microgravity condition. The microgravity condition is made by a free-falling chamber and the fuel droplets are ignited by hot wires. The phenomena of flame shape,...
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ndltd-TW-096NTU054890832016-05-11T04:16:51Z http://ndltd.ncl.edu.tw/handle/15998147608645347427 Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition 生質柴油之雙組份液滴於微重力場之燃燒研究 Je-Wei Li 李哲緯 碩士 國立臺灣大學 機械工程學研究所 96 The objective of this study is to investigate the burning characteristics of fuel droplets under a microgravity condition. The microgravity condition is made by a free-falling chamber and the fuel droplets are ignited by hot wires. The phenomena of flame shape, the formation of soot, burning rate and flame shrinkage are also observed in this experiment. We use bio-diesel as our main fuel and pre-mix it with n-dodecane, n-hexadecane and diesel, respectively. The result of burning phenomena is discussed in several aspects, such as different volume fraction of mixture, different original diameter of fuel droplet, and compares it with gravity condition. It is found that the strength of the soot shell of biodiesel is weak, and the soot particles disperse incessantly during the burning process. Bio-diesel mixed with n-dodecane improves the burning rate and causes the flame shrunk, while the rate only changes a little to the mixture of biodiesel and n-hexadecane. Moreover, fuel droplet is easier to ignite when the original diameter of it is smaller than another. It is also found that adding some bio-diesel in diesel can effectively reduce the production of soot. Therefore, the formation of soot plays an important role in microgravity combustion. 潘國隆 2008 學位論文 ; thesis 125 zh-TW |
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碩士 === 國立臺灣大學 === 機械工程學研究所 === 96 === The objective of this study is to investigate the burning characteristics of fuel droplets under a microgravity condition. The microgravity condition is made by a free-falling chamber and the fuel droplets are ignited by hot wires. The phenomena of flame shape, the formation of soot, burning rate and flame shrinkage are also observed in this experiment. We use bio-diesel as our main fuel and pre-mix it with n-dodecane, n-hexadecane and diesel, respectively. The result of burning phenomena is discussed in several aspects, such as different volume fraction of mixture, different original diameter of fuel droplet, and compares it with gravity condition.
It is found that the strength of the soot shell of biodiesel is weak, and the soot particles disperse incessantly during the burning process. Bio-diesel mixed with n-dodecane improves the burning rate and causes the flame shrunk, while the rate only changes a little to the mixture of biodiesel and n-hexadecane. Moreover, fuel droplet is easier to ignite when the original diameter of it is smaller than another. It is also found that adding some bio-diesel in diesel can effectively reduce the production of soot. Therefore, the formation of soot plays an important role in microgravity combustion.
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author2 |
潘國隆 |
author_facet |
潘國隆 Je-Wei Li 李哲緯 |
author |
Je-Wei Li 李哲緯 |
spellingShingle |
Je-Wei Li 李哲緯 Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition |
author_sort |
Je-Wei Li |
title |
Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition |
title_short |
Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition |
title_full |
Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition |
title_fullStr |
Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition |
title_full_unstemmed |
Binary Fuel of Diesels-Alkane Droplet Combustion under Microgravity Condition |
title_sort |
binary fuel of diesels-alkane droplet combustion under microgravity condition |
publishDate |
2008 |
url |
http://ndltd.ncl.edu.tw/handle/15998147608645347427 |
work_keys_str_mv |
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